Author Archives: joe

I bit the bullet and bought the “Engineer PA-09” crimping pliers for my board connectors. Just made a sample cable and I’m already pleased with the results. Totally worth the cost.

8-channel DAC and some connectors were added.

Opto isolator and 5-pin DIN connector.

Two rotary encoders and two potentiometers.

1st http://youtu.be/xVBLWFrjeA0 2nd http://youtu.be/hxNJDUi-5yA

So this was done quite a while ago… it’s an Arduino wavetable based oscillator. In this instance, I have two oscillators running out one PWM channel. The wavetable is 8-bit with 256 sample points. At the moment I have three waveforms to choose from: sine, triangle, and sawtooth. I’ll be harvesting others to play with. […]

I stayed up a little late last night and added the LCD I mentioned in my last post to my setup. I left the LEDs in the circuit to help debug the signaling to the panel which was a good thing as when I first powered the circuit, nothing showed up on the LCD. After […]

So two weeks ago I showed the sound gizmo I sent my friend. While it’s a neat sound maker, it’s decidedly weak in the user interface department. There are three items I want to add to make it more musician friendly, namely: A display to show parameters and options Knobs and buttons to adjust parameters […]

Last week I mailed a very late birthday present to a friend. It was the first real “sketch” of the noise maker I’m getting the confidence and experience to build. In the process, I got practice soldering, tweaking the filter by looking at the output with an o’scope, reading resistors and the like. Lots of […]