Using ad8232 ecg with jetson nano

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
1

i’m trying to use ecg ad8232 with jetson nano using upm/mraa library GitHub - eclipse/upm: UPM is a high level repository that provides software drivers for a wide variety of commonly used sensors and actuators. These software drivers interact with the underlying hardware platform through calls to MRAA APIs. . I had installed upm and mraa but when I run the python code I got this error.
Traceback (most recent call last):
File “ad8232.py”, line 57, in
main()
File “ad8232.py”, line 31, in main
myAD8232 = upmAD8232.AD8232(14, 194, 50)
File “/usr/lib/python2.7/dist-packages/upm/pyupm_ad8232.py”, line 87, in init
this = _pyupm_ad8232.new_AD8232(loPlus, loMinus, output, aref)
ValueError: UPM Invalid Argument: Invalid GPIO pin specified
any solution?
I know that jetson nano doesn’t have analog pins so I add ads1115 and connect it with ad8232 and jetson.

3

hello masmoudiomaima.mo,

since the analog input is unavailable for Jetson Nano. you may have to add external ADC, and read this value on the Jetson Nano via the GPIO.
you might also refer to discussion thread, Topic 57925 for reading GPIO interrupts from user space,
thanks

4

Thanks sir for your reply .I already use ads1115ADC.

5

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.
Thanks

hello masmoudiomaima.mo,

were you able to read GPIO interrupts from user space?
thanks