I am trying to us a Raspberry Pi4 to to send SCPI commands to a Chroma 61602 and a ITECH IT8512G+ but I can never get PyVisa ResourceManager to return any thing. My return is ()
I am communicating to both instruments with USB connections. When I do a isusb command on my terminal both devices do show up on each port.
Below is my code and the Terminal response I receive. I have tried for several days now and I can never get a Resource Manger response from the two instruments connected to my Pi4 USB ports. My hope is someone has seen this before and can offer me some assistance.
Python Code:
import pyvisa
from time import sleep
#" Chroma 61602 and ITECH IT8512G+ Comm Check"
rm = pyvisa.ResourceManager()
print(rm.list_resources())
Terminal Output when ran:
(venv-psu) eng@psupi:~/PSU-Test $ /home/eng/PSU-Test/venv-psu/bin/python /home/eng/PSU-Test/Comm_Test.py
()