ESP32-WROOM Secondary Development Module Relay Board For Smart Home DC5V-12V ESP32 16 Way Relay Module Development Board DC power ESP32 16 relay module is equipped with ESP32-WROOM-32E WiFi&BL E module,I/O ports are all led out, support DC12V power supply mode. Suitable for ESP32 secondary development learning, smart home wireless control and other occasions. Specification: Onboard mature and stable ESP32-WROOM-32E module, large capacity 4M Byte Flash ESP32 module I/O port and UART program download port are all drawn out to facilitate secondary development The onboard DC-12V to 3.3V power supply circuit supports DC-12V Onboard RST reset button and IO0 programmable button ESP32 supports Arduino IDE compilation tools and provides reference programs under Arduino development environment 16 on-board 5V relay, output switching signal, suitable for control of the control voltage of AC250V/DC30V within the load Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1mm-1cm differences due to manual measurement. Package Included: 1x Relay Module 2x Pin     window.adminAccountId=239539428;