Rotary Encoder with Switch
$1.95 USD
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Rotary Encoder with Switch
This is a 20 step rotary encoder. A rotary encoder is similar to a potentiometer, except that it turns endlessly and reports "gray code" which allows an MCU to keep track of both direction and number of steps. These are high quality mechanical encoders, with integrated switch (push down), and come with the hardware pictured.

EagleCAD part: ALPS_EC12E_SW is a perfect match for these.

* Arduino Tutorial
* bildr Tutorial

Specifications:
* Rotary Shaft Length: Approx. 12mm
* Shaft Full Length: Approx. 20mm
* Shaft Diameter: Approx. 6mm
* Size (L x W): Approx. 15 x 11mm
* Output: 2-bit gray code
* Closed Circuit Resistance: 3 ohms maximums
* Max. Rating: 10 mA @ 5 VDC
* Operating Temperature Range: -30 to 70 degrees celsius
* Storage Temperature Range: -40 to 85 degrees celsius
* Rotational Life: 30000 cycles minimum
* Switch Life: 20000 cycles minimum
Note: Schematics, source files, software, and datasheets are provided rovided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. in no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the product or the use or other dealings in these products.