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LC Technology 5V/8-80V 1 Channel Relay Board
Model reference: ESP12F_Relay_X1_V2
LC Technology 5V/8-80V 1 Channel

Available from:
Aliexpress.com
Amazon.ca



Manufacturer:
Chinalctech.com

Install method:
USB to Serial

GPIO #Component
GPIO00 User
GPIO01 User
GPIO02 LedLink
GPIO03 User
GPIO04 User
GPIO05 Relay1
GPIO09 User
GPIO10 User
GPIO12 User
GPIO13 User
GPIO14 User
GPIO15 User
GPIO16 Led2i
FLAG User
Configuration (old version)
{"NAME":"LC-Relay-ESP12-1R-D8","GPIO":[255,255,157,255,255,21,255,255,255,255,255,255,57],"FLAG":15,"BASE":18}

WARNING: DO NOT IN ANY CIRCUMSTANCE OPERATE THE DEVICE WHILE CONNECTED TO AC POWER

Flash using any of the provided TX/RX headers and GND. Do not connect VCC from the USB-to-serial adapter but power the module using micro USB.

UART Program download port: ESP8266 GND,RX,TX,5V separately connect external TTL Serial module GND,TX,RX,5V, IO0 need with GND connect when download, disconnect the connection between IO0 and GND After the download is complete.