Electronics > Beginners

Making a µC act as a HID?

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viperidae:
I wouldn't be worried about a millisecond or so of latency.
Isn't the default polling frequency for USB only 125Hz? That's 8ms between each poll to the HID.

Boschi:
about an uC with USB support able to interface different protocol and easy to use, there is the arduino leonardo with the atmega32u4. its the same as an arduino uno (as ram and rom).

i know an arduino it almost never looks good as a permanent solution, but this is a temporary solution if i understand correcly.

also, probably you can make the atmega do all the work, even read the fingerprint sensor.

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