5v Rotary Encoder Rotating Potentiometers Knob Caps Digital Control Module B8c5

US $6.38

shanghai, China
Jun 21st

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Description Description&Previewshipping&policyDescription: Working voltage: 5V Number of pulses per revolution: 20 Rotary encoders can count the number of pulses output during forward and reverse rotation through rotation. Unlike a potentiometer, the rotation count is not limited. With the buttons on the rotary encoder, it can be reset to the initial state, that is, counting from 0. working principle: Incremental encoder is a rotary sensor that converts rotational displacement into a series of digital pulse signals. These pulses are used to control angular displacement. The conversion of angular displacement in the Eltra encoder adopts the photoelectric scanning principle. The reading system is based on the rotation of a radial index disk (code disk) composed of alternating light-transmitting windows and opaque windows, and is irradiated vertically by an infrared light source at the same time, and the light projects the image of the code disk onto the surface of the receiver. . The receiver is covered with a layer of diffraction grating, which has the same window width as the code disc. The job of the receiver is to feel the changes produced by the rotation of the disc, and then convert the light changes into corresponding electrical changes. Then make the low-level signal rise to a higher level, and produce a square pulse without any interference, which must be processed by electronic circuits. The reading system usually uses a differential method, that is, two different signals with the same waveform but a phase difference of 180° are compared in order to improve the quality and stability of the output signal. The reading is formed on the basis of the difference between the two signals, thereby eliminating interference. Package includes: 1x Rotary encoder Preview: Thank you for your purchase Problems? You can follow below process to chontact us. There is a time zone difference,but we will do our best to quickly response to your questions: Shipping We will arrange shipping for you within 24 Hours after payment cleared except the holidays. We always send the item to the address you give us on PAYPAL to ensure the security of the item. If you have changed your address, or want us to ship to another address, please change to the new address when you pay us with PAYPAL, otherwise we will not be responsible if the package is lost. Payments We accepts Paypal only If you have any questions about the payment,please contact us through eBay message. Import Duties In case some duty is due Upon delivery, it is your responsibility to meet that expense and this may cause delays to delivery schedule and you may have to pickup goods at the customs office. Terms & Conditions By bidding on this item,the Buyer agrees to all of the terms and conditions as outlined in this listing .please ensure to read and agree to All eBay terms and Conditions before bidding. All pictures are for illustration purpose only and Colours may vary slightly. Our store obeys all eBay Rules and Policies. Returns Policy To Return an item you must contact us and take photos of your item to clearly show any damage or unusual aspects of it. Approved returns will be subject to inspection on arrival. Items must be returned in original condition with all original packaging. All shipping and handing charges are non-refundable Return delivery costs are the responsibility of the buyer. We will cover the cost if sending replacement/repaired items. Within 7 days after receiving your products, we offers a no-hassle 7 day exchange/replace only if your items are found to be defective by manufacturer.

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Type	as shown
MPN	Does Not Apply
Brand	Unbranded
Country/Region of Manufacture	China
UPC	Does Not Apply
EAN	Does Not Apply