1  import busio
 2  import digitalio
 3  import board
 4  import adafruit_mcp3xxx.mcp3008 as MCP
 5  from adafruit_mcp3xxx.analog_in import AnalogIn
 6  
 7  # create the spi bus
 8  spi = busio.SPI(clock=board.SCK, MISO=board.MISO, MOSI=board.MOSI)
 9  
10  # create the cs (chip select)
11  cs = digitalio.DigitalInOut(board.D5)
12  
13  # create the mcp object
14  mcp = MCP.MCP3008(spi, cs)
15  
16  # create a differential ADC channel between Pin 0 and Pin 1
17  chan = AnalogIn(mcp, MCP.P0, MCP.P1)
18  
19  print("Differential ADC Value: ", chan.value)
20  print("Differential ADC Voltage: " + str(chan.voltage) + "V")