Hardware API

The classes to control the peripherals of the board will reside in a new module called hardware, therefore, by doing:

import hardware
dir(hardware)

one can easily see what's supported on the board.

The Pin class

Create & init a pin

• id, mode are mandatory and positional (also can be named).
• pull is optional and positional (also can be named).
• rest of args are kwonly.
• only "value" is required for a port to implement (initial value if given).
• rest are optional, and a port can define them and also define others.

pin = Pin(id, mode, pull=Pin.PULL_NONE, *, value, drive, slew, ...)

Methods

• pin.init(...) re init.
• pin.high() set high.
• pin.low() set low.
• pin.value() get value.
• pin.value(x) set value.
• pin() fast method to get the value of the pin.
• pin(value) fast method to set the value of the pin.
• pin.toggle()

Methods to get/set parameters:

• pin.id() get only.
• pin.mode()
• pin.pull()
• pin.drive()
• pin.slew()

Constants

• for mode: Pin.IN, Pin.OUT, Pin.OPEN_DRAIN
• for pull: Pin.PULL_UP, Pin.PULL_DOWN, Pin.PULL_NONE _optional pull:_Pin.PULL_UP_STRONG, Pin.PULL_DOWN_WEAK`, ...
• for drive: Pin.LOW_POWER, Pin.MED_POWER, Pin.HIGH_POWER
• for slew: Pin.FAST_RISE, Pin.SLOW_RISE
• for interrupt (callback) mode: pin.INT_RISING, pin.INT_FALLING, pin.INT_RISING_FALLING, pin.INT_HIGH_LEVEL, pin.INT_LOW_LEVEL

Pins list

• Mandatory: Pin.board, optional: Pin.cpu