Hello, i have a Beaglebone AI, i need read analog input with python code,
example:
import Adafruit_BBIO.ADC as ADC
from time import sleep
ADC.setup()
analogPin = "P9_33"
while(1):
potVal = ADC.read(analogPin)
potVolt = potVal*1.8
print ("The Potentiometer Voltage is: {}".format(potVolt))
sleep(0.5)
but, this code generated error:
debian@beaglebone:~$ sudo python3 test_bbai_ai.py
Traceback (most recent call last):
File "test_bbai_ai.py", line 4, in <module>
ADC.setup()
RuntimeError: Unable to setup ADC system. Possible causes are:
- A cape with a conflicting pin mapping is loaded
- A device tree object is loaded that uses the same name for a fragment:
helper
Please, help me, thank you.
PD. BeagleBoard.org Debian Buster IoT TIDL Image 2020-04-06
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