import time import Adafruit_GPIO as GPIO import Adafruit_GPIO.SPI as SPI # Set up the SPI pins (clock, MOSI, MISO, CS) SCLK = 25 MOSI = 24 MISO = 23 CS = 18 spi = SPI.BitBang(GPIO.get_platform_gpio(), SCLK, MOSI, MISO, CS) # Send some data (in this case, the bytes 0x01, 0x02, and 0x03) data = [0x01, 0x02, 0x03] spi.writebytes(data) # Read some data (in this case, 8 bits) result = spi.read(8) # Handle SPI transactions manually spi.begin_transaction() spi.write([0x01, 0x02]) result = spi.read(4) spi.end_transaction() # Change the clock frequency and bit order spi.set_clock_hz(100000) # 100 kHz clock frequency spi.set_bit_order(SPI.MSBFIRST) # most significant bit firstThe Adafruit_GPIO.SPI BitBang module is part of the Adafruit_GPIO library.