reorganize, make an app?

door-thing-firmware/src/main.cpp

@@ -0,0 +1,85 @@
+#include <Arduino.h>
+#include <ArduinoBLE.h>
+
+// Door switch pin
+#define SWITCH_PIN 2
+
+BLEService switchService("180A"); // BLE Switch Service
+
+// BLE Switch Characteristic - custom 128-bit UUID, read by central
+BLEByteCharacteristic switchCharacteristic("1234", BLERead | BLEIndicate);
+
+void setup()
+{
+    Serial.begin(9600);
+    // while (!Serial)
+    //     ;
+
+    // begin initialization
+    if (!BLE.begin())
+    {
+        Serial.println("starting Bluetooth® Low Energy failed!");
+        while (1)
+            ;
+    }
+    pinMode(SWITCH_PIN, INPUT);
+
+    // set advertised local name and service UUID:
+    BLE.setLocalName("Nano 33 BLE");
+    BLE.setAdvertisedService(switchService);
+
+    // add the characteristic to the service
+    switchService.addCharacteristic(switchCharacteristic);
+
+    // add service
+    BLE.addService(switchService);
+
+    // set the initial value for the characteristic:
+    switchCharacteristic.writeValue(0);
+
+    // start advertising
+    BLE.advertise();
+
+    Serial.println("BLE Switch Peripheral");
+}
+
+void loop()
+{
+    // listen for BLE 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());
+        digitalWrite(LED_BUILTIN, HIGH); // turn on the LED to indicate the connection
+
+        // while the central is still connected to peripheral:
+        bool oldState = digitalRead(SWITCH_PIN);
+        while (central.connected())
+        {
+            // read the switch state:
+            bool newState = digitalRead(SWITCH_PIN);
+
+            // if the switch state has changed:
+            if (newState != oldState)
+            {
+                // update the characteristic value:
+                switchCharacteristic.writeValue(newState);
+
+                // print the new switch state:
+                Serial.print("Switch state: ");
+                Serial.println(newState);
+
+                // update the old switch state:
+                oldState = newState;
+            }
+        }
+
+        // when the central disconnects, print it out:
+        Serial.print(F("Disconnected from central: "));
+        Serial.println(central.address());
+    }
+}