1.GPIO port

2.Serial port

3.Analog-digital converter

4.Digital-Analog Converter

5.EEPROM (Electrically Erasable Programmable read only memory)

6.Gyro IMU（MPU6050）

7.Infrared remote control

8.PWM(Pulse Width Modulation)

9.Servo(under construction)

10.Classic Bluetooth serial port SPP

11.Bluetooth low energy (BLE) serial port pass-through

12.File system SPIFFS

13. Add hardware partition configuration option in Arduino IDE

14.The usage of Wi-Fi OTA(Over-The-Air)