|
|
|
 What, there is life outside of CD? - JB987 [more] |
 |
|
|||||||
|
||||||||
Forgetting to turn on an FTC robot’s battery, or accidentally letting the battery voltage get too low is a huge fear of mine. So I created a LabVIEW VI that can be used to read the battery voltage.
Forgetting to turn on an FTC robot’s battery, or accidentally letting the battery voltage get too low is a huge fear of mine. So I created a VI that can be used to read the battery voltage.
ReadBatteryVoltage.vi talks to any HiTechnic Motor Controller and reads the battery level in milli-Volts (mV). There are 1000 mV in one Volt.
A side benefit of this control is that if the power to the HiTechnic controller is NOT ON, then ReadBatteryVoltage.vi returns an error status. So this one control can be used to ensure that the power is turned on, and there is plenty of voltage.
Attached Files
-
Doccumentation for the ReadBatteryVoltage.vi
Reading the FTC Battery Voltage.pdf
download file
uploaded: 07-01-2009 20:55
filetype: pdf
filesize: 65.97kb
downloads: 577
-
LabVIEW sample, and ReadBatteryVoltage.VI
ReadBatteryVoltage.zip
download file
uploaded: 07-01-2009 20:56
filetype: zip
filesize: 26.67kb
downloads: 276
Discussion
view entire thread
14-01-2009 17:36
ringo115
Re: paper: Reading the FTC Battery Voltage
Philbot, ive been racking my brain for the past few hours trying to figure out about the NXT items you have in the battery display, where can i find those items, all i have is question marks, please write back ASAP
14-01-2009 19:49
PhilBot
Re: paper: Reading the FTC Battery Voltage
|
Originally Posted by ringo115
Philbot, ive been racking my brain for the past few hours trying to figure out about the NXT items you have in the battery display, where can i find those items, all i have is question marks, please write back ASAP
|
These are in addition to what you got when you did the initial FTC LabVIEW install.
Most of these VI's are used to access the Motor Control Encoders (or encoder related functions). They are part of the "FTC Toolkit".
The update is referenced on the FIRST FTC page:
http://www.usfirst.org/community/ftc...t.aspx?id=6650
Go to this page in the NI site to see the available updates:
http://zone.ni.com/devzone/cda/tut/p/id/7956
In particular is this update page:
http://joule.ni.com/nidu/cds/view/p/lang/en/id/1129
You want the update file called:
lv_ftc_motors_nov1708.zip
After downloading, you must follow the direction at the bottom of the page to install them. It requires you to unzip the files and copy them to a folder contained in the LabVIEW program folder.
c:program filesLabVIEW 8.5vi.libaddonsFTC Toolkit
This should now give you a new sub-pallette called "FTC Motor Encoder Functions"
That's where all the controls are that I use as part of my control.
Phil.
15-01-2009 15:17
ringo115
Re: paper: Reading the FTC Battery Voltage
ok, well im actually in FRC, do you know if theres any compatibility there
16-01-2009 08:46
PhilBot
Re: paper: Reading the FTC Battery Voltage
|
Originally Posted by ringo115
ok, well im actually in FRC, do you know if theres any compatibility there
|
To read voltage in FRC you just need to read the analog voltage on chan 8 slot1 and convert to volts (scale by 1.68)
See how they do it to send to driver station.
view entire thread
Tags
loading ...