LC-Relay-ESP12-1R-D8 single way relay development board carry on ESP-12F WiFi module I/O port is fully extracted, support DC8-80V/USB 5V and other power supply methods. Supply development environment reference code, suitable for ESP8266 secondary develop learning, smart home wireless control and other occasions.Onboard mature and stable ESP-12F WiFi module ,High capacity4M Byte Flash.Reserve GPIO for ESP-12F. Reserve UART firmware update interface.Onboard WiFi module RST reset button. Onboard 1 channel 5V relay.color: blueMaterial: PCBModel: LC-Relay-ESP12-1R-D8Work Voltage:DC8-80V/USB5VWIFI IC: ESP8266Communication Protocol:UARTLoad voltatge:AC 250V or DC 30V(Max)Load current:10A(Max)Work Temperature:-25?-85?Work Humidity:5%-95%RHSize:59 x 48 x 19mmPackage:3pcs WIFI Relay Switch Module3pcs 2 x 7Pin 2.54mm Male Pin3pcs 2 x 6Pin 2.54mm Male Pin3pcs 5Pin 2.54mm Male Pin3pcs 2.54mm Jump CapOnly the above package content, other products are not included.Note: Light 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.