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Update GPIO docs (digital.rst) (#656)

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Stefan Staub 2022-06-25 19:00:29 +02:00 committed by GitHub
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8
docs/digital.rst
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@ -6,6 +6,14 @@ Board-Specific Pins
The Raspberry Pi Pico RP2040 chip supports up to 30 digital I/O pins, The Raspberry Pi Pico RP2040 chip supports up to 30 digital I/O pins,
however not all boards provide access to all pins. however not all boards provide access to all pins.
Input Modes
-----------
The Raspberry Pi Pico has 3 Input modes settings for use with `pinMode`: `INPUT`, `INPUT_PULLUP` and `INPUT_PULLDOWN`
Output Modes (Pad Strength)
---------------------------
The Raspberry Pi Pico has the ability to set the current that a pin (actually the pad associated with it) is capable of supplying. The current can be set to values of 2mA, 4mA, 8mA and 12mA. By default, on a reset, the setting is 4mA. A `pinMode(x, OUTPUT)`, where `x` is the pin number, is also the default setting. 4 settings have been added for use with `pinMode`: `OUTPUT_2MA`, `OUTPUT_4MA`, which has the same behavior as `OUTPUT`, `OUTPUT_8MA` and `OUTPUT_12MA`.
Tone/noTone Tone/noTone
----------- -----------
Simple square wave tone generation is possible for up to 8 channels using Simple square wave tone generation is possible for up to 8 channels using

5
docs/pins.rst
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@ -60,8 +60,3 @@ it use a non-default pinout with a simple call
SPI.setCS(5); SPI.setCS(5);
SD.begin(5); SD.begin(5);
} }
Pad Strength
============
The Raspberry Pi Pico has the ability to set the current that a pin (actually the pad associated with it) is capable of supplying. The current can be set to values of 2mA, 4mA, 8mA and 12mA. By default, on a reset, the setting is 4mA. A `pinMode(x, OUTPUT)`, where `x` is the pin number, is also the default setting. 4 settings have been added for use with `pinMode`: `OUTPUT_2MA`, `OUTPUT_4MA`, which has the same behavior as `OUTPUT`, `OUTPUT_8MA` and `OUTPUT_12MA`.