GNU Radio Morse code decoder block

November 28, 2022

I've been playing with GNU Radio and an SDR and decided to try out their "capture the flag" challenges.

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Teardown of a failed Walmart Great Value LED bulb

November 18, 2022

One of the LED bulbs failed after about 2 years, far short of it's claimed 9 year rating, so I decided to see how they are built.

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Dahlgren System 300z engraver spindle pinout

November 17, 2022

I had to take apart the spindle again because one of the hall sensors disconnected...

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