Tag Archives: Seeedstudio

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

Posted on August 9, 2009 by robert

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 →

Posted in DIY., Electronics., Fix me. | Tagged , , , , , , , , | 2 Comments

Seeedstudio Super White LED lighting bar 3W — first test

Posted on July 20, 2009 by robert

I finally got my trusty digital power supply back. It must be more than 10 years old by now, but it still works like on the first day ;-) Don’t remember how much I payed for it, but looking at … Continue reading →

Posted in Electronics. | Tagged , , | 17 Comments

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

Posted on July 12, 2009 by robert

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 →

Posted in DIY., Electronics., Fix me. | Tagged , , , , | 2 Comments

Jyetech AVR digital oscilloscope DIY KIT — Firmware upgrade odyssey

Posted on July 9, 2009 by robert

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 →

Posted in DIY., Electronics., Fix me. | Tagged , , , , | 5 Comments

8×8 RGB Matrix V3 + KICAD + SMD — part 2

Posted on March 31, 2009 by robert

Lost in some office, surrounded by clueless clerks, and low on patience… This is my adaption of the famous tag line of Army of Darkness: “Lost in time, surrounded by evil, and low on gas…”, which describes what I’ve been … Continue reading →

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

8×8 RGB Matrix V3 + KICAD + SMD — part 1

Posted on February 26, 2009 by robert

Now that I’ve started to work with KICAD, I’ve made the transistion to SMD parts and finally got my switch back. I hade to remove it in V2 as the DIP parts took too much space. The quartz is back … Continue reading →

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