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Product Description
Incremental rotary encoders 100P/R , AB two phases
Product Name:Incremental rotary encoders 100P/R , AB two phases.AB two -phase quadrature output rectangular pulse, the circuit output is NPN open collector output type .
DC 5-24v Wide Voltage Power Supply 6mm Shaft 100P/R
Package content：1 x Incremental Rotary Encoder ；Net Weight : 130g
Encoder size
Encoder size: 38 x 35.5mm/1.49" x 1.39" ；Shaft: 6 x 15mm/0.23" x 0.59"；Axis stopper platform: High 5mm, 20mm；Power source: DC 5-24V；Maximum mechanical speed: 6300 R / min.
Material
This incremental rotary encoders Exquisite workmanship
It can be used to measure the rotational speed, Angle and acceleration of the object and the length measurement.
Connection
Connection: white = A phase, Green = B phase, red = power +, black = V0 ； Note: AB two -phase outputs must not be connected directly to VCC, otherwise, they will burn the output transistor.
rogwabbit
2025-07-31 13:48:47
For those that need assistance here is what you need to know:1) they work best at 6v and up. This is only required to power the board and transmitting LEDs. If has nothing to do with the output. You can take apart and wire directly to the output of the 5v regulator and supply it 5V. But nothing lower.2) these are open collector NPN. This means the signal wire is connected to the collector of an NPN transistor. So you can use it with 3.3v, 5v, etc for control logic but you need to either tell your microcontroller to use a PULL UP resistor, or install your own pull up resistor that connects from the control voltage say 3.3V to the control/pulse wire. Then connect the grounds together and hook the control wire to the microcontroller input pin.I'm not certain the minimum voltage for the control transistor but I would guess anything over 1.5v would probably be fine.I use them on an esp32 and use the internal pull up on the input pins. The esp32 has a built-in counter up to 80Mhz that can be used for this purpose. These are smooth rotation, no exact stop points. So they work well for free spinning applications like motor control. They are not great for a knob because there are no detents. But if you wanted those there are other options. I put a pulley on it with GT2 belts to the wheels of my robot and they work perfect for that task.I hope this helps inform future customers.
Anon
2025-07-16 12:56:51
If you are having problems using this at 5V, it's because there is a generic LM7805 as a regulator for the internal power supply. The regulator will be in drop out unless you give it around 7V. This should be rated for 7V-24V. They are not suitable for 5V operation. The outputs are also open collector so you will need pullups to your desired logic level to get signals out of these. Attached are some pictures of the nice internal construction and the quadrature output signal.
Mir
2025-03-06 11:51:06
As other customers have said, these encoders work much better with at least 12 vdc driving them. Machining on the hole pattern looks suspect.I have reverse engineered a rough drawing for mounting. Use at your own risk. The mounting holes in particular are questionable. I recommend to the vendor they provide a technical drawing of the front face at least.
Jeffro
2025-02-16 12:37:51
I heavily modified an old Ten Tec Argosy ham radio transceiver and this was perfect for the job. Slick as snot on a doorknob! VERY easy to turn so probably not good for mobile appllcations but other than that, just the ticket.
Squirtle
2025-02-08 18:07:43
I use this is a commercial application with a 65mm wheel and arduino mega. The wheel has literally rode over 20 miles of product and the rotary encoder is still reading very accurately.
Johann
2025-01-21 18:54:13
As others have said, this needs more than 5V for stability and has open collector outputs. If you rewire power to the output of the regulator instead of the input, and move the outputs to these handy through holes on one side, you'll get 0 to about 2.6 volts on the outputs, which works nicely with my microcontroller without pullups.
Patrick
2025-01-13 15:32:43
Tried using this for an application but couldn't get unit to read consistently. Documentation didn't match what was seen on the internet. So it may had failed due to shorting of while wiring.
Customer
2024-12-27 12:00:34
ok.thanks.
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