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Update quickref.rst
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@IhorNehrutsa
IhorNehrutsa committed Nov 1, 2024
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16 changes: 10 additions & 6 deletions docs/esp32/quickref.rst
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Expand Up @@ -326,17 +326,21 @@ Use the :ref:`machine.PWM <machine.PWM>` class::

ESP chips have different hardware peripherals:

======================================================= ======== ======== ========
Hardware specification ESP32 ESP32-S2 ESP32-C3
ESP32-S3 ESP32-H2
------------------------------------------------------- -------- -------- --------
======================================================= ======== ======== =========
Hardware specification ESP32 ESP32-S2 ESP32-C2
ESP32-S3 ESP32-C3
ESP32-P2 ESP32-C5
ESP32-C6
ESP32-C61
ESP32-H2
------------------------------------------------------- -------- -------- ---------
Number of groups (speed modes) 2 1 1
Number of timers per group 4 4 4
Number of channels per group 8 8 6
------------------------------------------------------- -------- -------- --------
------------------------------------------------------- -------- -------- ---------
Different PWM frequencies = (groups * timers) 8 4 4
Total PWM channels (Pins, duties) = (groups * channels) 16 8 6
======================================================= ======== ======== ========
======================================================= ======== ======== =========

A maximum number of PWM channels (Pins) are available on the ESP32 - 16 channels,
but only 8 different PWM frequencies are available, the remaining 8 channels must
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