relaxing kit build: signal generator

This kit was among a bunch of donations to the channel recently. It calls itself a "DDS signal generator".

There's not a huge number of components, so I would call it relatively beginner friendly - but I still managed to make a rookie mistake.

web pages referenced in this video:

https://scienceprog.com/avr-dds-signal-generator-v20/

https://en.wikipedia.org/wiki/Direct_digital_synthesis

https://en.wikipedia.org/wiki/Resistor_ladder

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This isn't the only way to do it. It's probably not the best way to do it. But it's how I did it. ... https://www.youtube.com/watch?v=-_sNoOH6k_g