ESP-01 Relay V4.0 Relay
ESP-01 Relay V4.0

Available from:

GPIO #Component
GPIO00 Relay1i
GPIO01 Led1
GPIO02 None
GPIO03 None
GPIO04 None
GPIO05 None
GPIO09 None
GPIO10 None
GPIO12 None
GPIO13 None
GPIO14 None
GPIO15 None
GPIO16 None



This works without hardware modification on the v4.0 module

Program your 8 pin ESP-01 module with Tasmota and add the template above to open and close it. The relay module will have a blue light when it is open.

There is no add in for the button on the module as it serves as a reset, rather than an on/off switch.

To make this work with v1.0 of the ESP-01 Relay, you must remove R2 (desolder it or just break it off with a screwdriver) and pull CH_PD high (this is easiest to do with a 10k resistor): https://i.imgur.com/79ySGMt.jpg