Garage mit RasPi, Versuche mit BLE

2020-07-21 14:14:12 +02:00
parent 88bffc7074
commit c7e64a23ff
8 changed files with 780 additions and 0 deletions
@@ -0,0 +1,54 @@
+#include <BLEDevice.h>
+#include <BLEServer.h>
+#include <BLEUtils.h>
+#include <BLE2902.h>
+
+#define SERVICE_UUID "7cddf5af-453f-40fa-808e-37ae6ad8facd"
+BLECharacteristic temphumidSense (BLEUUID("3383a686-a53c-42e4-a88c-e0e1de4c4bda"), BLECharacteristic::PROPERTY_READ
+| BLECharacteristic::PROPERTY_NOTIFY
+| BLECharacteristic::PROPERTY_INDICATE);
+BLEDescriptor temphumidDescriptor(BLEUUID((uint16_t)0x2901));
+
+bool clientConnected = false;
+
+
+class MyServerCallbacks: public BLEServerCallbacks {
+  void onConnect (BLEServer * pServer) {
+    clientConnected = true;
+  };
+  void onDisconnect (BLEServer * pServer) {
+    clientConnected = false; 
+  }
+};
+
+void setup () {
+  Serial.begin(115200);
+  BLEDevice::init("esp32-Server");
+  BLEServer *pServer = BLEDevice::createServer();
+  pServer->setCallbacks(new MyServerCallbacks());
+  
+  BLEService *pSensor = pServer-> createService(SERVICE_UUID);
+  
+  pSensor-> addCharacteristic(&temphumidSense);
+  temphumidDescriptor.setValue("In Degree Celcius");
+  temphumidSense.addDescriptor(&temphumidDescriptor);
+  temphumidSense.addDescriptor(new BLE2902());
+  
+  pServer->getAdvertising()->addServiceUUID(SERVICE_UUID);
+  pSensor-> start(); // Start the service
+  pServer-> getAdvertising()->start ();// Starts the discovery of ESP32
+  
+  Serial.println("Waiting for a client to connect ...");
+}
+
+void loop () {
+  if (clientConnected) {
+    temphumidSense.setValue("1234");
+    temphumidSense.notify();  // Send the Temperature reading to the application!
+    Serial.println("Sent string");
+  }
+  else {
+    Serial.println("Not connected");
+  }
+  delay(2000);
+}