ESP32_BLE_Keyboard.ino

//https://github.com/T-vK/ESP32-BLE-Keyboard
#include <BleKeyboard.h>

BleKeyboard bleKeyboard("My esp 32");// broadcasted name of the device 

void setup() {
  Serial.begin(115200);
  bleKeyboard.begin();
  Serial.println("Starting BLE work!");
}

void loop() {
  if (!bleKeyboard.isConnected()) {
    Serial.println("not connected");
    delay(5000);
    return;
  }

  bleKeyboard.press('a');
  bleKeyboard.release('a');
  delay(5000);
}