1. Onboard and stable ESP32-WROOM-32E module, with a large capacity of 4M Byte Flash; 2. All I/O ports and UART program download ports of the ESP32 module are exported for easy secondary development; 3. Onboard Micro-USB port+DC-5-80V to 5V power supply circuit (recommended to supply DC-12V); 4. Onboard IO0 programmable buttons; 5. An N-channel MOS transistor with an onboard leakage source voltage of 60V, suitable for controlling loads with a "control operating voltage" within DC60V; The DC powered ESP32 single MOS switch module is equipped with the ESP32-WROOM-32E WiFi&BLE module, with all I/O ports leading out, Supports DC5-80V power supply mode+Micro-USB port power supply. Suitable for ESP32 secondary development learning, smart home wireless control and other occasions. Color: As Shown Material: PCB Package Contents: 1 * Development Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.