repeated errors reported after set_position failure

[rbw42]

Hi,
If I try to drive the uarm too far so that it returns an error, subsequent calls to set_position() also return errors/failure even if they are to valid positions. Is this expected? Do I have to do something to clear the error?
Thanks,
Randall.

e..g
Python 2.7.9 (default, Sep 17 2016, 20:26:04)
[GCC 4.9.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.

import pyuarm
myuarm=pyuarm.uarm.UArm()
pyuarm - INFO - pyuarm version: 2.2.5.3
pyuarm - INFO - Connecting from port - /dev/ttyUSB0...
pyuarm - INFO - Connected...
pyuarm - INFO - Firmware Version: 2.2.1
myuarm.set_position(50,50,100)
True
myuarm.set_position(-150,150,100)
True
myuarm.set_position(-150,150,100,speed=50)
False
myuarm.set_position(-150,250,100,speed=50)
True
myuarm.set_position(-150,250,250,speed=50)
pyuarm - ERROR - Communication| ERROR: send #15 G0 X-150.0 Y250.0 Z250.0 F50.0
, received error from robot:
False
myuarm.set_position(-150,250,100,speed=50)
pyuarm - ERROR - Communication| ERROR: send #17 G0 X-150.0 Y250.0 Z100.0 F50.0
, received error from robot: $16 OK V2.2.1

False

myuarm.set_position(-150,150,100,speed=50)
pyuarm - ERROR - Communication| ERROR: send #19 G0 X-150.0 Y150.0 Z100.0 F50.0
, received error from robot: $18 OK V2.2.1

False

[altjz]

Hi @rbw42 , you could checkout this new commit 0b6f95

[rbw42]

Hi altjz,
Well, that seems to have fixed the original problem, but now I have a new error:

Python 2.7.9 (default, Sep 17 2016, 20:26:04) 
[GCC 4.9.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyuarm
>>> myuarm=pyuarm.uarm.UArm()
pyuarm - INFO - pyuarm version: 2.4.0.10
>>> myuarm.connect()
pyuarm - INFO - Connecting from port - /dev/ttyUSB0...
>>> myuarm.set_position(-147.2,85.0,100.0,speed=50,wait=True)
pyuarm - ERROR - function - TypeError - 'NoneType' object is not iterable

The help for the UArm class methods like set_position() are now opaque, since they don't describe what the possible args are. Has the interface changed?

Cheers,
Randall.

[altjz]

Hi @rbw42 , Could you open the debug? And retry?

import pyuarm
arm = pyuarm.UArm(debug=True)

Provide your firmware version would be nice!

print(arm.firmware_version)

[rbw42]

Here you go

>>> import pyuarm
>>> arm = pyuarm.UArm(debug=True)
pyuarm - INFO - pyuarm version: 2.4.0.10
>>> arm.connect()
pyuarm - INFO - Connecting from port - /dev/ttyUSB0...
pyuarm - DEBUG - Received MSG: @1
>>> arm.set_position(-147.2,85.0,100.0,speed=50,wait=True)
pyuarm - DEBUG - Send #2 G0 X-147.2 Y85.0 Z100.0 F50.0
pyuarm - DEBUG - MSG Received: $2 OK
pyuarm - DEBUG - Send #3 M200
pyuarm - DEBUG - MSG Received: $3 OK V1
pyuarm - DEBUG - Send #4 M200
pyuarm - DEBUG - MSG Received: $4 OK V1
pyuarm - DEBUG - Send #5 M200
pyuarm - DEBUG - MSG Received: $5 OK V1
pyuarm - DEBUG - Send #6 M200
pyuarm - ERROR - function - TypeError - 'NoneType' object is not iterable
True
>>> pyuarm - DEBUG - MSG Received: $6 OK V1

BTW, I'm not a git guru. To get the commit version you mentioned, I did a git clone of the repo and then a git checkout 0b6f95. Let me know if I have to do something else. The original version I had installed was from installing via pip. That is uninstalled now.

[altjz]

Seems it caused by pyuarm didn't get a reply from check moving query.
Would you provide me the uArm firmware version and hardware version?
you could get them via

print(arm.firmware_version)
print(arm.hardware_version)

[rbw42]

Python 2.7.9 (default, Sep 17 2016, 20:26:04) 
[GCC 4.9.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyuarm
>>> arm=pyuarm.uarm.UArm()
pyuarm - INFO - pyuarm version: 2.4.0.10
>>> arm.connect()
pyuarm - INFO - Connecting from port - /dev/ttyUSB0...
>>> arm.firmware_version
'2.2.1'
>>> arm.hardware_version
'2.1'

It was a 2016 Christmas present, so is presumably the most recent model.