Tag Archives: soldering

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

Note to self: 26.0V >> 2.60V — A short ChipQuik review

Posted on August 4, 2009 by robert

Nothing good can come from a freak idea after midnight ! I was tired and should have gone to bed. But when I get too tired I can’t fall asleep anymore and turn into a zombie, looking for something stupid … Continue reading →

Posted in Arduino., Electronics., Fix me., Soldering & PCBs. | Tagged , , , , | 6 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 , , , , | 6 Comments

RoHS compliant soldering

Posted on September 13, 2008 by robert

When I decided to revamp my old hobby called electronics, I decided to be RoHS compliant and bought lead-free solder. make: Edsyn type: SAC8250 alloy: Sn95.5Ag3.8Cu0.7 flux: F-SW34 (no-clean) melting point: 217°C As my good old soldering iron works at … Continue reading →

Posted in Electronics., Soldering & PCBs. | Tagged , , | 3 Comments