915 Generation ESP8266 Wireless WIFI 4 Channel Relay Module ESP-12F Wifi Development Board for ACDC 5V8-80V Power Supply

2 The IO port of the WIFI module and the UART download port are all led out to facilitate secondary development
3 Onboard AC-DC switching power supply module power supply mode supports AC90-250VDC7-30V5v
4 Onboard WIFI module reset on ESP-12F supports the use of development tools such as IDE and provides for Reference in the development environment
5 Onboard 4 5V relays output switch signal suitable for controlling the working voltage of AC Load within 250VDC 30V On-board power indicator 1 programmable LED and relay indicator

Burning port
The GND TX and 5V of ESP8266 are respectively connected to the GND TX of the external TTL serial port module
5V IO0 needs to be connected to GND when downloading and then disconnect the connection between IO0 and GND after downloading
Relay output
NC Normally closed the relay is short-connected with it is closed and it is suspended after closed
public end
NO Normally open end the relay is suspended closed and shorted to after closed
colourGreen
MaterialPCB
size87 x 93mm

Package Contents
1 x ESP8266 4 Channel Relay Module

Only 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