LC Technology 12V 4 Channel Relay Board (LC-ESP01-4R-12V)
LC Technology 12V 4 Channel

Available from:


Install method:
USB to Serial

GPIO #Component
GPIO00 Relay1
GPIO01 None
GPIO02 Relay2
GPIO03 None
GPIO04 Relay3
GPIO05 Relay4
GPIO09 None
GPIO10 None
GPIO12 None
GPIO13 None
GPIO14 None
GPIO15 None
GPIO16 None
Configuration (old format, will be converted to new template when applied)
{"NAME":"LC Technology 4CH Relay","GPIO":[21,0,22,0,23,24,0,0,0,0,0,0,0],"FLAG":0,"BASE":18}
Use code BLAKADDER23 when buying from mediarath.de Tasmota category and a minimum order value of 50€ for a 10% discount. The code is valid until end of 2023.

With Nuvoton N76E003AT20 microcontroller

You need to configure these rules to control the relays. The ones defined in the template are just virtual relays!

on System#Boot do Baudrate 115200 endon
on SerialReceived#Data=41542B5253540D0A do SerialSend5 5749464920434f4e4e45435445440a5749464920474f542049500a41542b4349504d55583d310a41542b4349505345525645523d312c383038300a41542b43495053544f3d333630 endon
on Power1#State=1 do SerialSend5 A00101A2 endon
on Power1#State=0 do SerialSend5 A00100A1 endon
on Power2#State=1 do SerialSend5 A00201A3 endon
on Power2#State=0 do SerialSend5 A00200A2 endon
on Power3#State=1 do SerialSend5 A00301A4 endon
on Power3#State=0 do SerialSend5 A00300A3 endon
on Power4#State=1 do SerialSend5 A00401A5 endon
on Power4#State=0 do SerialSend5 A00400A4 endon

Make sure to enable the rule: rule1 1