35 lines
820 B
Python
35 lines
820 B
Python
import board
|
|
import busio
|
|
from microcontroller import Pin
|
|
|
|
|
|
def is_hardware_uart(tx, rx):
|
|
try:
|
|
p = busio.UART(tx, rx)
|
|
p.deinit()
|
|
return True
|
|
except ValueError:
|
|
return False
|
|
|
|
|
|
def get_unique_pins():
|
|
exclude = ['NEOPIXEL', 'APA102_MOSI', 'APA102_SCK']
|
|
pins = [pin for pin in [
|
|
getattr(board, p) for p in dir(board) if p not in exclude]
|
|
if isinstance(pin, Pin)]
|
|
unique = []
|
|
for p in pins:
|
|
if p not in unique:
|
|
unique.append(p)
|
|
return unique
|
|
|
|
|
|
for tx_pin in get_unique_pins():
|
|
for rx_pin in get_unique_pins():
|
|
if rx_pin is tx_pin:
|
|
continue
|
|
else:
|
|
if is_hardware_uart(tx_pin, rx_pin):
|
|
print("RX pin:", rx_pin, "\t TX pin:", tx_pin)
|
|
else:
|
|
pass
|