Redesign app, prepare for 3.1.0 release

2025-11-25 05:44:23 +00:00 · 2025-06-16 12:21:45 +02:00
parent d6a5e90b3c
commit 3a6cd6af3d
19 changed files with 599 additions and 562 deletions
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -4,11 +4,12 @@

 Currently only the newest versions get security updates as security updates are also part of a release.

-Only Version 3 is supported due to the poor code quality of V2.3.0 and below.
+Only Version 3.1 and later are supported due to the poor code quality of V2.3.0 and different UI before.

 | Version | Supported          |
 | ------- | ------------------ |
-| 3.0.0   | ✅                 |
+| 3.1.X   | ✅                 |
+| 3.0.X   | ✅                 |
 | 2.3.0   | ❎                 |
 | 2.2.0   | ❎                 |
 | 2.1.0   | ❎                 |
--- a/biogascontrollerapp.py
+++ b/biogascontrollerapp.py
@@ -15,6 +15,7 @@
 # Load the config file
 import configparser
 import time
+
 config = configparser.ConfigParser()
 config.read("./config.ini")

@@ -27,13 +28,17 @@ if config["Tariffs"]["impose_tariffs"] == "True":
    try:
        import tariff

-        tariff.set({
+        tariff.set(
+            {
                "kivy": int(config["Tariffs"]["kivy_rate"]),
                "serial": int(config["Tariffs"]["pyserial_rate"]),
-            })
+            }
+        )
    except Exception as e:
        print(e)
-        print("You cannot evade the tariffs. I will impose impose a tariff of 1000000% on the launch of this app!")
+        print(
+            "You cannot evade the tariffs. I will impose impose a tariff of 1000000% on the launch of this app!"
+        )
        time.sleep(2000000)

 import os
@@ -43,7 +48,6 @@ from lib.com import Com, ComSuperClass
 import lib.test.com


-
 # Load config and disable kivy log if necessary
 if config["Dev"]["verbose"] == "True":
    pass
@@ -52,13 +56,13 @@ else:


 # Load kivy modules. Kivy is the UI framework used. See https://kivy.org
-# from kivy.core.window import Window, Config
+from kivy.core.window import Window
 from kivy.uix.screenmanager import ScreenManager
 from kivymd.app import MDApp


-# Store the current app version
-app_version = f"{config['Info']['version']}{config['Info']['subVersion']}"
+# Set Window size
+Window.size = (int(config["UI"]["width"]), int(config["UI"]["height"]))


 #          ╭────────────────────────────────────────────────╮
@@ -66,13 +70,11 @@ app_version = f"{config['Info']['version']}{config['Info']['subVersion']}"
 #          ╰────────────────────────────────────────────────╯
 # Import all the screens (= pages) used in the app
 from gui.home.home import HomeScreen
-from gui.credits.credits import CreditsScreen
 from gui.program.program import ProgramScreen
 from gui.about.about import AboutScreen
 from gui.main.main import MainScreen


-
 #          ╭────────────────────────────────────────────────╮
 #          │                 Screen Manager                 │
 #          ╰────────────────────────────────────────────────╯
@@ -84,29 +86,54 @@ class BiogasControllerApp(MDApp):

    @override
    def build(self):
-        com: ComSuperClass = Com()
+        # Configure com
+        conn = config["Connection"]
+        filters = [x for x in conn["filters"].split(",")]
+        com: ComSuperClass = Com(
+            int(conn["baudrate"]) if conn["baudrate"] != None else 19200, filters
+        )
        if config["Dev"]["use_test_library"] == "True":
-            com = lib.test.com.Com()
+            com = lib.test.com.Com(
+                int(config["Dev"]["fail_sim"]),
+                int(conn["baudrate"]) if conn["baudrate"] != None else 19200,
+                filters,
+            )
+        com.set_port_override(conn["baudrate"])

-        self.theme_cls.theme_style = "Dark"
-        self.theme_cls.primary_palette = "Green"
-        self.theme_cls.accent_palette = "Lime"
-        self.theme_cls.theme_style_switch_animation = True
-        self.theme_cls.theme_style_switch_animation_duration = 0.8
+        self.theme_cls.theme_style = (
+            "Dark" if config["UI"]["theme"] == None else config["UI"]["theme"]
+        )
+        self.theme_cls.material_style = "M3"
+        self.theme_cls.primary_palette = (
+            "Green"
+            if config["UI"]["primary_color"] == None
+            else config["UI"]["primary_color"]
+        )
+        self.theme_cls.accent_palette = (
+            "Lime"
+            if config["UI"]["accent_color"] == None
+            else config["UI"]["accent_color"]
+        )
+        self.theme_cls.theme_style_switch_animation = False

        self.icon = "./BiogasControllerAppLogo.png"
-        self.title = "BiogasControllerApp-" + app_version
+        self.title = "BiogasControllerApp-V3.1.0"
        self.screen_manager.add_widget(HomeScreen(com, name="home"))
        self.screen_manager.add_widget(MainScreen(com, name="main"))
        self.screen_manager.add_widget(ProgramScreen(com, name="program"))
-        self.screen_manager.add_widget(CreditsScreen(name="credits"))
        self.screen_manager.add_widget(AboutScreen(name="about"))
        return self.screen_manager

+    def change_theme(self):
+        self.theme_cls.theme_style = (
+            "Dark" if self.theme_cls.theme_style == "Light" else "Light"
+        )
+

 # Disallow this file to be imported
 if __name__ == "__main__":
-    print("""
+    print(
+        """
 ┏━━┓━━━━━━━━━━━━━━━━━━━━┏━━━┓━━━━━━━━━┏┓━━━━━━━━┏┓━┏┓━━━━━━━━┏━━━┓━━━━━━━━
 ┃┏┓┃━━━━━━━━━━━━━━━━━━━━┃┏━┓┃━━━━━━━━┏┛┗┓━━━━━━━┃┃━┃┃━━━━━━━━┃┏━┓┃━━━━━━━━
 ┃┗┛┗┓┏┓┏━━┓┏━━┓┏━━┓━┏━━┓┃┃━┗┛┏━━┓┏━┓━┗┓┏┛┏━┓┏━━┓┃┃━┃┃━┏━━┓┏━┓┃┃━┃┃┏━━┓┏━━┓
@@ -116,9 +143,10 @@ if __name__ == "__main__":
 ━━━━━━━━━━━┏━┛┃━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┃┃━━┃┃━━
 ━━━━━━━━━━━┗━━┛━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┗┛━━┗┛━━

-                            Version 3.0.0
+                            Version 3.1.0

 => Initializing....
-          """)
+          """
+    )
    BiogasControllerApp().run()
    print("\n => Exiting!")
--- a/20
+++ b/20
@@ -1,11 +1,27 @@
 ***CHANGELOG***
+V3.1.0
+- Completely redesigned User Interface using KivyMD
+- Added config option for themes

-V3.0-beta
- Redesigned GUI
+V3.0.1
+- Install script fixes
+- Packaging fixes
+
+
+V3.0.0
+- Small UI fixes
 - Consolidated multiple previously separate screens
 - Completely rewritten backend
 - Improved stability
 - Cleaned, documented code
+- Reduced overhead of connecting
+- Improved hooking reliability
+- Removed installer, simpler setup now possible
+- Removed official MacOS support as it didn't really work before anyway
+- Added additional config options
+- Improved linguistics
+- Bugfixes
+

 OLD VERSIONS
 ------------
--- a/config.ini
+++ b/config.ini
@@ -1,21 +1,24 @@
-[Ports]
-specificport = None
+[Connection]
+override_port = None
+baudrate = 19200
+# List the names as which the adapter cable will show up separated by commas below
+# For ENATECH, the below is likely correct.
+filters = USB-Serial Controller, Prolific USB-Serial Controller

 [UI]
-sizeh = 600
-sizew = 800
+height = 600
+width = 800
+# Can be Dark or Light
+theme = Dark
+primary_color = Green
+accent_color = Lime

 [Dev]
-verbose = True
-log_level = DEBUG
-use_test_library = True
+verbose = False
+use_test_library = False
+fail_sim = 10

 [Tariffs]
 impose_tariffs = False
 kivy_rate = 50
 pyserial_rate = 500
-
-[Info]
-version = V2.3.0
-subversion =
-
--- a/gui/about/about.kv
+++ b/gui/about/about.kv
@@ -1,37 +1,52 @@
 <AboutScreen>:
    name: "about"
-    canvas.before:
-        Color:
-            rgba: (10,10,10,0.1)
-        Rectangle:
-            size: self.size
-            pos: self.pos
-    GridLayout:
+    MDFloatLayout:
+        Image:
+            source: "BiogasControllerAppLogo.png"
+            pos_hint: {"top": 0.9}
+            size_hint_y: .3
+            radius: 36, 36, 0, 0
+            allow_stretch: True
+            keep_ratio: True
+
+        MDGridLayout:
            cols: 1
-        Label:
+            MDLabel:
                text: "About"
                font_size: 40
-            color: (0, 113, 0, 1)
+                halign: 'center'
+                valign: 'center'
                bold: True
-        FloatLayout:
-            GridLayout:
-                pos_hint: {"x":0.05, "y":0.05}
-                size_hint: 0.9, 0.9
-                cols: 3
-                Button:
+                italic: True
+                theme_text_color: 'Secondary'
+                pos_hint: {'center_x': 0, 'center_y': 0}
+
+        MDFillRoundFlatButton:
+            pos_hint: {'x': 0.1, 'y': 0.05}
            text: "Back"
-                    background_color: (255,0,0,0.6)
            on_release:
                app.root.current = "home"
                root.manager.transition.direction = "up"
-                Button:
-                    text: "Report a\nBug"
-                    background_color: (255,0,0,0.6)
+
+        MDFillRoundFlatButton:
+            pos_hint: {'right': 0.9, 'y': 0.05}
+            text: "Report a Bug"
            on_release:
-                        root.report_issue()
-                Button:
-                    text: "Credits"
-                    background_color: (255,0,0,0.6)
+                root.goto("issues")
+
+        MDFillRoundFlatButton:
+            pos_hint: {'right': 0.48, 'y': 0.05}
+            text: "Wiki"
            on_release:
-                        app.root.current = "credits"
-                        root.manager.transition.direction = "left"
+                root.goto("wiki")
+
+        MDFillRoundFlatButton:
+            pos_hint: {'x': 0.52, 'y': 0.05}
+            text: "Repo"
+            on_release:
+                root.goto("repo")
+        Label:
+            text: "This is a simple controller application that allows you to read data from and configure the microcontroller used in ENATECH at KSWO. It is written in Python using KivyMD as its UI framework.\n\nThis software is free Software licensed under the GNU General Public License Version 3 and as such comes with absolutely no warranty."
+            pos_hint: {'x': 0.05, 'top': 0.42}
+            text_size: self.width, None
+            size_hint: 0.9, None
--- a/gui/about/about.py
+++ b/gui/about/about.py
@@ -1,13 +1,28 @@
 from kivy.uix.screenmanager import Screen
+from kivymd.uix.dialog import MDDialog
+from kivymd.uix.button import MDFlatButton
 from kivy.lang import Builder
 import webbrowser

-from gui.popups.popups import SingleRowPopup
-

 class AboutScreen(Screen):
-    def report_issue(self):
-        SingleRowPopup().open("Opened your web-browser")
+    def __init__(self, **kw):
+        self.opened_web_browser_dialog = MDDialog(
+            title="Open Link",
+            text="Your webbrowser has been opened. Continue there",
+            buttons=[
+                MDFlatButton(text="Ok", on_release=lambda _: self.opened_web_browser_dialog.dismiss()),
+            ],
+        )
+        super().__init__(**kw)
+
+    def goto(self, loc: str):
+        if loc == "wiki":
+            webbrowser.open('https://github.com/janishutz/BiogasControllerApp/wiki', new=2)
+        elif loc == "issues":
            webbrowser.open('https://github.com/janishutz/BiogasControllerApp/issues', new=2)
+        elif loc == "repo":
+            webbrowser.open('https://github.com/janishutz/BiogasControllerApp', new=2)
+        self.opened_web_browser_dialog.open()

 Builder.load_file('./gui/about/about.kv')
--- a/gui/credits/credits.kv
+++ b/gui/credits/credits.kv
@@ -1,27 +0,0 @@
-<CreditsScreen>:
-    name: "credits"
-    canvas.before:
-        Color:
-            rgba: (20,20,20,0.2)
-        Rectangle:
-            size: self.size
-            pos: self.pos
-    FloatLayout:
-        Button:
-            text: "back"
-            size_hint: 0.4, 0.2
-            pos_hint: {"x":0.3, "y":0.1}
-            on_release:
-                app.root.current = "about"
-                root.manager.transition.direction = "right"
-        GridLayout:
-            cols:1
-            pos_hint:{"x":0.05, "y":0.35}
-            size_hint: 0.9, 0.5
-            Label:
-                text: "This is a controller sofware that helps you reprogram and monitor the micro-controller used in ENATECH at KSWO"
-            Label:
-                text: "Written by:                   Janis Hutz\nDesigned by:                Janis Hutz\nDesign language:         Kivy"
-            Label:
-                text: "This software is free Software licensed under the GPL V3 (GNU General Public License) and as such comes with absolutely no warranty. In return, you can use, modify, distribute or use any of the code of this software in your own project, if you reuse the same license. For more infos, you can find a copy of this license in the project folder."
-                text_size: self.width, None
--- a/gui/credits/credits.py
+++ b/gui/credits/credits.py
@@ -1,8 +0,0 @@
-from kivymd.uix.screen import MDScreen
-from kivy.lang import Builder
-
-
-class CreditsScreen(MDScreen):
-    pass
-
-Builder.load_file('./gui/credits/credits.kv')
--- a/gui/home/home.kv
+++ b/gui/home/home.kv
@@ -1,16 +1,10 @@
 <HomeScreen>:
    name: "home"
-    MDGridLayout:
-        cols:1
    MDFloatLayout:
-            MDCard:
-                radius: 36
-                pos_hint: {"center_x": .5, "center_y": .5}
-                size_hint: .6, .8
-
        Image:
            source: "BiogasControllerAppLogo.png"
-                    pos_hint: {"top": 1}
+            pos_hint: {"top": 0.9}
+            size_hint_y: .3
            radius: 36, 36, 0, 0
            allow_stretch: True
            keep_ratio: True
@@ -28,28 +22,29 @@
                pos_hint: {'center_x': 0, 'center_y': 0}


-        MDFloatLayout:
        MDGridLayout:
+            spacing: 20
+            size_hint: None, None
+            size: self.minimum_size
            cols: 2
-                size_hint: 0.2, 0.2
-                pos_hint: {"x": 0.4, "y": 0.3}
-
-                MDRaisedButton:
-                    on_release: root.start()
+            pos_hint: {'center_x': 0.5, 'center_y': 0.3 }
+            MDFillRoundFlatButton:
                font_size: 30
                text: "Start"
-                    radius: [25]
-                MDRaisedButton:
+                on_release: root.start()
+
+            MDFillRoundFlatButton:
                text: "Quit"
                font_size: 30
-                    on_release:
-                        root.quit()
+                pos_hint: {"x": 0.7, "center_y": 0}
+                on_release: root.quit()

        MDLabel:
-                text: "You are running version V3.0.1"
+            text: "You are running version V3.1.0"
            font_size: 13
            pos_hint: {"y": -0.45, "x":0}
            halign: 'center'
+
        MDFlatButton:
            text: "About"
            font_size: 13
@@ -57,3 +52,11 @@
            pos_hint: {"x":0.01, "y":0.01}
            on_release:
                root.to_about()
+
+        # MDFlatButton:
+        #     text: "Change Theme"
+        #     font_size: 13
+        #     size_hint: 0.07, 0.06
+        #     pos_hint: {"right":0.99, "y":0.01}
+        #     on_release:
+        #         app.change_theme()
--- a/gui/home/home.py
+++ b/gui/home/home.py
@@ -1,6 +1,8 @@
+from kivymd.app import MDApp
+from kivymd.uix.button import MDFlatButton
+from kivymd.uix.dialog import MDDialog
 from kivymd.uix.screen import MDScreen
 from kivy.lang import Builder
-from gui.popups.popups import DualRowPopup, QuitPopup, TwoActionPopup
 from lib.com import ComSuperClass
 import platform

@@ -10,62 +12,113 @@ information = {
    "Windows": {
        "2": "Un- and replug the cable and ensure you have the required driver(s) installed",
        "13": "You are probably missing a required driver or your cable doesn't work. Consult the wiki for more information",
-        "NO_COM": "Could not find a microcontroller. Please ensure you have one connected and the required driver(s) installed"
+        "NO_COM": "Could not find a microcontroller. Please ensure you have one connected and the required driver(s) installed",
    },
    "Linux": {
        "2": "Un- and replug the cable, or if you haven't plugged a controller in yet, do that",
        "13": "Incorrect permissions at /dev/ttyUSB0. Open a terminal and type: sudo chmod 777 /dev/ttyUSB0",
-        "NO_COM": "Could not find a microcontroller. Please ensure you have one connected"
-    }
+        "NO_COM": "Could not find a microcontroller. Please ensure you have one connected",
+    },
 }


 # This is the launch screen, i.e. what you see when you start up the app
 class HomeScreen(MDScreen):
    def __init__(self, com: ComSuperClass, **kw):
-        self._com = com;
+        self._com = com
+        self.connection_error_dialog = MDDialog(
+            title="Connection",
+            text="Failed to connect. See Details for more information and troubleshooting guide",
+            buttons=[
+                MDFlatButton(
+                    text="Cancel",
+                    on_release=lambda _: self.connection_error_dialog.dismiss(),
+                ),
+                MDFlatButton(
+                    text="Details", on_release=lambda _: self.open_details_popup()
+                ),
+            ],
+        )
+
+        self.quit_dialog = MDDialog(
+            title="Exit BiogasControllerApp",
+            text="Do you really want to exit BiogasControllerApp?",
+            buttons=[
+                MDFlatButton(
+                    text="Cancel",
+                    on_release=lambda _: self.quit_dialog.dismiss(),
+                ),
+                MDFlatButton(
+                    text="Quit", on_release=lambda _: self._quit()
+                ),
+            ],
+        )
        super().__init__(**kw)

+    def _quit(self):
+        self._com.close()
+        MDApp.get_running_app().stop()
+
    # Go to the main screen if we can establish connection or the check was disabled
    # in the configs
    def start(self):
        if self._com.connect():
-            self.manager.current = 'main'
-            self.manager.transition.direction = 'right'
+            self.manager.current = "main"
+            self.manager.transition.direction = "right"
        else:
-            TwoActionPopup().open('Failed to connect', 'Details', self.open_details_popup)
-            print('ERROR connecting')
+            self.connection_error_dialog.open()
+            print("[ COM ] Connection failed!")

    # Open popup for details as to why the connection failed
    def open_details_popup(self):
-        DualRowPopup().open("Troubleshooting tips", self._generate_help())
+        self.connection_error_dialog.dismiss()
+        self.details_dialog = MDDialog(
+            title="Troubleshooting",
+            text=self._generate_help(),
+            buttons=[
+                MDFlatButton(
+                    text="Ok", on_release=lambda _: self.details_dialog.dismiss()
+                )
+            ],
+        )
+        self.details_dialog.open()

    def _generate_help(self) -> str:
        operating_system = platform.system()
        if operating_system == "Windows" or operating_system == "Linux":
-            port = self._com.get_comport();
-            information["Linux"]["13"] = f"Incorrect permissions at {port}. Resolve by running 'sudo chmod 777 {port}'"
+            port = self._com.get_comport()
+            if port == "Sim":
+                return "Running in simulator, so this error is just simulated"
+
+            information["Linux"][
+                "13"
+            ] = f"Incorrect permissions at {port}. Resolve by running 'sudo chmod 777 {port}'"
+
+
            if port == "":
                return information[operating_system]["NO_COM"]
+
            err = self._com.get_error()
            if err != None:
                return information[operating_system][str(err.errno)]
            else:
                return "No error message available"
        else:
-            return "You are running on an unsupported Operating System. No help available"
+            return (
+                "You are running on an unsupported Operating System. No help available"
+            )

    # Helper to open a Popup to ask user whether to quit or not
    def quit(self):
-        QuitPopup(self._com).open()
+        self.quit_dialog.open()

    # Switch to about screen
    def to_about(self):
-        self.manager.current = 'about'
-        self.manager.transition.direction = 'down'
+        self.manager.current = "about"
+        self.manager.transition.direction = "down"


 # Load the design file for this screen (.kv files)
 # The path has to be relative to root of the app, i.e. where the biogascontrollerapp.py
 # file is located
-Builder.load_file('./gui/home/home.kv')
+Builder.load_file("./gui/home/home.kv")
--- a/gui/main/main.kv
+++ b/gui/main/main.kv
@@ -1,101 +1,124 @@
 <MainScreen>:
    on_pre_enter: root.reset()
    name: "main"
-    canvas.before:
-        Color:
-            rgba: (10,10,10,0.1)
-        Rectangle:
-            size: self.size
-            pos: self.pos
-    GridLayout:
-    FloatLayout:
-        Label:
-            pos_hint: {"y":0.4}
+    MDFloatLayout:
+        MDGridLayout:
+            cols: 1
+            pos_hint: {'x': 0, 'y': 0.4}
+            MDLabel:
                text: "READOUT"
                font_size: 40
-            color: (0, 113, 0, 1)
+                halign: 'center'
+                valign: 'center'
+                pos_hint: {'center_x': 0, 'center_y': 0}
                bold: True
-        GridLayout:
+
+        MDGridLayout:
            cols:4
            size_hint: 0.8, 0.3
            pos_hint: {"x":0.1, "y":0.4}
-            Label:
+            MDLabel:
                text: "Sensor 1: "
                font_size: 20
-            Label:
+            MDLabel:
                id: sensor1
                text: ""
                size_hint: 1, 1
                halign: 'left'
                text_size: self.size
-            Label:
+            MDLabel:
                text: "Sensor 2: "
                font_size: 20
-            Label:
+            MDLabel:
                id: sensor2
                text: ""
                size_hint: 1, 1
                halign: 'left'
                text_size: self.size
-            Label:
+            MDLabel:
                text: "Sensor 3: "
                font_size: 20
-            Label:
+            MDLabel:
                id: sensor3
                text: ""
                size_hint: 1, 1
                halign: 'left'
                text_size: self.size
-            Label:
+            MDLabel:
                text: "Sensor 4: "
                font_size: 20
-            Label:
+            MDLabel:
                id: sensor4
                text: ""
                size_hint: 1, 1
                halign: 'left'
                text_size: self.size
-        Button:
+        MDFillRoundFlatButton:
            text: "Connect"
-            size_hint: 0.2, 0.1
-            pos_hint: {"x": 0.5, "y": 0.05}
-            background_color: (255, 0, 0, 0.6)
+            size_hint: 0.15, 0.09
+            pos_hint: {"x": 0.03, "y": 0.05}
            on_release:
                root.start()
-        Button:
+
+        MDFillRoundFlatButton:
            text: "Disconnect"
-            size_hint: 0.2, 0.1
-            pos_hint: {"x": 0.7, "y": 0.05}
-            background_color: (255, 0, 0, 0.6)
+            size_hint: 0.15, 0.09
+            pos_hint: {"x": 0.2, "y": 0.05}
            on_release:
                root.end()
-        Button:
+
+        MDFillRoundFlatButton:
            text: "Back"
-            size_hint: 0.3, 0.1
-            pos_hint: {"x":0.05, "y":0.05}
-            background_color: (255, 0, 0, 0.6)
+            size_hint: 0.15, 0.09
+            pos_hint: {"right": 0.95, "y":0.05}
+            md_bg_color: app.theme_cls.primary_dark
            on_release:
                root.end()
                app.root.current = "home"
                root.manager.transition.direction = "left"
-        ToggleButton:
+
+        MDGridLayout:
+            cols: 2
+            size_hint: 0.15, 0.1
+            pos_hint: {"x":0.1, "y":0.15}
+            MDLabel:
+                text: "Fast Mode"
+                valign: "center"
+            MDSwitch:
                id: mode_selector
-            size_hint: 0.15, 0.1
-            pos_hint: {"x":0.1, "y":0.2}
-            text: "Normal Mode" if self.state == "normal" else "Fast Mode"
-            on_text: root.switch_mode(mode_selector.text)
-            background_color: (255,0,0,0.6) if self.state == "normal" else (0,0,255,0.6)
-        Button:
+                on_active: root.switch_mode()
+                icon_active: "check"
+
+        MDFillRoundFlatButton:
            text: "Configuration"
-            size_hint: 0.15, 0.1
-            pos_hint: {"x":0.7, "y":0.2}
-            background_color: (255, 0, 0, 0.6)
+            size_hint: 0.1, 0.07
+            pos_hint: {"x":0.45, "y":0.06}
+            md_bg_color: app.theme_cls.accent_dark
            on_release:
                root.end()
                app.root.current = "program"
                root.manager.transition.direction = "down"
-        Label:
+
+        MDGridLayout:
+            size_hint: 0.2, None
+            spacing: 0
+            padding: 0
+            cols: 1
+            pos_hint: {'right': 0.95, 'top': 0.95}
+            MDLabel:
                id: status
                text: "Status will appear here"
                font_size: 10
-            pos_hint: {"x":0.4, "y": 0.3}
+                halign: 'right'
+
+        MDGridLayout:
+            size_hint: None, None
+            spacing: 0
+            padding: 0
+            cols: 1
+            pos_hint: {'right': 0.95, 'top': 0.925}
+            MDLabel:
+                id: port
+                text: "Port: Not connected"
+                font_size: 10
+                halign: 'right'
--- a/gui/main/main.py
+++ b/gui/main/main.py
@@ -3,8 +3,9 @@ from time import time
 from typing import List, override
 from kivymd.uix.screen import MDScreen
 from kivy.lang import Builder
-from gui.popups.popups import SingleRowPopup, TwoActionPopup, empty_func
 from kivy.clock import Clock, ClockEvent
+from kivymd.uix.button import MDFlatButton
+from kivymd.uix.dialog import MDDialog
 import queue
 import threading

@@ -53,7 +54,7 @@ class ReaderThread(threading.Thread):
        # Hook to output stream
        if self._instructions.hook_main():
            # We are now hooked to the stream (i.e. data is synced)
-            synced_queue.put(["HOOK"])
+            synced_queue.put(["HOOK", self._com.get_comport()])

            # making it exit using the stop function
            while self._run:
@@ -70,6 +71,7 @@ class ReaderThread(threading.Thread):
                for i in range(4):
                    # The slicing that happens here uses offsets automatically calculated from the sensor id
                    # This allows for short code
+                    try:
                        data.append(
                            f"Tadc: {
                                self._decoder.decode_int(received[12 * i:12 * i + 4])
@@ -79,8 +81,12 @@ class ReaderThread(threading.Thread):
                                round((self._decoder.decode_float_long(received[48 + 5 * i: 52 + 5 * i]) / 65535.0 * 100) * 1000) / 1000
                            }%"
                        )
+                    except:
+                        data.append("Bad data")
                # Calculate the frequency of updates
-                data.append(str(round((1 / (time() - start_time)) * 1000) / 1000) + " Hz")
+                data.append(
+                    str(round((1 / (time() - start_time)) * 1000) / 1000) + " Hz"
+                )
                synced_queue.put(data)
        else:
            # Send error message to the UI updater
@@ -104,6 +110,30 @@ class MainScreen(MDScreen):
        # Set some variables
        self._com = com
        self._event = None
+        self._fast_mode = False
+
+        self.connection_error_dialog = MDDialog(
+            title="Connection",
+            text="Failed to connect. Do you wish to retry?",
+            buttons=[
+                MDFlatButton(
+                    text="Cancel",
+                    on_release=lambda _: self.connection_error_dialog.dismiss(),
+                ),
+                MDFlatButton(text="Retry", on_release=lambda _: self.start()),
+            ],
+        )
+
+        self.mode_switch_error_dialog = MDDialog(
+            title="Mode Switch",
+            text="Failed to change mode. Please try again",
+            buttons=[
+                MDFlatButton(
+                    text="Ok",
+                    on_release=lambda _: self.mode_switch_error_dialog.dismiss(),
+                ),
+            ],
+        )

        # Prepare the reader thread
        self._prepare_reader()
@@ -115,36 +145,31 @@ class MainScreen(MDScreen):

    def _prepare_reader(self):
        self._reader = ReaderThread()
-        self._reader.setDaemon(True)
+        self._reader.daemon = True
        self._reader.set_com(self._com)

    # Start the connection to the micro-controller to read data from it.
    # This also now starts the reader thread to continuously read out data
    def start(self):
        # Prevent running multiple times
+        self.connection_error_dialog.dismiss()
        if self._has_connected:
            return

        self.ids.status.text = "Connecting..."
        if self._com.connect():
-            print("Acquired connection")
+            print("[ COM ] Connection Acquired")
            self._has_connected = True
            self._has_run = True
            if self._has_run:
                self._prepare_reader()
            # Start communication
            self._reader.start()
-            print("Reader has started")
+            print("[ COM ] Reader has started")
            self._event = Clock.schedule_interval(self._update_screen, 0.5)
        else:
            self.ids.status.text = "Connection failed"
-            TwoActionPopup().open(
-                "Failed to connect. Do you want to retry?",
-                "Cancel",
-                empty_func,
-                "Retry",
-                self.start,
-            )
+            self.connection_error_dialog.open()

    # End connection to micro-controller and set it back to normal mode
    def end(self, set_msg: bool = True):
@@ -166,10 +191,12 @@ class MainScreen(MDScreen):
            self._com.close()
            if set_msg:
                self.ids.status.text = "Connection terminated"
+                self.ids.port.text = "Port: Not connected"
+            self._has_connected = False
            print("Connection terminated")

    # A helper function to update the screen. Is called on an interval
-    def _update_screen(self, dt):
+    def _update_screen(self, _):
        update = []
        try:
            update = synced_queue.get_nowait()
@@ -182,8 +209,10 @@ class MainScreen(MDScreen):
            if update[0] == "ERR_HOOK":
                self.ids.status.text = "Hook failed"
                self.end(False)
-            elif update[0] == "HOOK":
+        if len(update) == 2:
+            if update[0] == "HOOK":
                self.ids.status.text = "Connected to controller"
+                self.ids.port.text = "Port: " + update[1]
        else:
            self.ids.sensor1.text = update[0]
            self.ids.sensor2.text = update[1]
@@ -198,9 +227,10 @@ class MainScreen(MDScreen):
        self.ids.sensor3.text = ""
        self.ids.sensor4.text = ""
        self.ids.status.text = "Status will appear here"
+        self.ids.port.text = "Port: Not connected"

    # Switch the mode for the micro-controller
-    def switch_mode(self, new_mode: str):
+    def switch_mode(self):
        # Store if we have been connected to the micro-controller before mode was switched
        was_connected = self._has_connected

@@ -210,12 +240,12 @@ class MainScreen(MDScreen):

        # Try to set the new mode
        try:
-            if new_mode == "Normal Mode":
+            if self._fast_mode:
                self._com.send("NM")
            else:
                self._com.send("FM")
        except:
-            SingleRowPopup().open("Failed to switch modes")
+            self.mode_switch_error_dialog.open()
            return

        self.ids.status.text = "Mode set"
--- a/gui/popups/popups.kv
+++ b/gui/popups/popups.kv
@@ -1,111 +0,0 @@
-<QuitPopup>:
-    title: "BiogasControllerApp"
-    font_size: 50
-    size_hint: 0.5, 0.4
-    auto_dismiss: False
-    GridLayout:
-        cols: 1
-        Label:
-            text: "Are you sure you want to leave?"
-            font_size: 20
-        GridLayout:
-            cols:2
-            Button:
-                text: "Yes"
-                font_size: 15
-                on_release:
-                    root.quit()
-                    app.stop()
-            Button:
-                text: "No"
-                font_size: 15
-                on_press:
-                    root.dismiss()
-
-<SingleRowPopup>:
-    title: "INFORMATION"
-    size_hint: 0.7, 0.5
-    auto_dismiss: True
-    GridLayout:
-        cols: 1
-        Label:
-            id: msg
-            text: "Message"
-            text_size: self.width, None
-            halign: 'center'
-        GridLayout:
-            cols: 1
-            Button:
-                text: "Ok"
-                on_release:
-                    root.dismiss()
-
-<TwoActionPopup>:
-    title: "WARNING!"
-    font_size: 50
-    size_hint: 0.5, 0.4
-    auto_dismiss: False
-    GridLayout:
-        cols:1
-        Label:
-            id: msg
-            text: "Message"
-            font_size: 20
-            halign: 'center'
-        GridLayout:
-            cols:2
-            Button:
-                id: btn1
-                text: "Details"
-                on_release:
-                    root.action_one()
-                    root.dismiss()
-            Button:
-                id: btn2
-                text:"Ok"
-                on_release:
-                    root.action_two()
-                    root.dismiss()
-
-<DualRowPopup>:
-    title: "Details"
-    font_size: 50
-    size_hint: 0.7, 0.6
-    auto_dismiss: False
-    GridLayout:
-        cols:1
-        Label:
-            id: msg_title
-            text: "Message title"
-            font_size: 20
-        Label:
-            id: msg_body
-            text: "Message body"
-            font_size: 14
-        Button:
-            text:"Ok"
-            on_release:
-                root.dismiss()
-
-<LargeTrippleRowPopUp>:
-    title: "DETAILS"
-    font_size: 50
-    size_hint: 1, 0.7
-    auto_dismiss: False
-    GridLayout:
-        cols: 1
-        Label:
-            id: msg_title
-            text: "title"
-            font_size: 20
-        Label:
-            id: msg_body
-            text: "Message"
-            font_size: 13
-        Label:
-            text: msg_extra
-            font_size: 13
-        Button:
-            text:"Ok"
-            on_release:
-                root.dismiss()
--- a/gui/popups/popups.py
+++ b/gui/popups/popups.py
@@ -1,63 +0,0 @@
-from typing import Callable
-from kivy.uix.popup import Popup
-from kivy.lang import Builder
-
-from lib.com import ComSuperClass
-
-
-# Just an empty function
-def empty_func():
-    pass
-
-#          ╭────────────────────────────────────────────────╮
-#          │                     Popups                     │
-#          ╰────────────────────────────────────────────────╯
-# Below, you can find various popups with various designs that can be used in the app
-class QuitPopup(Popup):
-    def __init__(self, com: ComSuperClass, **kw):
-        self._com = com;
-        super().__init__(**kw)
-
-    def quit(self):
-        self._com.close()
-
-class SingleRowPopup(Popup):
-    def open(self, message, *_args, **kwargs):
-        self.ids.msg.text = message
-        return super().open(*_args, **kwargs)
-
-class DualRowPopup(Popup):
-    def open(self, title: str, message: str, *_args, **kwargs):
-        self.ids.msg_title.text = title
-        self.ids.msg_body.text = message
-        return super().open(*_args, **kwargs)
-
-class LargeTrippleRowPopup(Popup):
-    def open(self, title: str, message: str, details: str, *_args, **kwargs):
-        self.ids.msg_title.text = title
-        self.ids.msg_body.text = message
-        self.ids.msg_extra.text = details
-        return super().open(*_args, **kwargs)
-
-class TwoActionPopup(Popup):
-    def open(self, 
-             message: str,
-             button_one: str,
-             action_one: Callable[[], None],
-             button_two: str = 'Ok',
-             action_two: Callable[[], None] = empty_func,
-             *_args,
-             **kwargs
-        ):
-        self.ids.msg.text = message
-        self.ids.btn1.text = button_one
-        self.ids.btn2.text = button_two
-        self.action_one = action_one
-        self.action_two = action_two
-        return super().open(*_args, **kwargs)
-
-
-# Load the design file for this screen (.kv files)
-# The path has to be relative to root of the app, i.e. where the biogascontrollerapp.py 
-# file is located
-Builder.load_file('./gui/popups/popups.kv')
--- a/gui/program/program.kv
+++ b/gui/program/program.kv
@@ -1,126 +1,123 @@
 <ProgramScreen>:
    name: "program"
    on_enter: self.config_loader = root.load_config()
-    md_bg_color: app.theme_cls.primary_color
    FloatLayout:
-        Label:
+        MDGridLayout:
+            cols: 1
+            pos_hint: {'x': 0, 'y': 0.4}
+            MDLabel:
                text: "Configuration"
                font_size: 40
-            color: (0, 113, 0, 1)
+                halign: 'center'
+                valign: 'center'
+                pos_hint: {'center_x': 0, 'center_y': 0}
                bold: True
-            pos_hint: {"y":0.4}
-        GridLayout:
-            size_hint: 0.8, 0.5
-            pos_hint: {"x":0.1, "y":0.2}
+
+        MDGridLayout:
+            cols: 1
+            pos_hint: {'x': 0, 'y': 0.33}
+            MDLabel:
+                text: "Change the configuration of the microcontroller"
+                font_size: 18
+                halign: 'center'
+                valign: 'center'
+                pos_hint: {'center_x': 0, 'center_y': 0}
+                italic: True
+
+        MDGridLayout:
+            cols: 1
+            pos_hint: {'x': 0, 'y': 0.25}
+            MDLabel:
+                id: status
+                text: "Loading..."
+                font_size: 17
+                halign: 'center'
+                bold: True
+
+        MDGridLayout:
+            size_hint: 0.9, 0.5
+            spacing: 10
+            pos_hint: {"x":0.05, "y":0.2}
            cols: 4
-            Label:
-                text: "Sensor 1, a:"
-            TextInput:
+            MDTextField:
                id: s1_a
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 1, b:"
-            TextInput:
+                hint_text: 'Sensor 1 a'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s1_b
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 1, c:"
-            TextInput:
+                hint_text: 'Sensor 1 b'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s1_c
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 1, Temp:"
-            TextInput:
+                hint_text: 'Sensor 1 c'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s1_t
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 2, a:"
-            TextInput:
+                hint_text: 'Sensor 1 Temperature'
+                on_text: root.validate_float(self)
+
+            MDTextField:
                id: s2_a
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 2, b:"
-            TextInput:
+                hint_text: 'Sensor 2 a'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s2_b
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 2, c:"
-            TextInput:
+                hint_text: 'Sensor 2 b'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s2_c
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 2, Temp:"
-            TextInput:
+                hint_text: 'Sensor 2 c'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s2_t
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 3, a:"
-            TextInput:
+                hint_text: 'Sensor 2 Temperature'
+                on_text: root.validate_float(self)
+                
+            MDTextField:
                id: s3_a
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 3, b:"
-            TextInput:
+                hint_text: 'Sensor 3 a'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s3_b
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 3, c:"
-            TextInput:
+                hint_text: 'Sensor 3 b'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s3_c
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 3, Temp:"
-            TextInput:
+                hint_text: 'Sensor 3 c'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s3_t
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 4, a:"
-            TextInput:
+                hint_text: 'Sensor 3 Temperature'
+                on_text: root.validate_float(self)
+
+            MDTextField:
                id: s4_a
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 4, b:"
-            TextInput:
+                hint_text: 'Sensor 4 a'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s4_b
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 4, c:"
-            TextInput:
+                hint_text: 'Sensor 4 b'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s4_c
-                multiline: False
-                input_filter: "float"
-            Label:
-                text: "Sensor 4, Temp:"
-            TextInput:
+                hint_text: 'Sensor 4 c'
+                on_text: root.validate_float(self)
+            MDTextField:
                id: s4_t
-                multiline: False
-                input_filter: "float"
-        Button:
+                hint_text: 'Sensor 4 Temperature'
+                on_text: root.validate_float(self)
+
+        MDFillRoundFlatButton:
+            size_hint: 0.1, 0.07
            text: "Back"
-            size_hint: 0.1, 0.1
            pos_hint: {"x":0.1, "y":0.1}
            background_color: (255, 0, 0, 0.6)
            on_release:
                app.root.current = "main"
                root.manager.transition.direction = "up"
-        Button:
+        MDFillRoundFlatButton:
+            size_hint: 0.15, 0.09
            text: "Save"
-            size_hint: 0.2, 0.1
            pos_hint: {"x":0.6, "y":0.1}
-            background_color: (255, 0, 0, 0.6)
            on_release:
                root.save()
--- a/gui/program/program.py
+++ b/gui/program/program.py
@@ -3,7 +3,8 @@ from kivymd.uix.screen import MDScreen
 from kivy.lang import Builder
 from lib.decoder import Decoder
 from lib.instructions import Instructions
-from gui.popups.popups import SingleRowPopup, TwoActionPopup, empty_func
+from kivymd.uix.button import MDFlatButton
+from kivymd.uix.dialog import MDDialog
 from lib.com import ComSuperClass
 from kivy.clock import Clock

@@ -18,13 +19,60 @@ class ProgramScreen(MDScreen):
        self._com = com
        self._instructions = Instructions(com)
        self._decoder = Decoder()
+
+        self.connection_error_dialog = MDDialog(
+            title="Connection",
+            text="Failed to connect. Do you wish to retry?",
+            buttons=[
+                MDFlatButton(
+                    text="Cancel",
+                    on_release=lambda dt: self.connection_error_dialog.dismiss(),
+                ),
+                MDFlatButton(text="Retry", on_release=lambda dt: self._load()),
+            ],
+        )
+
+        self.missing_fields_error_dialog = MDDialog(
+            title="Save",
+            text="Some fields are missing entries. Please fill them out and try again",
+            buttons=[
+                MDFlatButton(
+                    text="Ok",
+                    on_release=lambda dt: self.missing_fields_error_dialog.dismiss(),
+                ),
+            ],
+        )
+
+        self.save_error_dialog = MDDialog(
+            title="Save",
+            text="Failed to save data. Please try again",
+            buttons=[
+                MDFlatButton(
+                    text="Ok",
+                    on_release=lambda dt: self.save_error_dialog.dismiss(),
+                ),
+            ],
+        )
+
+        self.save_success_dialog = MDDialog(
+            title="Save",
+            text="Data saved successfully!",
+            buttons=[
+                MDFlatButton(
+                    text="Ok",
+                    on_release=lambda dt: self.save_success_dialog.dismiss(),
+                ),
+            ],
+        )
+
        super().__init__(**kw)

    def load_config(self):
-        Clock.schedule_once(self._load)
+        Clock.schedule_once(lambda dt: self._load())

    # Load the current configuration from the micro-controller
-    def _load(self, dt: float):
+    def _load(self):
+        self.ids.status.text = "Loading..."
        # Hook to the microcontroller's data stream (i.e. sync up with it)
        if self._instructions.hook("RD", ["\n", "R", "D", "\n"]):
            config: List[List[str]] = []
@@ -37,13 +85,7 @@ class ProgramScreen(MDScreen):
                    received = self._com.receive(28)
                except:
                    # Open error popup
-                    TwoActionPopup().open(
-                        "Failed to connect to micro-controller, retry?",
-                        "Cancel",
-                        empty_func,
-                        "Retry",
-                        lambda: self._load(0),
-                    )
+                    self.connection_error_dialog.open()
                    return

                # Create a list of strings to store the config for the sensor
@@ -58,16 +100,11 @@ class ProgramScreen(MDScreen):

                # Add it to the config
                config.append(config_sensor_i)
+                self.ids.status.text = ""

            self._set_ui(config)
        else:
-            TwoActionPopup().open(
-                "Failed to connect to micro-controller, retry?",
-                "Cancel",
-                empty_func,
-                "Retry",
-                lambda: self._load(0),
-            )
+            self.connection_error_dialog.open()

    # Set the elements of the UI to the values of the config
    def _set_ui(self, config: List[List[str]]):
@@ -96,16 +133,37 @@ class ProgramScreen(MDScreen):

    # Transmit the changed data to the micro-controller to reconfigure it
    def save(self):
+        self.ids.status.text = "Saving..."
        data = self._read_ui()
        if data == None:
-            SingleRowPopup().open("Some fields are missing values!")
+            self.missing_fields_error_dialog()
        else:
            try:
                self._instructions.change_config(data)
            except Exception as e:
-                SingleRowPopup().open("Could not save data!")
+                self.save_error_dialog.open()
                return
-            SingleRowPopup().open("Data saved successfully")
+            self.save_success_dialog.open()
+            self.ids.status.text = "Saved!"
+            Clock.schedule_once(self.reset_update, 5)
+
+    def reset_update(self, dt):
+        self.ids.status.text = ""
+
+    def validate_float(self, instance):
+        text = instance.text
+
+        # Allow only digits and one dot
+        if text.count(".") > 1 or any(c not in "0123456789." for c in text):
+            # Remove invalid characters
+            clean_text = "".join(c for c in text if c in "0123456789.")
+            # Remove extra dots
+            if clean_text.count(".") > 1:
+                first_dot = clean_text.find(".")
+                clean_text = clean_text[: first_dot + 1] + clean_text[
+                    first_dot + 1 :
+                ].replace(".", "")
+            instance.text = clean_text


 # Load the design file for this screen (.kv files)
--- a/lib/com.py
+++ b/lib/com.py
@@ -6,15 +6,22 @@ import serial.tools.list_ports


 class ComSuperClass(ABC):
-    def __init__(self, baudrate: Optional[int] = 19200, filters: Optional[list[str]] = None) -> None:
+    def __init__(
+        self, baudrate: Optional[int] = 19200, filters: Optional[list[str]] = None
+    ) -> None:
        self._serial: Optional[serial.Serial] = None
-        self._filters = filters if filters != None else [ 'USB-Serial Controller', 'Prolific USB-Serial Controller' ]
-        self._port_override = ''
+        self._filters = (
+            filters
+            if filters != None
+            else ["USB-Serial Controller", "Prolific USB-Serial Controller"]
+        )
+        self._port_override = ""
        self._baudrate = baudrate if baudrate != None else 19200
        self._err = None

    def set_port_override(self, override: str) -> None:
        """Set the port override, to disable port search"""
+        if override != "" and override != "None":
            self._port_override = override

    def get_error(self) -> serial.SerialException | None:
@@ -58,7 +65,7 @@ class Com(ComSuperClass):

    def get_comport(self) -> str:
        """Find the comport the microcontroller has attached to"""
-        if self._port_override != '':
+        if self._port_override != "":
            return self._port_override

        # Catch all errors and simply return an empty string if search unsuccessful
@@ -80,7 +87,7 @@ class Com(ComSuperClass):
        comport = self.get_comport()

        # Comport search returns empty string if search unsuccessful
-        if comport == '':
+        if comport == "":
            try:
                self._serial = serial.Serial(comport, self._baudrate, timeout=5)
            except serial.SerialException as e:
@@ -108,7 +115,7 @@ class Com(ComSuperClass):
        if self._serial != None:
            return self._serial.read(byte_count)
        else:
-            raise Exception('ERR_CONNECTING')
+            raise Exception("ERR_CONNECTING")

    def send(self, msg: str) -> None:
        """Send a string over serial connection. Will open a connection if none is available"""
@@ -116,12 +123,12 @@ class Com(ComSuperClass):
        if self._serial != None:
            self._serial.write(msg.encode())
        else:
-            raise Exception('ERR_CONNECTING')
+            raise Exception("ERR_CONNECTING")

    def send_float(self, msg: float) -> None:
        """Send a float number over serial connection"""
        self._connection_check()
        if self._serial != None:
-            self._serial.write(bytearray(struct.pack('>f', msg))[0:3])
+            self._serial.write(bytearray(struct.pack(">f", msg))[0:3])
        else:
-            raise Exception('ERR_CONNECTING')
+            raise Exception("ERR_CONNECTING")
--- a/lib/instructions.py
+++ b/lib/instructions.py
@@ -12,10 +12,6 @@ class Instructions:
    def __init__(self, com: ComSuperClass) -> None:
        self._com = com

-    # Set a port override (to use a specific COM port)
-    def set_port_override(self, override: str) -> None:
-        self._com.set_port_override(override)
-
    # Helper method to hook to the data stream according to protocol.
    # You can specify the sequence that the program listens to to sync up,
    # as an array of strings, that should each be of length one and only contain
--- a/lib/test/com.py
+++ b/lib/test/com.py
@@ -50,7 +50,7 @@ class SensorConfig:

 class Com(ComSuperClass):
    def __init__(
-        self, baudrate: int = 19200, filters: Optional[list[str]] = None
+        self, fail_sim: int, baudrate: int = 19200, filters: Optional[list[str]] = None
    ) -> None:
        # Calling the constructor of the super class to assign defaults
        print("\n\nWARNING: Using testing library for communication!\n\n")
@@ -62,6 +62,7 @@ class Com(ComSuperClass):

        self.__reconf_sensor = 0
        self.__reconf_step = 0
+        self.__fail_sim = fail_sim

        self.__config: List[SensorConfig] = [
            SensorConfig(),
@@ -78,11 +79,11 @@ class Com(ComSuperClass):
        self._port_override = override

    def get_comport(self) -> str:
-        return "test" if self._port_override != "" else self._port_override
+        return "Sim" if self._port_override == "" else self._port_override

    def connect(self) -> bool:
-        # Randomly return false in 1 in 20 ish cases
-        if random.randint(0, 20) == 1:
+        # Randomly return false in 1 in fail_sim ish cases
+        if random.randint(0, self.__fail_sim) == 0:
            print("Simulating error to connect")
            return False
        return True