There are total 5 pins on the encoder, 3 of them on one side are for rotary encoding which need a simple circuit to supply DC 5V, the remaining 2 pins go short when they are pressed.
- 10+: $3.33
- 20+: $3.15
- 50+: $2.96
In the middle of 3 pins' side is COM port connect to GND .
And other pins (A and B same side of GND) separate pull to +5v via 10k ohm resisters .
Connect the A and B directly to Arduino IO pins.
Arduino usage: http://www.arduino.cc/playground/Main/RotaryEncoders
|Dimensions||50mm x70mm x11.7mm|
|Rotary Encoder with Switch||1|
LEARN AND DOCUMENTS
SHARED BY USERS