Sample Arduino and Flutter code.

ShenPaul · Jan 21, 2023 · 3a12a1b · 3a12a1b
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diff --git a/LED_test/LED_test.ino b/LED_test/LED_test.ino
@@ -0,0 +1,89 @@
+/*
+  LED
+
+  This example creates a Bluetooth® Low Energy peripheral with service that contains a
+  characteristic to control an LED.
+
+  The circuit:
+  - Arduino MKR WiFi 1010, Arduino Uno WiFi Rev2 board, Arduino Nano 33 IoT,
+    Arduino Nano 33 BLE, or Arduino Nano 33 BLE Sense board.
+
+  You can use a generic Bluetooth® Low Energy central app, like LightBlue (iOS and Android) or
+  nRF Connect (Android), to interact with the services and characteristics
+  created in this sketch.
+
+  This example code is in the public domain.
+*/
+
+#include <ArduinoBLE.h>
+
+BLEService ledService("19B10000-E8F2-537E-4F6C-D104768A1214"); // Bluetooth® Low Energy LED Service
+
+// Bluetooth® Low Energy LED Switch Characteristic - custom 128-bit UUID, read and writable by central
+BLEByteCharacteristic switchCharacteristic("19B10001-E8F2-537E-4F6C-D104768A1214", BLERead | BLEWrite);
+
+const int ledPin = LED_BUILTIN; // pin to use for the LED
+
+void setup() {
+  Serial.begin(9600);
+  while (!Serial);
+
+  // set LED pin to output mode
+  pinMode(ledPin, OUTPUT);
+
+  // begin initialization
+  if (!BLE.begin()) {
+    Serial.println("starting Bluetooth® Low Energy module failed!");
+
+    while (1);
+  }
+
+  // set advertised local name and service UUID:
+  BLE.setLocalName("LED");
+  BLE.setAdvertisedService(ledService);
+
+  // add the characteristic to the service
+  ledService.addCharacteristic(switchCharacteristic);
+
+  // add service
+  BLE.addService(ledService);
+
+  // set the initial value for the characeristic:
+  switchCharacteristic.writeValue(0);
+
+  // start advertising
+  BLE.advertise();
+
+  Serial.println("BLE LED Peripheral");
+}
+
+void loop() {
+  // listen for Bluetooth® Low Energy peripherals to connect:
+  BLEDevice central = BLE.central();
+
+  // if a central is connected to peripheral:
+  if (central) {
+    Serial.print("Connected to central: ");
+    // print the central's MAC address:
+    Serial.println(central.address());
+
+    // while the central is still connected to peripheral:
+    while (central.connected()) {
+      // if the remote device wrote to the characteristic,
+      // use the value to control the LED:
+      if (switchCharacteristic.written()) {
+        if (switchCharacteristic.value()) {   // any value other than 0
+          Serial.println("LED on");
+          digitalWrite(ledPin, HIGH);         // will turn the LED on
+        } else {                              // a 0 value
+          Serial.println(F("LED off"));
+          digitalWrite(ledPin, LOW);          // will turn the LED off
+        }
+      }
+    }
+
+    // when the central disconnects, print it out:
+    Serial.print(F("Disconnected from central: "));
+    Serial.println(central.address());
+  }
+}
diff --git a/LED_test/sketch.json b/LED_test/sketch.json
@@ -0,0 +1,9 @@
+{
+  "cpu": {
+    "fqbn": "",
+    "name": "",
+    "type": ""
+  },
+  "secrets": [],
+  "included_libs": []
+}
diff --git a/README.md b/README.md
@@ -1 +1,12 @@
-# SWEATsens
+# SWEATsens
+
+2023 NE FYDP Group 13
+
+Contains Arduino Code for the board and the Flutter app for communicating with the board.
+
+Currently contains code from:
+
+https://github.com/lupyuen/flutter-blue-sample
+https://github.com/lmarceau/flutter-bluetooth
+
+as well as Arduino examples.
diff --git a/flutter-blue-sample-master/.gitignore b/flutter-blue-sample-master/.gitignore
@@ -0,0 +1,37 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Exceptions to above rules.
+!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages
diff --git a/flutter-blue-sample-master/README.md b/flutter-blue-sample-master/README.md
@@ -0,0 +1,9 @@
+# flutter-blue-sample
+
+Sample Flutter App for Android and iOS that scans for Bluetooth LE devices and displays the services published by the devices.
+
+Based on https://github.com/pauldemarco/flutter_blue/tree/master/example
+
+Read the article...
+
+[_"Your First Bluetooth Low Energy App with Flutter"_](https://lupyuen.github.io/pinetime-rust-mynewt/articles/flutter)
diff --git a/flutter-blue-sample-master/android/.gitignore b/flutter-blue-sample-master/android/.gitignore
@@ -0,0 +1,7 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
diff --git a/flutter-blue-sample-master/android/app/build.gradle b/flutter-blue-sample-master/android/app/build.gradle
@@ -0,0 +1,60 @@
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 29
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        applicationId "com.pauldemarco.flutter_blue_example"
+        minSdkVersion 19
+        targetSdkVersion 29
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+}
diff --git a/...ndroid/app/src/androidTest/java/com/pauldemarco/flutter_blue/EmbeddingV1ActivityTest.java b/...ndroid/app/src/androidTest/java/com/pauldemarco/flutter_blue/EmbeddingV1ActivityTest.java
@@ -0,0 +1,14 @@
+ package io.flutter.plugins.firebase.core;
+
+ import androidx.test.rule.ActivityTestRule;
+ import dev.flutter.plugins.e2e.FlutterRunner;
+ import com.pauldemarco.flutter_blue_example.EmbeddingV1Activity;
+ import org.junit.Rule;
+ import org.junit.runner.RunWith;
+
+ @RunWith(FlutterRunner.class)
+ public class EmbeddingV1ActivityTest {
+   @Rule
+   public ActivityTestRule<EmbeddingV1Activity> rule =
+       new ActivityTestRule<>(EmbeddingV1Activity.class);
+ }
diff --git a/...er/android/app/src/androidTest/java/com/pauldemarco/flutter_blue/FlutterActivityTest.java b/...er/android/app/src/androidTest/java/com/pauldemarco/flutter_blue/FlutterActivityTest.java
@@ -0,0 +1,12 @@
+ package io.flutter.plugins.firebase.core;
+
+ import androidx.test.rule.ActivityTestRule;
+ import dev.flutter.plugins.e2e.FlutterRunner;
+ import org.junit.Rule;
+ import org.junit.runner.RunWith;
+
+ @RunWith(FlutterRunner.class)
+ public class FlutterActivityTest {
+   // Replace `MainActivity` with `io.flutter.embedding.android.FlutterActivity` if you removed `MainActivity`.
+   @Rule public ActivityTestRule<io.flutter.embedding.android.FlutterActivity> rule = new ActivityTestRule<>(io.flutter.embedding.android.FlutterActivity.class);
+ }
diff --git a/flutter-blue-sample-master/android/app/src/debug/AndroidManifest.xml b/flutter-blue-sample-master/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.pauldemarco.flutter_blue_example">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/flutter-blue-sample-master/android/app/src/main/AndroidManifest.xml b/flutter-blue-sample-master/android/app/src/main/AndroidManifest.xml
@@ -0,0 +1,40 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.pauldemarco.flutter_blue_example">
+    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
+         calls FlutterMain.startInitialization(this); in its onCreate method.
+         In most cases you can leave this as-is, but you if you want to provide
+         additional functionality it is fine to subclass or reimplement
+         FlutterApplication and put your custom class here. -->
+    <application
+        android:name="io.flutter.app.FlutterApplication"
+        android:label="flutter_blue_example"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name="io.flutter.embedding.android.FlutterActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- This keeps the window background of the activity showing
+                 until Flutter renders its first frame. It can be removed if
+                 there is no splash screen (such as the default splash screen
+                 defined in @style/LaunchTheme). -->
+            <meta-data
+                android:name="io.flutter.app.android.SplashScreenUntilFirstFrame"
+                android:value="true" />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".EmbeddingV1Activity"
+            android:theme="@android:style/Theme.Black.NoTitleBar"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+        </activity>
+        <meta-data android:name="flutterEmbedding" android:value="2"/>
+    </application>
+</manifest>
diff --git a/...r/android/app/src/main/java/com/pauldemarco/flutter_blue_example/EmbeddingV1Activity.java b/...r/android/app/src/main/java/com/pauldemarco/flutter_blue_example/EmbeddingV1Activity.java
@@ -0,0 +1,15 @@
+package com.pauldemarco.flutter_blue_example;
+
+import android.os.Bundle;
+import dev.flutter.plugins.e2e.E2EPlugin;
+import io.flutter.app.FlutterActivity;
+import com.pauldemarco.flutter_blue.FlutterBluePlugin;
+
+public class EmbeddingV1Activity extends FlutterActivity {
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    FlutterBluePlugin.registerWith(registrarFor("com.pauldemarco.flutter_blue.FlutterBluePlugin"));
+    E2EPlugin.registerWith(registrarFor("dev.flutter.plugins.e2e.E2EPlugin"));
+  }
+}
diff --git a/flutter-blue-sample-master/android/app/src/main/res/drawable/launch_background.xml b/flutter-blue-sample-master/android/app/src/main/res/drawable/launch_background.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/flutter-blue-sample-master/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/flutter-blue-sample-master/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
diff --git a/flutter-blue-sample-master/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/flutter-blue-sample-master/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
diff --git a/flutter-blue-sample-master/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/flutter-blue-sample-master/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
diff --git a/flutter-blue-sample-master/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/flutter-blue-sample-master/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
diff --git a/flutter-blue-sample-master/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/flutter-blue-sample-master/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
diff --git a/flutter-blue-sample-master/android/app/src/main/res/values/styles.xml b/flutter-blue-sample-master/android/app/src/main/res/values/styles.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+</resources>
diff --git a/flutter-blue-sample-master/android/app/src/profile/AndroidManifest.xml b/flutter-blue-sample-master/android/app/src/profile/AndroidManifest.xml
@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.pauldemarco.flutter_blue_example">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/flutter-blue-sample-master/android/build.gradle b/flutter-blue-sample-master/android/build.gradle
@@ -0,0 +1,29 @@
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.5.0'
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
diff --git a/flutter-blue-sample-master/android/gradle.properties b/flutter-blue-sample-master/android/gradle.properties
@@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx1536M
+android.enableR8=true
+android.useAndroidX=true
+android.enableJetifier=true