studio ponnuki is a small creative studio hidden in the beautiful mountains of the kootenays


Designer / Hacker / Maker

Loves green tea, meditation and noise


Photo / Fashion / Accounting

In house yoga teacher and Thais massage, run


Drawing / Dirt Pudding / Maker

Loves green tea, meditation and noise



KindleBerry Pi

I am happy to announce that this article got publish in Hacker montly We left our little studio in the Kootenays last July to travel throughout Europe, traveling to discover about new media,…
Read More

open source graphic design

How to work as a Graphic Designer without sleeping with Adobe I am just now completing a certificate in graphic design at the online school, and although I have come to like the Adobe Cre…
Read More

Find Us

We are based in one of the most beautiful places on earth. Come visit us!

February 20, 2010

thinkering with arduino ~ lcd monitor and some knob

So I’ve been playing with an arduino lately – with the help of pure dyne to connect to it.

The arduino is a toy for hacker – for hardware hacker or electronic enthusiast. I got it on ebay with an lcd screen with it and since I am starting to built a midi mixer (with some doepfer diy kit) I wanted to test some knobs and pots actions.

I’m not at the point to send signals from the arduino to the computer just yet – I am sure it’s not hard but haven’t been there. So in order to test any knob action I decided to use the lcd. To make thing even easier I bough some premade potentiometer with a shield that connects the potentiometer to the arduino. I agree that is being really lazy because when you start using the arduino you find quite early that connecting a switch or a potentiometer is the ‘hello world’ of arduino, or in layman term ‘it just take 3 wires and a resistance’. Cutting the crap here is what I did:

  • arduino mega board
  • 9v battery connector
  • shield for knobs and sliders
  • LCD shield to show the result

Without any idea of what I was doing I made a sandwich with the 3 board, stacking the sensor shield in between the arduino and the lcd shield, then connecting a knob to the first connection. I loaded the default example that comes with the lcd screen. At first the button on the screen wouldn’t work anymore. I realized that it was connecting on the same ‘in’ as my potentiometer. So playing around with the potentiometer I saw it was changing something on the screen! Hurray!

Hacking the example a little, to create something that make sense I ended up prototyping a volume knob that would indicate the level on the lcd screen. That was fun!

It was fun to realized that the shield are stack-able. Of course at this point this system is not usable it was mostly to test the interactivity with some knob action. Since I got an Arduino I can’t realize how easy it is to create fun stuff. This is also my first step at creating a complete usd midi mixer system to work with Mixxx