bluetooth_esp32

#include "BluetoothSerial.h"

#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)
#error Bluetooth is not enabled! Please run `make menuconfig` to and enable it
#endif

BluetoothSerial SerialBT;

char chr_bt[10];
int c_bt;
String str_bt, buf_str_bt;
unsigned long cur_time, old_time;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  SerialBT.begin("ESP32test"); //Bluetooth device name
  Serial.println("The device started, now you can pair it with bluetooth!");
}

void loop() {
  // put your main code here, to run repeatedly:
  while(SerialBT.available()){
    chr_bt[c_bt] = SerialBT.read();
    c_bt++;
  }
  cur_time = millis();
  if(cur_time - old_time >= 1000){
    for(int i=0; i<c_bt - 2; i++){
      str_bt += String(chr_bt[i]);
    }
    if(str_bt == "rst"){
      Serial.println("EEPROM ERASE");
    }
    str_bt = "";c_bt = 0;
    old_time = cur_time;
  }
}