Add RAK3112 BLE Scanner example

Author: beegee-tokyo

examples/RAK3112/communications/BLE/RAK3112-BLE-Scanner/RAK3112-BLE-Scanner.ino

@@ -0,0 +1,51 @@
+/**
+   @file api-test.ino
+   @author Bernd Giesecke ([email protected])
+   @brief BLE Scanner example
+   @version 0.1
+   @date 2021-09-10
+
+   @copyright Copyright (c) 2021
+
+*/
+
+#include <Arduino.h>
+#include <BLEDevice.h>
+#include <BLEUtils.h>
+#include <BLEScan.h>
+#include <BLEAdvertisedDevice.h>
+
+int scanTime = 5; // In seconds
+BLEScan *pBLEScan;
+BLEScanResults foundDevices;
+
+class MyAdvertisedDeviceCallbacks : public BLEAdvertisedDeviceCallbacks
+{
+	void onResult(BLEAdvertisedDevice advertisedDevice)
+	{
+		Serial.printf("RSSI %d Name: %s\n", advertisedDevice.getRSSI(), advertisedDevice.getName().c_str());
+	}
+};
+
+void setup()
+{
+	Serial.begin(115200);
+	Serial.println("Scanning...");
+
+	BLEDevice::init("");
+	pBLEScan = BLEDevice::getScan(); // create new scan
+	pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
+	pBLEScan->setActiveScan(true); // active scan uses more power, but get results faster
+	pBLEScan->setInterval(100);
+	pBLEScan->setWindow(99); // less or equal setInterval value
+}
+
+void loop()
+{
+	// Start the scan
+	pBLEScan->start(scanTime, false);
+
+	Serial.println("Scan done!");
+	pBLEScan->clearResults(); // delete results fromBLEScan buffer to release memory
+	delay(2000);
+}