Breakout board for Nokia 1202 LCD

I’ve been using Nokia 5110 LCD screens for a while now they’re 84x48px have a built-in back-light and are really easy to use and quite cheap.  Recently though whilst working on my drum machine I found myself wishing for a few more pixels.  I want to show a “pattern view” of 16 tracks with 16 steps plus some additional information and 84×48 was getting too tight.

IMG_3618

This isn’t a Nokia1202, this is a Sparkfun Nokia 5110 breakout

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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.

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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!

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Simple PWM control for LED strip

I have been playing around with building a lamp for my desk using a LED strip and constant current driver that I bought from Deal Extreme a while ago combined with a PIC12f683 to provide variable brightness via Pulse Width Modulation (PWM).

The demo using a plain old green LED as the output.

[UPDATE OCT 20 2010] I’ve updated the firmware for this project to include new features. More info and firmware download here.

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