1. The design and modification are based on the shape and structure of the for Raspberry Pi. The appearance is similar to the structure of the for Raspberry Pi motherboard. The 2 x 20 expansion ports next to it have reserved pins that match the for Raspberry Pi GPIO. 2. For Raspberry Pi expansion board 3. TF card holder, self-elastic card holder, easy to pull out the card 4. Chip: ESP32-WAROVER 5. Relay: HFD3 5V 2A 6. RTC: PCF8563 7. Type-c input: 5V 8. Purpose: IoT programming development 9. Power: 0.5W 10. Rated voltage: 5v 11. DC-DC input: 5-12V 12. Extension pin header: 2.54 2 x 20 13. Double-layer USB interface: I2C/UART function respectively 14. Double-layer USB expansion port: output 5V/1A 15. Button: RST button, custom button 16. USB output: 5V 1A 17. Dimensions: 99.7 x 62.5 x 31.2mm
