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BOM is $5 or so, PCB is $1

- am author but HN is limiting how fast i can reply :(

Very nice! At that amount your biggest expense would be in time.

Have you ever considered offering this as a service to others? I'm guessing you could make some pretty big savings in parts too if you were ordering in bulk.

I think this would defeat the purpose of showing off your skills.

I think this would defeat the purpose of doing things just because you want to!

I am going to have a small batch made now, as I mentioned in the article. Then we'll see

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