QUERY · ISSUE

pulse counter quadrature encoder

openby ZeshuiLiopened 2019-10-15updated 2025-10-03

enhancement

How can I use this firmware to get the output of the quadrature encoder

CANDIDATE · ISSUE

Request to integrate quadrature decoder support via pulse count unit into ESP32 port

closedby sengpwopened 2020-02-03updated 2025-10-03

port-esp32

For ESP 32 exist a solution to use the on chip pulse counter modules (PULSE_CNT) for interfacing multiple (up to 8) quadrature encoded signals. I used the code successfully and integrated it into lv-micropython V1.12.
Think many people would benefit from this code being available within standard micropython too.
For description of module, integration and code see:
https://forum.littlevgl.com/t/example-for-working-with-a-rotary-encoder/1509/20

best regards,

Peter # @

Assessment

S Sonnet · high

Both issues concern quadrature encoder support via the ESP32 pulse counter (PULSE_CNT) peripheral. However, #5214 is a vague support question asking how to use existing firmware for encoder output, while #5602 is a feature request to integrate quadrature decoder support into mainline MicroPython. Neither resolves the other: #5602 doesn't answer #5214's question, and #5214 doesn't duplicate #5602's feature request scope. They share the same hardware domain and likely the same underlying desire for PULSE_CNT-based encoder support, but address it from different angles.

Suggested action

Link the two issues for context. #5214 may be closeable as a support question (not a bug/feature), directing the user to #5602 or the forum post referenced there. If quadrature encoder support has since been merged, both could be closed as resolved.

pulse counter quadrature encoder

Request to integrate quadrature decoder support via pulse count unit into ESP32 port

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