http://www.instructables.com/id/ESP32-BLE-Android-App-Arduino-IDE-AWESOME/
This is good! I have tested! But the target use about 71% program size about ESP32.
http://www.instructables.com/id/ESP32-BLE-Android-App-Arduino-IDE-AWESOME/
This is good! I have tested! But the target use about 71% program size about ESP32.