reference
A module holds four kinds of thing: functions you call directly, module level objects you read or write, classes you instantiate, and constants. The classes then carry their own methods.
The map below is the way round it. MicroPython specific modules are on the left, the trimmed standard library on the right. Pick a module to open it, then open the parts you need — everything starts closed, so the page stays readable.
Which members a board actually has depends on the port
and the hardware behind it. The mainline ports are
alif, cc3200,
esp32, esp8266,
mimxrt, nrf,
psoc-edge, renesas-ra,
rp2, samd and
stm32, plus Unix, Windows and Zephyr.
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Taken from the official reference at docs.micropython.org.