Further integration for my npSynth, the raspberrypi is now talking to the arduino which sends out PWM signals smoothed (or smothered;) to DC to the analog modules.

I also found out that the 7805 regulator i use to convert the 12v input to 5v to power the PI is VERY inefficient (supposedly 50% of the power goes to heat!) and gets very hot for even the 500mA needed. I already found a more efficient switching regulator which i will use.

As a shameless plug i had one of our data loggers equipped with a KType probe so i could monitor the regulator temperature. It was probably below the 125 the 7805 is rated for but far too high to be used. The switching one is supposedly a lot better.

I needed the 12V so i can have only one power adapter as the analog filter boards take 12V as input.

Next time I'll go over the software parts a bit, how they work together on the raspberrypi.

Still thinking about how to integrate it physically, though:)

And even more important, will there even be a touchscreen, or will it all be controlled via websocket on your phone/ipad/40" tv:) ?

Find out on the next episode.