ESP8266 Community Forum

- Sun May 17, 2020 1:08 pm #87163

that sounds like bad wiring (ground routing) and decoupling of the motor circuit.

That's very probable. Taking into account my huge knowledge of electronics, my wiring could be incorrect. Where can I find necessary information about wirings?

- Sun May 17, 2020 1:46 pm #87165 maybe you post a photo from your installation and we try to work out strategic points/measures.

- Sun May 17, 2020 4:07 pm #87166

maybe you post a photo from your installation and we try to work out strategic points/measures.

Sir, I'd be very grateful!
Look, here is the schema that I have.

(The image's http address is https://drive.google.com/file/d/1EVlmei ... sp=sharing)

- Sun May 17, 2020 9:34 pm #87170 You have Vcc and Gnd reversed on the connections for the transistor of the optocoupler and R1. Hopefully that is just an error in the schematic.