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Unread 04-02-2016, 09:39
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Re: Finding RPMs with encoder


CPR is cycles per revolution. One cycle has a rising edge and a falling edge on each channel.

The number of "counts" per rev depends on the way you decode it.

Counting rising and falling edges on both channels will give you 480 counts per rev

Counting rising and falling edges on one channel only will give you 240 counts per rev

Counting only rising - or falling - edges on one channel only will give you 120 counts per rev


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