I’ve waited almost 8 weeks… and finally the reward ;-)
And I’ve already managed to solder the LT1618 boost converter chip to one of these. Compared to soldering TQFP-32 packages this screams for solder paste and a hot air station. You need patience and flux… LOTS!
This needs a very steady hand. Even with a quite pointy [...]
robert DIY., Electronics., PCBs 'n stuff. adapter, MSOP, SMD
Hi,
I’ve been planning to build a prototype driver for the Seeedstudio LED module (1, 2) for quite a while, but I just cannot get MSOP-DIP adapters that are reasonably priced. The cheapest single one I could find was 2.50€! The LT1618 boost driver chip I intend to use only comes in a MSOP10 package, and [...]
robert DIY., Electronics., PCBs 'n stuff. adapter, MSOP, SMD
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, but failed miserably. Getting holes in there is not a problem, but getting them to be [...]
robert Arduino., DIY., Electronics. AVR, ikea, LED, modding, PWM, RGB
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 cpu and had all sorts of plans to detect what components might be bad.
Long story [...]
robert DIY., Electronics., Fix me. AVR, ChipQuik, desoldering, DSO, jyetech, rework, seeedstudio, SMD, soldering
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 ATmega64-16AU is overclocked to 20MHz, which is a good reason for failure. But all the other KITs seem to work, so [...]
robert DIY., Electronics., Fix me. AVR, DSO, jyetech, seeedstudio, soldering
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