Controlling Relay Boards from an ESP32

[@TCHamilton56]

Thanks!

[@EnjoyMechatronics]

Your encouragement means the world to me and keeps me motivated to create more content. I truly appreciate each and every one of you!

[@mohamedalouzi3690]

what is the advantage of Relly if we use high voltage to make the ligthbulb ON?

[@EnjoyMechatronics]

Because we can't turn on a light bulb using microcontrollers without a relay.

[@jumbo999614]

Please also teach how to create webpage from esp32 and user can turn ON/OFF relay by clicking on ICONs.

[@makersfunduck]

There are also esp modules relays build in.

[@0my]

Where? Any that plug in to the esp32 dev board headers?

[@xiaorulez]

Can I power 3 relays from this 5v pin? What would be the max current?

[@EnjoyMechatronics]

Yeah, and if it doesn't work, you could use an external power supply(5v) And connect its ground to the gnd of the esp32 board.

[@simplyihyan7251]

can you make a video on how to switch it on and off using mobile phone, thank you.

[@VuongNamDuong]

Please also teach how to After loading the code for the esp32, do I need to plug the micro USB into the esp32? If you unplug the micro USB into the esp32, does the light come on?

[@EnjoyMechatronics]

Use firebase

[@n.mariama9454]

When I upload for the first time, I get the error Wrong boot mode detected (0×b)! The chip needs to be in download mode. I manually pressed the boot button when I tried again, but got the same error

[@w.s.n.nemindara9510]

USUALLY ESP32 GIVES 3.3V , BUT THE RELAY NEEDS 5V TO CONTROL. HOW DID YOU FIX THIS ISSUE

[@raahimkhan7210]

Did you figure it out? I'm also having the same issue

[@w.s.n.nemindara9510]

​@@raahimkhan7210 yes, u can use a transistor. But it is easy if you use a Solid State Relay. You can connect directly and it is more durable

[@isciadmin]

You can find 3v relay module.

[@sudarnosilaban5648]

For the serial can we get the status where relay turn on the lamp dan turn off the lamp?

[@EnjoyMechatronics]

Yeah, create a state variable and a toggle function to reverse the status of the lamp.

[@fireeyes2242]

While powering on the circuit the relay get automatically triggered from esp32

[@varshabanasode4347]

I wrote the same code but bulb is on mode only not able to off plz give some suggestions

[@shukriazizi9516]

please check the relay that u utilized. generally, there are 2 variation of relay which are 5V relay and 3.3V relay. ESP microcontroller just support 3.3V relay since the output signal is 3.3V. if u used 5V relay, it will not trigger the relay to switch the open and close circuit.

[@nataliaballesteros7997]

@@shukriazizi9516 Does this depend on the ESP32 that is used? I´m having the same problem and I´m using the ESP32 Devkit V1, If i changed it for the ESP32 WROOM 32D would it work?

[@shukriazizi9516]

@@nataliaballesteros7997 no, it dosnt works. you can still use ESP32 dev kit with logic level converter (LLC). LLC will convert output signal from 3.3v to 5V which compatible with 5Vrelay.

[@chinmayagarnaik749]

i dont know what i did wrong my red and green light is blinking but tic tic sound not coming

[@bkcganeshblogs]

Sir Thanq for wonderful video.Can i integrate web sever video2 with this relay system. Pl advice

[@EnjoyMechatronics]

Yes, sure

[@gabrielbianchi2246]

Can I use this to actuacte a solenoid for an exact period of time? For example, if I send 0.3002 from my phone, it actuates on the solenoid for exactly, (or very close to) 0.3002 seconds

[@Noughtta]

yes

[@WaqarHussain-zl3rt]

module is working blue light on and off but relay are not on and off plz help

[@EnjoyMechatronics]

I guess we can solve this by using an external power supply to power up the relay module.

[@shukriazizi9516]

please check the relay that u utilized. generally, there are 2 variation of relay which are 5V relay and 3.3V relay. ESP microcontroller just support 3.3V relay since the output signal is 3.3V. if u used 5V relay, it will not trigger the relay to switch the open and close circuit.

[@TagFul19]

@@shukriazizi9516

[@EnjoyMechatronics]

♥ Don't Click This! : bit.ly/3jvI8g6

[@PangkoyPacamalan]

i am using using esp32 DevKitV1,., its not working,., can u help?

[@shukriazizi9516]

please check the relay that u utilized. generally, there are 2 variation of relay which are 5V relay and 3.3V relay. ESP microcontroller just support 3.3V relay since the output signal is 3.3V. if u used 5V relay, it will not trigger the relay to switch the open and close circuit.

[@sayaorang6655]

​@@shukriazizi9516I use a 5vdc relay, but it can't be controlled at the vin pin, while at the 3v3 pin, the relay works normally, what should I do?, I need the 3v3 pin for other things

[@shola-j5j]

How did you resolve this, I don't see 3.3v relay that can be use with this esp32

[@solarchumboacido]

Like