blog.jmp.no

Electronics, coding and hacking. And ADD.

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In case of zombie apocalypse, part 2

March 22, 2012 -

Alternative title: Minimalist PCB etching with vinegar, hydrogen peroxide and salt.more


8-bit R2R ladder

September 27, 2011 -

As I've mentioned earlier, I'm an active breadboarder. Having nothing to do, and being a while since I did my own R2R ladder (DAC), this day felt like a good day to refresh those ole' skills. Using an ATmega8 (for a change) and a handful of 1K and 2K2 resistors, an 8-bit R2R ladder was born. The ATmega outputted a…more


Getting to know my MSP430

September 19, 2011 -

Got one of these the other day. As an Atmel guy (if you look aside my brief flirt with the Microchip PIC controllers in the beginning), I was curious what the world of TI looked like. A tip led me to the MSP430 Launchpad, and at the cost of $4.30 (+ shipping) I had to get one (I actually bought …more


The ATPuter

September 19, 2011 -

Here's another oddity I never really wrote anything about. This didn't catch on to me. Don't get me wrong, but it was a "too easy" approach towards building my own computer. I'll explain why.more


The decoder

September 19, 2011 -

This was a simple project I finished a while ago, but never wrote anything about.more


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