Tal O
Published © GPL3+

Analog Input on Raspberry Pi with MCP3008

How to get analog input on Raspberry Pi using CircuitPython.

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Analog Input on Raspberry Pi with MCP3008

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Schematics

wiring

Code

Example

Python
import busio
import digitalio
import board
import adafruit_mcp3xxx.mcp3008 as MCP
from adafruit_mcp3xxx.analog_in import AnalogIn
import time

# create the spi bus
spi = busio.SPI(clock=board.SCK, MISO=board.MISO, MOSI=board.MOSI)
 
# create the cs (chip select)
cs = digitalio.DigitalInOut(board.D5)
 
# create the mcp object
mcp = MCP.MCP3008(spi, cs)
 
# create an analog input channel on pin 0
chan = AnalogIn(mcp, MCP.P0)

while True:
  print('Raw ADC Value: ', chan.value)
  print('ADC Voltage: ' + str(chan.voltage) + 'V')
  time.sleep(1)

Credits

Tal O

Tal O

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