40 lines
967 B
Python
40 lines
967 B
Python
import board
|
|
import busio
|
|
|
|
|
|
def is_hardware_I2C(scl, sda):
|
|
try:
|
|
p = busio.I2C(scl, sda)
|
|
p.deinit()
|
|
return True
|
|
except ValueError:
|
|
return False
|
|
|
|
|
|
def get_unique_pins():
|
|
pin_names = dir(board)
|
|
if "NEOPIXEL" in pin_names:
|
|
pin_names.remove("NEOPIXEL")
|
|
if "APA102_MOSI" in pin_names:
|
|
pin_names.remove("APA102_MOSI")
|
|
if "APA102_SCK" in pin_names:
|
|
pin_names.remove("APA102_SCK")
|
|
if "D13" in pin_names:
|
|
pin_names.remove("D13")
|
|
pins = [getattr(board, p) for p in pin_names]
|
|
unique = []
|
|
for p in pins:
|
|
if p not in unique:
|
|
unique.append(p)
|
|
return unique
|
|
|
|
|
|
for scl_pin in get_unique_pins():
|
|
for sda_pin in get_unique_pins():
|
|
if scl_pin is sda_pin:
|
|
continue
|
|
else:
|
|
if is_hardware_I2C(scl_pin, sda_pin):
|
|
print("SCL pin:", scl_pin, "\t SDA pin:", sda_pin)
|
|
else:
|
|
pass
|