Drum Machine prototype – schematic

I found some time to convert my hand drawn notes into a proper Eagle Cad schematic.

PIC24 drum machine prototype

This is a project I’ve been working on for over a year but haven’t had the time to complete yet. Electronics takes second place to children…

It’s a mini drum machine modelled on classic machines like the Roland TR808. My version is digital, playing samples rather than analogue and uses a single pic24 to do the work.

Firmware for lighthouse v2.

Here’s the firmware for my V2 lighthouse PCBs.
If you bought a PCB from me I should have already sent this to you, but I though I had better post it here just in case.

Download the C source and Hex here

Charlieplexed lighthouse version 2 PCBs have arrived

A long exposure makes it look quite funky

My version two charlieplexed lighthouse circuit PCBs (charliediscs) have arrived back from the Seeedstudio’s fab. I used the same deal as for my last boards, this time it took around 3 weeks in total.  That’s pretty good for 20USD!

What do you get if you cross a Tobo with a Billy?

A new TV unit! It's a hybrid of an IKEA Tobo, a bit of Billy and some pine boards.

We’ve been telling ourselves that we’re going to get a new TV for a couple of years and we finally did it.  We’re now all super funky flat-screened, just like the popular kids are doing!

My first professionally made PCBs

A stack of PCBs ready to be assembled

I thought I’d have a go at getting my PWM controller PCB made professionally.

Updated code for simple PWM LED controller

I’ve updated the code to my LED strip driver and included a few new features.

Here’s a quick demo video.
[UPDATE 7 Mar 2011] Added input/output graph plus link to download LUT calc excel file.
[UPDATE : DEC 6 2010] I’ve had some proper PCB’s made for this circuit. More info here.