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IOT-MCU / ESP-01S-Relay-v4.0

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ESP-01 does not work when pluged into the board #8

Open TKeijmel opened 3 years ago

TKeijmel commented 3 years ago

I used ESP Home with Home Assistant to create custom firmware.

it works when i use jumper wires (all the pins) to create some distance between the relay board and the ESP-01 module. but when i put the ESP-01 board on the relay board Home Asistand doesn't register it.

it also doesn't show up in my wifi-ap.

the relay clicks when i power it on or reset th ESP-01.

to me it seems the ESP-01 doesn't boot properly or wifi issue when it's on the board.

shkdxb commented 1 year ago

are you sure you are connecting ALL the Pins from ESP-01S? i am having same issue here - the ESP is ESP-01S version with only one LED - connected to GPIO2 on ESP. The relay Board 1CH (with one relay) Ver 4.0 marked as "TB:IOTMCU", while i leave the GPIO2 with all other connected by jumber wire, it works normally. when GPIO2 is connected it goes to disconnected mode from wifi. on checking, found the GPIO2 on relay board is connected to GND!!! which is not normal working mode. It suppose to be open, Also the LED on ESP01S is getting turn on when i connect to Relay board (due to this Grounding) directly with ESP01S. My option now is Cut the GPIO2 PIN on ESP01s and use only GPIO0 as the relay is only one. Anyone having any suggestion other than cutting the GPIO2 pin?