Re: Trouble with ESP-01 + 1Ch 5V relay from LC Technology
Posted: Tue Oct 31, 2017 2:59 pm
I have 5 of these boards, and I've tried 2 - no luck in getting the esp to operate the relay.
I successfully got the esp8266 outputting serial command as the examples posted here.
I could not get serial commands to activate the relay with or without the esp8266.
and applying voltage to the relay will activate it.
the resistors R3 and R4 are the values listed in the schematics (checked with multimeter)
I removed R4, and now, I can get the relay to activate if I short the relay to ground.
wondering if I should move forward with using the GPIO on esp to operate the relay.
and if so, how should I go about the wiring (inserting a NPN ? )
I successfully got the esp8266 outputting serial command as the examples posted here.
I could not get serial commands to activate the relay with or without the esp8266.
and applying voltage to the relay will activate it.
the resistors R3 and R4 are the values listed in the schematics (checked with multimeter)
I removed R4, and now, I can get the relay to activate if I short the relay to ground.
wondering if I should move forward with using the GPIO on esp to operate the relay.
and if so, how should I go about the wiring (inserting a NPN ? )