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WARNING: This product can expose you to chemicals including Nickel which is known to the State of California to cause cancer and which is known to the State of California to cause birth defects and/or other reproductive harm. For more information, go to www.P65Warnings.ca.gov Click to see Why is this here?
As of August 2018 the State of California has changed the requirements of the “Prop 65” law. We now must list on our website any possible chemicals the can cause cancer, birth defects or reproductive problem.
As an example: ABS plastic contains styrene PVC wire insulation can contain Di(2-ethylhexyl)phthalate (DEHP) electrolytic capacitors can contain Ethylene glycol Brass can contain Lead flame retardant pc boards can contain Tetrabromobisphenol A (TBBPA) Aluminum alloys can contain Chromium To put it simply we are a small company and do not have the resources to test every single part, so we list every thing as hazardous. Please recycle all electronic parts responsibly and under no circumstance eat, drink or smoke these parts and wash your hands after touching! |
Product Reviews Click here to review this item | ||
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Revision of earlier Review | |
| Only pulses when wheel is rotated off of the detents. That is to say, A and B outputs are normally low .12V. While A\ and B\ are normally high 3.9V. When wheel is rotated the outputs functions as the timing diagram shows. Encoders I have used, hold their states when they are not rotated. However, yes, it does appear that all of the A and B pulses are correctly outputted. I needed to look at the edges. The solution for my application was to not use the micros edge interrupt, but to use a simple edge D flip-flop to determine encoder direction and a divide by 2 for rate > that holds the channel state, doesnt force to 0 <. | ||
| - Mark, MI | ||
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[not review] Info re: connection of various types of encoders.. | |
| Many such encoders are open collector output, which requires a pull-up resistor btwn V+ and each A or B quadrature output. Some encoders use push-pull outputs not requiring pullups. Many surplus vendors may not know exact details of their bulk lots. You might have to experiment. Here is a helpful document/explainer: https://www.cuidevices.com/blog/comparison-of-common-encoder-output-signals#push-pull-outputs | ||
| - Billl W., CA | ||
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Cycles similar to switch type encoders | |
| As others have pointed out, this encoder rests at the detent points with both outputs low. However, if you turn the knob slowly, you will see all four states of the cycle. This is similar to switch type encoders with detents, at the detent position both outputs are either zero or high depending on the logic levels of the device. The result will be four state changes per detent, your encoder logic code may count by 2 or by 4 counts per detent. So it should work with arduino encoder libraries, especially those that use interrupts to trigger the state change. However, you may have to divide the output by 2 or by 4 to get one count per detent. This encoder is a nice solid unit, with a good feel to it. | ||
| - kenneth scharf, FL | ||
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Not a square wave output | |
| This is a very nicely constructed device. Unfortunately it does not behave like any other optical encoder I have seen. Between detents, both the A and B outputs are logic low, as reviewer Mark has noted. As the knob/shaft Is rotated over the detent, pulses are produced and a rising edge on A for example occurs with B high for CW rotation and with B low for CCW rotation. Because of this behavior, with an Arduino it is not possible to use an encoder library. Interrupt driven operation should work though. On my unit, I do see occasional double pulses on A when crossing a detent, which is a fault. | ||
| - Ben, CT | ||
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Kind of Works | |
| Only pulses when wheel is rotated. That is to say, A and B outputs are normally low .12V. While A\ and B\ are normally high 3.9V. When wheel is rotated the outputs functions as the timing diagram shows. Encoders I have used, hold their states when they are not rotated. | ||
| - Mark, MI | ||
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Verified Purchase | |
| Good service from seller. Thank you and GOD bless. | ||
| eBay | ||
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Verified Purchase | |
| Good seller. Good parts. | ||
| eBay | ||
