ESP32 GPIO Breakout Board : USB and type c : 5V power supply input interface DCpower supply interface: 6.5-16V power input port Jump interface select voltage is 5V or 3.3V Reference links of ESP32 at below: https://github.com/espressif/arduino-esp32 https://github.com/Nicholas3388/LuaNode https://github.com/nodemcu/nodemcu-firmware/tree/dev-esp32 Tips: When you download the program to ESP32, you need to press the IOO button for 1-2 seconds. Package included: 3 X ESP-WROOM-32 ESP-32S development board 3 x ESP32 30p breakout board

This esp32 kit is safe, reliable, and scalable to a variety of applications. Stable and highly reliable. Great contact and stable signal transmission for your program. ESP32 development board GPIO breakout board GVS output power supply can be 5V or 3.3V, which is more convenient to match the external 5V electronic module sensor. ESP32 shield 30P expansion board, supports two power supply : DC 6.5-16v and USB 5V. The module is ESP-WROOM-32 module, the peripheral uses the USB serial port chip CP2102 to expand the micro USB interface, which can be directly debugged by a USB connected computer, and the data transmission is fast and stable. Dual core ESP-32 development board, 2.4GHz dual mode development board.There are two touch buttons, one is reset, the other is enable module to enter the halberd program mode.