Devices: ELEGOO 8 Channel DC 5V Relay Module with Optocoupler Compatibility ESP32 5V 10A Mean Well LRS-50-5 Power Supply and a 5V 2A phone charger or 5V 1A phone charger I think this is my problem: When I check the voltage and amperage across my Ground and 3.3VIN pin on my ESP32, it reads 4.7V …

From the image, it looks the ESP32's CLK pin is connected to the VCC pin of the relay board. Did you mean to connect the relay VCC to the ESP32's 5V pin? Which would not be a good idea but that's your thing.

Unable to Power 8 Ch. Relay Board

Development Tools IDE 1.x

killzone_kid September 21, 2021, 8:39am 13

But then it will scratch the table!

1 Like

Topic		Replies	Views
5v relay module stopped working after after connecting 220v light bulb General Electronics	8	1278	August 13, 2021
Everything is working but trouble appears by applying power to the relay board Jobs and Paid Consultancy	8	2486	May 6, 2021
LeaningTech 4-CH 5V 4 Kanäle Relais Modul an Espressif ESP32 Deutsch	16	3686	May 6, 2021
5v 8Ch Relay Board - Weird Issue - Leds work, but not relays Motors, Mechanics, Power and CNC	3	745	May 6, 2021
How do I get my relay to trigger? General Electronics	28	1301	December 3, 2022

Unable to Power 8 Ch. Relay Board

Related topics