# LOLIN C3 MINI MicroPython Helper Library from micropython import const from machine import Pin # Pin Assignments # SPI SPI_MOSI = const(4) SPI_MISO = const(3) SPI_CLK = const(2) # I2C I2C_SDA = const(8) I2C_SCL = const(10) # LED LED = const(7) # BUTTON BUTTON = const(0) # Built-in peripherals led = Pin(LED, Pin.OUT, value=0) button = Pin(BUTTON, Pin.IN, Pin.PULL_UP)