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2 changes: 1 addition & 1 deletion docs/source/api/sigmadelta.rst
Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@ This function is used to setup the SigmaDelta channel frequency and resolution.

.. code-block:: arduino

double ledcSetup(uint8_t channel, double freq, uint8_t resolution_bits);
uint32_t sigmaDeltaSetup(uint8_t pin, uint8_t channel, uint32_t freq);

* ``pin`` select GPIO pin.
* ``channel`` select SigmaDelta channel.
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