1-10PCS 5V Rotary Potentiometer Encoder Module Brick Sensor Development Board

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1-10PCS 5V Rotary Potentiometer Encoder Module Brick Sensor Development Board<br>Product Introduction:<br>1.Operating Voltage: 5V<br>2.Pulse Number for One Circle: 20<br>3.Rotary encoder can count the output pulse times by rotating positively and negatively. This<br>counting method has no limitation, it can reset and come back to the initial status if matching<br>with the key on the encoder (that is to say it will count from 0)<br>4.Operating Principle: Incremental encoder is a kind of rotary sensor which transforms the rotation displacement into a series of digital pulse signal.These pulses are used to control angular displacement. In Eltra encoder, the transformation of angular displacement adopts photoelectric scaning principle.The reading system is based on the radial dividing plate's rotation of alternative light window and non-light window,and it will be exposed to infrared light source at the same time.The light will reflect the picture of plate on the surface of receiver.The receiver is covered by a diffraction grating,and it has the same window width with the plate.The operation of receiver is to detect the change of light plate rotation,then transform the light change into electric change.Increase the low level signal into high level and generate square pulse without any interference.This process needs circuit to deal with.The reading system usually adopts differential method,that is compare two different signals who have the same waveform bu the phase difference is 180 degree so as to improve the output signal quality and stability.Reading is formed on the basis of the difference between two signals,so it eliminates the interference.<br>Size: 4.2x2.4cm / 1.65x1.30inch<br>Note:<br>1.Transition: 1cm=10mm=0.39inch<br>2.Please allow 0-3mm error due to manual measurement. pls make sure you do not mind before you bid.<br>3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!<br>Package Included:<br>1/2/5/10PCS Rotary Encoder Module<br>Payment<br>Shipping<br>Refund<br>Payment<br>We only accept payment through Paypal.<br>Items will go to post within 1-2 business days after payment confirmed.<br>Shipping<br>1. We ship to Worldwide.<br>2. We only ship to confirmed PAYPAL address; your PAYPAL address must match your Shipping address.<br>3. Any non-received items caused by invalid address registered on PayPal are not in our full refund or replacement policy. Shipping fee has including the local handing and packaging fee.<br>4. All the items will be shipping within 1-2 working days after receiving the payment, except some holidays.<br>5. We will not be responsible for any custom delay or tax, because transit time is highly depended and provided by postal Service.<br>6. If you have any problem, please contact us via message, we will reply message within 1-2 working days, please wait for patient.<br>Refund<br>If you can't receive the product within 2 months (60 days), please contact with us,we promise to payback 100% of your money.<br>We ensure our products work normally before post.If the products is broken before arrival to you,all you should do is taking a photo to show us our broken product.We promise to payback 100% of your money.<br>If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please contact us and double check the return address before you return it.<br>If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.<br>On Aug-04-20 at 06:22:10 PDT, seller added the following information:<br>