Analog to digital conversion on the Arduino – Free preview!

In this lesson, we look at the super-simple to use and very powerful analog to digital converter on the Arduino.  NOTE: As was pointed out by some students, when connecting your potentiometer to the Arduino, it is very important that the middle wire of the potentiometer go to the analog input. Otherwise, you’re putting a variable resistor right across the power supply of the Arduino board and you’ll burn out your voltage regulator.

Questions

  • 2

    Lightningie

    Hi!

    I have very much enjoyed your robotics course! Curious: I was wondering if this lesson is the last one as of module 2? Will there be any more lessons until module 3?

    Thank you for your time!
    Lightningie

    • Ian Juby

      Mornin!
      Nope – not done yet, I’ve just been getting whipped like a rented mule at work. 🙂 Am actually hoping to get several lessons up here in the next couple of days. If I can finish it, I will, but I’ve got about a dozen more lessons or so to make. Cool stuff coming up next. 🙂

    • Lightningie

      Thank you. Best of luck to you!

      Lightningie

  • 1

    Jacob

    Hi Mr . Ian
    Just wondering can you tell me when you will be posting some more lessons?
    Jacob

    • Ian Juby

      Hey Mister Jacob!
      I’ll be honest with you: I am flat-out exhausted from my job. I have several lessons written, almost ready to film. I am working on them and am hoping to get some out shortly. I’ve just been so tired because of my job driving the trains. 🙁

  • 0

    Jacob

    Ok no problem thank you ☺☻

  • 1

    Cynthia

    just a note….do be careful when choosing your pot and plugging it in…. my class was not so careful (my fault) and fried their arduino…the middle wire goes in to A4… the middle wire…. : (

    • Ian Juby

      Ooohhh! Good point. If youse did, in fact, toast an arduino, most likely it’s just the voltage regulator on the board. So the microcontroller chip itself will still work and is an arduino. In fact, you can use a second arduino to program it. I hadn’t gotten into that part yet, but just keep that board and the microcontroller chip in particular! It’s still perfectly useable on a breadboard! 🙂