SCD41: update example to use default pins

micropython/examples/breakout_scd41/scd41_demo.py

@@ -1,12 +1,9 @@
+import breakout_scd41
+from pimoroni_i2c import PimoroniI2C
+from pimoroni import BREAKOUT_GARDEN_I2C_PINS  # or PICO_EXPLORER_I2C_PINS or HEADER_I2C_PINS
 import time
 
-import pimoroni_i2c
-import breakout_scd41
-
-PINS_BREAKOUT_GARDEN = {"sda": 4, "scl": 5}
-PINS_PICO_EXPLORER = {"sda": 20, "scl": 21}
-
-i2c = pimoroni_i2c.PimoroniI2C(**PINS_PICO_EXPLORER)
+i2c = PimoroniI2C(**BREAKOUT_GARDEN_I2C_PINS)  # or PICO_EXPLORER_I2C_PINS or HEADER_I2C_PINS
 
 breakout_scd41.init(i2c)
 breakout_scd41.start()