Pre flashed ESPHome built in ESP8266
 
For Yaml, please visit: 
https://github.com/athom-tech/athom-configs/blob/main/athom-relay-board-x4.yaml
 
DC 5V/DC 7-28V   input  30A relay
 
All IOs on board,  Tasmota user can connect anything for example : motion sensor/ temperature sensor etc to the board, IO description as picture show.
 
Self-Locking:
 
The default setting of the relay is self-locking 
 
Inching Mode:
 
To change self-locking mode to Inching mode, please follow the instruction below :
 
 Use commandline input : PulseTime 1
 
Operating voltage: 5V/7-20V DC
relay on/off status respectively
Two input interfaces
Supports to control different voltage ranges
USB port power supply more convenient
Board consumption: <1W
Standby current: 80mA
Max input current: 30A
Max Wattage: 2200W
Relay lifespan: ≥one million times
100M electrical insulation resistance
Electric shock voltage: 1000V
Relay maximum pull time: 15ms
Relay maximum release time: 5ms
Working mode: inching / self-locking
Wireless Standard: 2.4GHz, 802.11 b/g/n
Application: access control, turn on PC, garage door, etc.
Computer application: Remote control computer boot
Operating temperature: -40 degrees to +70 degrees
Operating Humidity 40%-80% RH