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A comment on Ask HN: What extra-ordinary presents can you think of for kids?.
An Arduino starter kit with plenty of servos, sensors, etc. All run off a few batteries, and relatively safe.
It's amazing what kind of instrumentation you can get for less than $100 these days.
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An Arduino starter kit with plenty of servos, sensors, etc. All run off a few batteries, and relatively safe.
It's amazing what kind of instrumentation you can get for less than $100 these days.