5v encoder (600PPR) for JOGWHEEL

[mickael]

Hi,

I bought this encoder https://www.amazon.fr/gp/product/B015GYY7XU.

The required Voltage is 5v. My question is Can I power with a 5v and directly connect A and B output to 5v tolerant pin ?

If not what can I put between the A/B output and teensy pin (diode, resistor ?) ?

thanks

[mjs513]

Hi,

I bought this encoder https://www.amazon.fr/gp/product/B015GYY7XU.

The required Voltage is 5v. My question is Can I power with a 5v and directly connect A and B output to 5v tolerant pin ?

If not what can I put between the A/B output and teensy pin (diode, resistor ?) ?

thanks

The answer to that question is it is Teensy Model dependent.

Teensy 4.0, 4.1, Micromod and Teensy 3.6 are not 5v tolerant so you would need a level shifter. For level shifters there are several options I typically use https://www.adafruit.com/product/757. There are other options available like from sparkfun as well.

Teensy 3.5 and 3.2 the pins are 5v tolerant so you could connect 5v output from the encoder directly to the pins.

[mickael]

Thanks I have teensy 3.5.

[PaulS]

This Wisamic encoder [english page] has NPN outputs so you need pullup resistors connected to both output pins.
Here is diagram of a similar OMRON encoder:

Those pullups [e.g. 1K] can be connected to 3V3 and than the output signals are safe for any Teensy.

Regards,
Paul

[mickael]

Thank you Paul for this advise.

[PaulS]

Out of curiosity I purchased a very similar rotary encoder from Amazon.
Hooked it up to a Teensy 3.2 with two 1k pullups from 3V3 to pins 5 & 6. The encoder itsself was powered from the 5V pin.



With this code, the encoder correctly outputted 2400 steps for 1 revolution.

#include <Encoder.h>
Encoder myEnc(5, 6);

void setup() {
}

void loop() {
  long newPosition = myEnc.read();
  Serial.println(newPosition);
  delay(10);
}

Hope this helps.
Paul