single pin encoder support

[tinyboxxx]

Hi, Nice work!

I want use this in my speedo project, is it possible to attach a single pin encoder? I only need one direction.

I didn't find related ways to do it in document.

Thanks!

[madhephaestus]

https://madhephaestus.github.io/ESP32Encoder/classESP32Encoder.html#ac565f0e078a89ab9ddcd8b6890365751

[tinyboxxx]

thanks for your quick reply,

I did noticed that attachSingleEdge function, but one question:
Since I only got one signal pin, but which pin should I put into bPinNumber ?

thanks again.

[madhephaestus]

The same pin number :)

…

On Wed, Sep 8, 2021, 9:15 AM tinyboxxx ***@***.***> wrote: thanks for your quick reply, I did noticed that attachSingleEdge function, but one question: Since I only got one signal pin, but which pin should I put into bPinNumber ? thanks again. — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub <#47 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAJSKRVGZFM4LQTYKENNBITUA5OYBANCNFSM5DO3BHEQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[tinyboxxx]

huge Thanks!

[tinyboxxx]

Hello, I got error when ESP32 booting, in serial.

E (719) pcnt: pcnt_unit_config(57): PCNT pluse input io error
E (720) pcnt: pcnt_unit_config(57): PCNT pluse input io error
E (720) pcnt: pcnt_unit_config(57): PCNT pluse input io error
E (725) pcnt: pcnt_unit_config(57): PCNT pluse input io error

ESP32 does keep running. Any idea what cause this error? Does some GPIO I can't use?
Thanks.

Code I use:

#include <ESP32Encoder.h>
ESP32Encoder encoder_speed;
ESP32Encoder encoder_rpm;

//in setup:

  ESP32Encoder::useInternalWeakPullResistors = UP;
  encoder_speed.attachSingleEdge(27, 27); // SPD
  encoder_rpm.attachSingleEdge(34, 34);   // RPM

//in loop:
        PulseCounter_SPD = (int32_t)encoder_speed.getCount();
        PulseCounter_RPM = (int32_t)encoder_rpm.getCount();