@Will-Dickson using the following code:
from serial import Serial
from potentiostat import Potentiostat
pstat = Potentiostat('COM8')
dev = Potentiostat('COM8')
dev.set_curr_range('100uA')
dev.set_sample_period(10)
name = 'cyclic'
param = {
'quietValue' : 0.0,
'quietTime' : 1000,
'amplitude' : 2.0,
'offset' : 0.0,
'period' : 1000,
'numCycles' : 5,
'shift' : 0.0
}
dev.set_param(name,param)
t,volt,curr = dev.run_test(name,display ='pbar')
i get these errors:
Traceback (most recent call last):
File "iorodeo.py", line 9, in <module>
dev = Potentiostat(port)
File "C:\Users\JFK's Thinkpad\AppData\Local\Programs\Python\Python37\Lib\site-packages\potentiostat\potentiostat.py", line 163, in init
self.hw_variant = self.get_hardware_variant()
File "C:\Users\JFK's Thinkpad\AppData\Local\Programs\Python\Python37\Lib\site-packages\potentiostat\potentiostat.py", line 173, in get_hardware_variant
msg_dict = self.send_cmd(cmd_dict)
File "C:\Users\JFK's Thinkpad\AppData\Local\Programs\Python\Python37\Lib\site-packages\potentiostat\potentiostat.py", line 612, in send_cmd
msg_dict = json.loads(msg_json.decode())
File "C:\Users\JFK's Thinkpad\AppData\Local\Programs\Python\Python37\lib\json_init_.py", line 348, in loads
return _default_decoder.decode(s)
File "C:\Users\JFK's Thinkpad\AppData\Local\Programs\Python\Python37\lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "C:\Users\JFK's Thinkpad\AppData\Local\Programs\Python\Python37\lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
File "C:\Users\JFK's Thinkpad\AppData\Local\Programs\Python\Python37\Lib\site-packages\potentiostat\potentiostat.py", line 649, in atexit_cleanup
if self.isOpen() and self.test_running:
AttributeError: 'Potentiostat' object has no attribute 'test_running'
Additionally I get other error messages such as:
File "test.py", line 2, in <module>
pstat = Potentiostat('COM8')
File "C:\Users\JFK's Thinkpad\AppData\Local\Programs\Python\Python37\Lib\site-packages\potentiostat\potentiostat.py", line 163, in init
self.hw_variant = self.get_hardware_variant()
File "C:\Users\JFK's Thinkpad\AppData\Local\Programs\Python\Python37\Lib\site-packages\potentiostat\potentiostat.py", line 173, in get_hardware_variant
msg_dict = self.send_cmd(cmd_dict)
File "C:\Users\JFK's Thinkpad\AppData\Local\Programs\Python\Python37\Lib\site-packages\potentiostat\potentiostat.py", line 612, in send_cmd
msg_dict = json.loads(msg_json.decode())
Thanks! I get a different error now: 'Potentiostal' object has no attribute 'test running'
I am running a .py file where I create a device object using the potentiostat module and assign it to the appropriate port. The error is returned through the iPython console. It has happened as well from the CLI
Hi Will,
I am using Spyder, installed through anaconda on Windows 10. I am currently running python version 3.7.3. I suppose I am using the Python API. The code I am running is the one made available through the iorodeo python library