beam-to-phone.ino

#include <Arduino.h>
#include <BLEDevice.h>
#include <BLEServer.h>
#include <BLEAdvertisedDevice.h>

BLEAdvertising* pAdvertising = NULL;

void setup() {
  Serial.begin(115200);
  Serial.println("Starting BLE work!");
  BLEDevice::init("MicroBlocks OctoStudio");
  pAdvertising = BLEDevice::getAdvertising(); 
}

void loop() {
  pAdvertising->stop();

  int randomNumber = random(256);
  // The first four bytes are random numbers
  uint8_t service_data[] = {0x2a, 0xa6, 0x84, randomNumber, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00};
  BLEAdvertisementData advertisementData = BLEAdvertisementData();
  advertisementData.setServiceData(BLEUUID("2540b6b0-0001-4538-bcd7-7ecfb51297c1"), std::string((char*)service_data, 13));
  pAdvertising->setAdvertisementData(advertisementData);
  
  pAdvertising->start();
  delay(3000);
}