How to use a RELAY with ESP32 | Easy Guide

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github.com/INO...
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[@mohankanth1910]

Please everyone note that
Only relay with optocoupler works well in ESP32
The configuration of relay without optocoupler won't work in ESP32 due to direct grounding in relay module

[@scaygevry]

makasih bang

[@ah-lx9xi]

Interesting but a few questions if you can answer please.
1. How many relays can you control? Relays to open close a solenoid coil actuator.
2. To make use in a practical application such as an ESP32 camera installed, detecting an apple. If it's in center of picture open door_center. If it's to the right, open_door right. If it's to the left open door_left
If you can help out, otherwise thanks, still an interesting short video.

[@larinand]

Thanks man, it really helped me.

[@sakethkashyapnagendra9278]

Mine is switching only once , that too before uploading completely, how to fix?

[@mrpid87]

what is the wiring configuration for the other side of the relay?

[@emilcost8613]

Where do you supply power if you disconnect the usb cable?

[@INOVATRIX]

There is a pin labelled "VIN" on the board, you can easily connect 5v supply to it.

[@0my]

Does anyone sell a relay board that just plugs into the headers on the dev kit board?

[@snimavat]

This is 5v relay, needs 5v power supply and 5v logic level, how does it work with esp32 which is 3v3 ? - is it reliable, could it damage the board ?

[@marcsmith2342]

I am currently trying to make a relay work with a ESP32, i have a SRD-03VDC (3V) and it doesn’t have enough Amp output i am starting to see

[@JoseTrujillo-qz6gv]

For me with upython IDE and the esp32c3, this solution has problem when the relay is with load and i think need a transistor for change the 3V3 to 5V.

[@RAMANKUMAR-ji8ip]

bro 3.3 and 5v pin of esp32 is used to supply power to esp32 but how we can use it for externa purpose this will harm our board

[@INOVATRIX]

Board can get power from the "VIN" pin. 3.3 and 5v can run small components.

[@StefanVanya]

3.3V to 5V relay ??

[@INOVATRIX]

Relay is of 5v but works perfectly with 3.3v

[@pineappily3119]

@@INOVATRIX I am using ESP32 3.3V with Relay 5V. But the switch does not work. If I connect to 5V it keeps the switch on but it does not turn off is there any solution?
Thanks!

[@DDc220]

@@pineappily3119Hello! I have the same problem. Did you find any solution? I use the Esp32 version with 30 pins

[@amir_abbas_992sh7]

@@pineappily3119same

[@summ3rtim373]

​@@pineappily3119I'm facing the same problem. did you find any solution?

[@Nutella66946]

Balls

[@INOVATRIX]

Cubes

[@ragulragul4031]

Bro can you please send me coding

[@INOVATRIX]

I have updated the link in the description.

[@spasticjackson9578]

YUCK