Display the amount of free RAM
From: https://learn.adafruit.com/welcome-to-circuitpython/frequently-asked-questions
import gc print( gc.mem_free() )
Show microcontroller.pin to board mappings
From https://gist.github.com/anecdata/1c345cb2d137776d76b97a5d5678dc97
import microcontroller
import board
for pin in dir(microcontroller.pin):
if isinstance(getattr(microcontroller.pin, pin), microcontroller.Pin):
print("".join(("microcontroller.pin.", pin, "\t")), end=" ")
for alias in dir(board):
if getattr(board, alias) is getattr(microcontroller.pin, pin):
print("".join(("", "board.", alias)), end=" ")
print()
import os print(os.uname().machine) 'Adafruit ItsyBitsy M4 Express with samd51g19'
To get the chip family
import os print(os.uname().sysname) 'ESP32S2'
import os
board_type = os.uname().machine
if 'QT Py M0' in board_type:
tft_clk = board.SCK
tft_mosi = board.MOSI
spi = busio.SPI(clock=tft_clk, MOSI=tft_mosi)
elif 'ItsyBitsy M4' in board_type:
tft_clk = board.SCK
tft_mosi = board.MOSI
spi = busio.SPI(clock=tft_clk, MOSI=tft_mosi)
elif 'Pico' in board_type:
tft_clk = board.GP10 # must be a SPI CLK
tft_mosi= board.GP11 # must be a SPI TX
spi = busio.SPI(clock=tft_clk, MOSI=tft_mosi)
else:
print("supported board", board_type)
