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by jdecoux
Mon Jun 27, 2022 10:03 am
Forum: General
Topic: Scan for Phidget sensors attached?
Replies: 5
Views: 24902

Re: Scan for Phidget sensors attached?

Sounds like you're looking for the Phidget Manager. It will detect any Phidgets that are connected and disconnected from your PC (and network, if configured). https://www.phidgets.com/docs/Phidget_Manager You can check the Hello World examples from the Code Samples page for an example of how to use ...
by jdecoux
Wed Feb 16, 2022 2:25 pm
Forum: All Other Phidgets
Topic: Voltage output update rate
Replies: 5
Views: 17910

Re: Voltage output update rate

OUT1000 has been sped up to have a turnaround time of 2-3ms.
by jdecoux
Wed Feb 16, 2022 2:10 pm
Forum: All Other Phidgets
Topic: VCP1002_0 Voltage Input Phidget - Update Rate
Replies: 1
Views: 11856

Re: VCP1002_0 Voltage Input Phidget - Update Rate

We've looked into it, and it looks like there is indeed headroom to get VCP1002 to go faster, with an expected new minimum interval between 10-20ms. Expect an update in the coming weeks.
by jdecoux
Tue Feb 15, 2022 11:20 am
Forum: General
Topic: 0-500kg Load Cell precision
Replies: 2
Views: 10625

Re: 0-500kg Load Cell precision

To measure 2kg on a 500kg load cell, you are using 0.4% of its full scale range. This would be equivalent to trying to accurately measure weights up to 20g on a 5kg load cell. Possible? Technically, but you're approaching the point where many other small effects could skew the results significantly ...
by jdecoux
Mon Feb 14, 2022 5:23 pm
Forum: All Other Phidgets
Topic: Phidget Spatial Tilt compensation
Replies: 3
Views: 13621

Re: Phidget Spatial Tilt compensation

MOT0109 and MOT1102 are your real options if you want orientation calculated for you.

MOT0109 features temperature compensation and more accurate sensors for applications that need them, but it sounds like the MOT1102 should be good enough for your purposes.
by jdecoux
Wed Feb 09, 2022 5:52 pm
Forum: All Other Phidgets
Topic: Phidget Spatial Tilt compensation
Replies: 3
Views: 13621

Re: Phidget Spatial Tilt compensation

Which Spatial 3/3/3 are you looking at? The ones with AHRS support will give you a tilt-compensated Heading from the algorithmData outlet, alongside Pitch and Roll. If all you need is an attitude-adjusted compass, I'd recommend going with an MOT1102 (which needs a VINT Hub, but still comes out cheap...
by jdecoux
Mon Jan 31, 2022 3:55 pm
Forum: General
Topic: Can't perform calibration on Phidgets 1044_1 IMU (version 502)
Replies: 1
Views: 8444

Re: Can't perform calibration on Phidgets 1044_1 IMU (version 502)

That actually sounds a lot like a crash related to the compass calibration program itself that we fixed a while ago, where the program would crash if the calibration took too long. Try updating you control panel (and by extension the compass calibrator) to the latest version, and let us know if that...
by jdecoux
Wed Jan 26, 2022 2:47 pm
Forum: General
Topic: Position Controller PID odd behaviors
Replies: 3
Views: 24636

Re: Position Controller PID odd behaviors

Thank you for your suggestions for potential improvements, we will take these into consideration. I was unable to replicate your results in-house. The motor I used moves with the same degree of accuracy regardless of direction. Is there some mechanical loading on your system that's stronger in one d...
by jdecoux
Thu Jan 20, 2022 5:27 pm
Forum: General
Topic: Position Controller PID odd behaviors
Replies: 3
Views: 24636

Re: Position Controller PID odd behaviors

Rescale factor indeed does not affect the PID parameters. If you repeat those motions 5-10 times, do you see the same results each time? If I'm reading your example image correctly, it appears you are trying to move the motor a short distance (25 counts) very, very quickly. In this case, there may n...
by jdecoux
Thu Jan 20, 2022 12:56 pm
Forum: General
Topic: Position Controller: determine when move is complete
Replies: 2
Views: 8699

Re: Position Controller: determine when move is complete

While there is no "Motion Complete" event, you could potentially use the PositionChange event to check whether your motor is near the target position and set a flag from there, moving the bulk of the comparison out of your main loop.