915 Generation 4 Channel ESP8266 Wireless WIFI Relay Module ESP-12F Development Board AC90-250VDC7-30V5V E- APP Remote Control

2 The IO port of the WIFI module and the UART download port are all led out to facilitate secondary development
3 The power supply mode supports AC90-250VDC7-30V5V
4 The first reset on of the wifi module on the board
5 ESP-12F supports the use of development tools such as for ide and provides reference programs in the for development environment

6 There are 4 5v relays on the board which are used to switch output signals and are suitable for controlling loads whose working voltage is in the AC range
7 On-board power indicator 1 programmable LED and relay
Power supply
4 channels AC90-250VDC7-30V5V
Writing mouth
The GND TX and 5V of ESP8266 are connected to the GND TX and 5V of the external TTL serial port module respectively The IO0 should be connected to the GND when the download is complete Disconnect the IO0 and GND after the download is complete
Relay output
NC normally closed end short connect with relay closing suspended after closing
public terminal
NO normal the relay is suspended closing and short connected with after closing
Colourgreenblue
MaterialPCBelectronic components
Size 93 x 87mm

Package Contents
1 x ESP8266 Wireless WIFI Relay Module

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