Using Analog input of ESP32 read Potentiometer DC voltage

[@paultakoy7091]

I just came across this video. Awesome video and explanation. I am working on building a variable bench power supply with a computer interface. I would like to display/change the values both on the power supply and also on the computer screen. I’m looking forward to watching your current and any new videos. Keep up the great work!

[@nouh7484]

AMAZINGGGGGGGGGGGGGGGGGGGGGGGGGGGG PROOOO KEEEEEEEP GOOOOOOOOOOOOOOOO

[@ahmetozdemir7173]

Thanks for video. You have made explanations that will make the esp32 pins, which are difficult to understand, more understandable. I have a question; If analog pins are used, that is; If pins A0, A1, A2, A3, A4 are full, which other pins can we use for analog input?

[@robojax]

Hi, this video will answer all your questions on eap32 kzbin.info/www/bejne/Y16pm2uHedF6q7M

[@ahmetozdemir7173]

@@robojax Thanks

[@ztiger09]

Can you do a video on how to program the basics of Wesmos D1 R32? Like turning an led on or off etc.

[@robojax]

Just search my channel. I have it. Here is how to Gina d a video in a channel kzbin.info/www/bejne/hZnOhpabd7yWftU

[@giovannazemke9072]

very nice, thank you

[@robojax]

Our pleasure!

[@MrAce-rs6ju]

Thank you Ahmed, like to see more videos like that with explanation 👍

[@robojax]

You are welcome. Every video I make will be like this. I don't leave anything unexplained. Thanks.

[@ramalbeenu]

Is it possible to use analogRead in any analog pin in esp32 (unlike ledcWrite)

[@robojax]

I belive I have mentioned which pins can be use for analog reading.

[@alanw5879]

Hello, thank you for the great video, I think everyone is playing catch up with these ESP32 boards, abit different from the regular Arduino setup. My question is, I'm using the ESP32 wrover-dev. That has a 3.3&5v output. Can 5v be used for a pot if the voltage level is changed in the code? And what pin is best for output, to actually actuate with the pot? Thank you much.

[@robojax]

hello, to read pot, I have shown all pins that are available to be used in this same video. Here is full introduction video to ESP32 kzbin.info/www/bejne/Y16pm2uHedF6q7M where I have shown pins for power supply and all specs. I have not make any video on analog output yet.

[@LUCKY007725]

Dear Ahmed, Nice work as always. Plz make a video on a project... DHT sensor connected with UNO and Esp mudule can read it and can show both temp and humidity to blynk server. Regards

[@robojax]

Thank you Ehtesham. I never heard of blynk. Just checked it. How do you use it? it is not free.

[@LUCKY007725]

@@robojax thanks for response. Blynk is very useful and very friendly. I used it in my many projects... I am planning to use STM32 microcontroller and esp8266 for one of my Chicken egg Hetchery project but issue is to interfacing esp8266 with it or UNO...

[@robojax]

I just check it it is a scam. Pay for simple connection? really? I am working on platform that offers free. snipboard.io/vuWIO5.jpg will never promote this. Students should learn at least with 5 devices and 10 to 20 projects should be absolutely free.

[@CATips]

I m having nodemcu.. I have input from level transmitter 1-5V need to convert 0 - 100% water level from blynk app morning gauge please do the needful

[@robojax]

why people pay for "blynk"? I am amazed. It should be free. Unless I find something that offer some basic FREE features, I will not sure or try to use this kind of service.

[@kg1610]

@@robojax - what do you use / reccomend in place of Blynk?

[@robojax]

I don't know. I've spent 1000s of hours of my time offering this for free. I have to see.

[@Industrieelektriker]

Hello Ahmet, verry interesting ! Can you please explain me, how can i measure and display positive and negative Voltage. I looking for a solution to measure +12Volt to -12Volt ? Do you can help me please?

[@edinfific2576]

The first thing you need to do is level-translate the input voltage so that -12V corresponds to 0V at the ADC input, and that +12V corresponds to 3.3V at ADC input. In reality, you should include -13V to +13V as a range in order to see the voltage slightly above 12V. First you need to split the 3.3V in half, and use that half point as 0V. Then you need a resistive voltage divider to drop 13V to 1.65V. Finally, you need to reflect that in the code, so that the code would make 0V into -13V, 1.65V into 0V, and 3.3V into +13V and appropriately space or multiply any of the voltages in between. I know the analog part, but I don't know how to do it in the code yet.

[@MrBobWareham]

Thank you for the information ESP32 very helpfull I love your videos always helpfull and with Code makes it easier for learners

[@robojax]

You are welcome. Pleased to hear that.

[@andrie1924]

Sir, I asked ... I once bought a module so I used esp 32 dev kit ... now I noticed that the V in was 12 Voltdc ... as far as I know the standard is 3.3 / 5 volts ... So how about that, the one using 12 Volts and it turns out to be durable until now ... what is the standard voltage?

[@robojax]

here I have explained this module fully : kzbin.info/www/bejne/Y16pm2uHedF6q7M

[@andrie1924]

@@robojax Thank you sir for the information, I pray that Allah will always protect and provide health. and hopefully what has been worked on becomes useful knowledge. greetings from your brother from Banjarmasin Indonesia

[@robojax]

you are welcome. Jazakallah for you prayer. و ایاکم. Salam to to all Indonesians.

[@pierricdoublet6248]

Super merci,possible de faire la même montage coupler avec un OLED ?

[@robojax]

Je vous en prie. J'ai une vidéo sur OLED avec ESP32 kzbin.info/www/bejne/mpyQYWSFpbCMq7M. Mais je vais faire une vidéo séparée sur ce

[@pierricdoublet6248]

@@robojax Merci!

[@devilvortex1]

hi. no pinMode in setup?

[@robojax]

Please watch introduction to this module. Search my channel

[@0124akash]

Reading is not accurately, if we measure 0V to 15V using this method. Please make video using ads1115, esp32, and LCD16*2 For DC monitoring.

[@robojax]

it is 12bits and for most applications it is very accurate.

[@abgrano]

How to read 5v sensor with esp32?

[@robojax]

what is "5v sensor"? this is the video to read 5V.