$15 Rotary Quadrature Encoder 400 PPR

ercoerco Posts: 19,793
edited 2013-11-08 - 20:15:31 in Accessories
http://www.ebay.com/itm/Encoder-400P-R-Incremental-Rotary-Encoder-AB-Phase-Encoder-6mm-Shaft-/181177866126

Relatively cheap, this is the first time I've seen them. I ordered one. Maybe they'll plummet in price as the stepper motors and ultrasonic sensors did over the next few months. :)

Looks to be a ball bearing unit. Might be useful on a robot as a non-powered idler wheel to measure distance for dead reckoning, I reckon.

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