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My only complaint are when things are productized with an Arduino or equivalent shoved into them when the cost could be drastically cut by using a lower powered and cheaper set of parts.



For small runs this is really the cheapest option, though. Especially if you account for time spent on board layout.


I went to a maker fair last year - one maker's club was showing off their arduino-powered... doorbell. And no, it wasn't doing anything fancy like connectivity, they built it for the workshop front door.


Speaking as someone who once implemented PWM brightness control for keyboard LEDs via a hacked copy of xset(1), it's hard for me to judge anyone on the basis of overengineering, and yet...




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