Add service data advertising example.

Author: h2zero

examples/NimBLE_Service_Data_Advertiser/NimBLE_Service_Data_Advertiser.ino

@@ -0,0 +1,33 @@
+/** NimBLE_Service_Data_Advertiser Demo:
+ *
+ *  Simple demo of advertising service data that changes every 5 seconds
+ *
+ *  Created: on February 7 2021
+ *      Author: H2zero
+ * 
+*/
+
+#include <NimBLEDevice.h>
+
+#define SERVICE_UUID "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
+
+static NimBLEUUID dataUuid(SERVICE_UUID);
+static NimBLEAdvertising *pAdvertising = NimBLEDevice::getAdvertising();
+static uint32_t count = 0;
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("Starting BLE work!");
+  
+  NimBLEDevice::init("svc data");
+}
+
+void loop() {
+  pAdvertising->stop();
+  pAdvertising->setServiceData(dataUuid, std::string((char*)&count, sizeof(count)));  
+  pAdvertising->start();
+  
+  Serial.printf("Advertising count = %d\n", count);
+  count++;
+  delay(5000);
+}