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
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?
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
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.
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.
@@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?
@@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.
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.
@@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
USUALLY ESP32 GIVES 3.3V , BUT THE RELAY NEEDS 5V TO CONTROL. HOW DID YOU FIX THIS ISSUE
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
Please also teach how to create webpage from esp32 and user can turn ON/OFF relay by clicking on ICONs.
can you make a video on how to switch it on and off using mobile phone, thank you.
i dont know what i did wrong my red and green light is blinking but tic tic sound not coming
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?
Use firebase
While powering on the circuit the relay get automatically triggered from esp32
what is the advantage of Relly if we use high voltage to make the ligthbulb ON?
Because we can't turn on a light bulb using microcontrollers without a relay.
Sir Thanq for wonderful video.Can i integrate web sever video2 with this relay system. Pl advice
Yes, sure
There are also esp modules relays build in.
Where? Any that plug in to the esp32 dev board headers?
Can I power 3 relays from this 5v pin? What would be the max current?
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.
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
yes
For the serial can we get the status where relay turn on the lamp dan turn off the lamp?
Yeah, create a state variable and a toggle function to reverse the status of the lamp.
module is working blue light on and off but relay are not on and off plz help
I guess we can solve this by using an external power supply to power up the relay module.
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.
I wrote the same code but bulb is on mode only not able to off plz give some suggestions
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.
@@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?
@@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.
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i am using using esp32 DevKitV1,., its not working,., can u help?
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.
@@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
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