Tag Archives: AVR

ATtiny4313 on linux

Some time ago I had acquired an ATtiny2313 breakout board and was running into memory limitations. I ordered 2 ATtiny4313 on ebay, but could compile any code for them. As it turns out after a longer odyssey, it seems that … Continue reading

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PWM again…

What to do if you favourite microcontroller doesn’t have enough hardware PWM pins? Software driven PWM of course. There many absolutely dumb ways to do it, and I’ve probably tested all of these. They can be classified as “brute force”. … Continue reading

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ATtiny 2313 + MBI5168 + 3W LED

Towards re-illuminating my kitchen workspace…

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Tiny2313 Header Kit — A short review

Today I got mine! What am I talking about ? THIS ! Ordered on a Sunday, delivered 2 days later ;-) It was shipped in a padded envelope, all the parts were protected inside an metalized electrostatic shielding bag (not … Continue reading

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Succumbing to the XMAS-lights madness

“This time of the year” is approaching __again__. Where did all the time go? I remember having seen my neighbours’ light shows and illuminated windows as if it had been just yesterday. But this year I will fight back! I’ll … Continue reading

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More light! — Prolly my LAST large perfboard prototype

I’m still alive — physically that is. Recently I felt the urge to do some soldering an I promptly succumbed to it. 3 days later I was done and totally fed up with having to solder using the “W-word”. The … Continue reading

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RGB LED Ring — now available as DIY SMD kit !

The RGB LED Ring is available as a DIY SMD kit! Honestly, ignore the next two paragraphs :-) Well as of next Monday 18:00 CET to be honest (May 17th 2010). I’ve already added it to zen-cart, but it’s still … Continue reading

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Nitelite upgrade — another RGB thingy

http://www.youtube.com/watch?v=jU23Af8sHPo

A few days ago I visited my parents. The main purpose was to ‘deposit’ my new Lecroy WaveAce 224 DSO. I bought it as a gift for myself, but I haven’t fulfilled all criteria to receive the gift yet. Therefore … Continue reading

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Playing with the OSCCAL register of an ATmega168

I was having problems with the “led ring” boards. Their internal oscillators were not ticking with the same speed and required constant re-syncing. I tried to improve the situation by recalibrating by adjusting the OSCCAL registers. Recalibration can be done … Continue reading

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RGB LED Toy — It works

Well… sort of. I finally got the PCBs from sparkfun! Almost 6 weeks, 9 days only for the “air mail” letter to get to me. Maybe my “dear friends” at the customs office were “busy” again. Unfortunately my request to … Continue reading

Posted in Electronics., Soldering & PCBs. | Tagged , , , , , , | 14 Comments

RGB LED Toy — first order at BatchPCB

For quite some time I have 19 SMD RGB LEDs sitting in one of my electronics boxes. It used to be 20, but I’ve ruined one while trying to solder it to perfboard. They are 3 single LEDs put into … Continue reading

Posted in Electronics., Soldering & PCBs. | Tagged , , , , , , | 13 Comments

IKEA SAMTID modification — part 2

Not having the right tools is such a pain. The modification I’m planning to do requires cutting 72 round 35mm holes into the white plastic foil that forms the Ikea SAMTID’s “head”. I tried to do that with a scalpel, … Continue reading

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Jyetech AVR digital oscilloscope DIY KIT — trying to fix it – part 2

Maybe you remember my last post about the Jyetech oscilloscope and it’s weird behaviour. Not all of them are strange, as the free replacement DIY KIT I received from them works fine. At that time I suspected a sick ATmega64 … Continue reading

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Jyetech AVR digital oscilloscope DIY KIT — trying to fix it – part 1

The symptoms since a firmware upgrade (and downgrades, re-upgrades…): strange characters on the display for SEC/DIV system freezes +/- buttons are ignored (but still work physically) the ADC chip doesn’t get a CLK signal during a freeze My theory: The … Continue reading

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Jyetech AVR digital oscilloscope DIY KIT — Firmware upgrade odyssey

I bought the DIY KIT at seeedstudio recently, as I needed to feed my soldering obsession. Here are some images of the KIT coming right out of the box: I had to use my milling machine, because the front panel … Continue reading

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myAVR MK2 USB PLUS — part 1

Some time ago I won the electronics competition on expli.de and got the “myAVR MK2 USB PLUS” KIT as a reward. I haven’t had much time to deal with it yet, so I’ll just show some images instead. It comes … Continue reading

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IKEA SAMTID modification — part 1

I have 3 Ikea Samtid lamps. They’re affordable, useful and the design is timeless. One is in my living room and started to bore me. That has to change. As the lamp can be dismantled very easily it’s begging for … Continue reading

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Expli.de – electronics competition — my my ;-)

I’m happily awaiting the prize ;-) Now I’ll finally be able to learn to work with AVRs “the right way” (LOL). For links to the other awarded projects, just click here. “myAVR MK2 USB PLUS” development KIT – kindly sponsored … Continue reading

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128 = 64 x 2 — Extending to larger matrix displays

I haven’t had the nerve to test if my 8×8 PWM code could cope with a double sized matrix, but it turns out someone else has already had fun doing that. Have a look at dirk’s blog for more information. … Continue reading

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Showing live video on my 64-pixel display

Hi again! I really can’t believe it myself, but it works just fine ;-) All of this is coded in Perl and is only tested on linux. The program uses these modules, if you don’t have them install from CPAN … Continue reading

Posted in Arduino., Electronics. | Tagged , , , , , | 12 Comments