Subject:
|
Re: Voltage>10V????
|
Newsgroups:
|
lugnet.robotics.rcx.java
|
Date:
|
Wed, 10 Mar 2004 08:17:13 GMT
|
Viewed:
|
6432 times
|
| |
|
|
Hi,
I think it is better to continue the discussion here
so everybody can profit.
sole musitu martinez wrote:
> --- Juergen Stuber <stuber@loria.fr> escribió:
> > "sole" <solemusitu@yahoo.es> writes:
> > >
> > > I'm using the method 'getVoltageMilliVolt()' in my
> > > robot. But i don't understand the value that i get, more
> > > than 10000 mV, why? if 9600mV is the total voltage that
> > > batteries provide.
> >
> > maybe your RCX is broken?
> > What value do you get, >28000?
>
> i get the voltage value before (v0) and after (v1) the
> executing of a program. Then i subtract this values
> v=(v0-v1) and most of the times the LCD shows the
> number 9999 (v). So neither v is over 10000 or is a
> negative value.
The difference is probably negative, often the voltage
increases after batteries get a little exercise, maybe
because they get warmer. Can you try to display it signed
by using setNumber & refresh?
Here is a small example program I just wrote:
import josx.platform.rcx.*;
public class BatteryVoltage
{
public static void main (String[] arg)
throws java.lang.InterruptedException
{
while (!Button.RUN.isPressed()) {
int mv = Battery.getVoltageMilliVolt();
LCD.setNumber (LCDConstants.LCD_SIGNED,
(mv+5)/10,
LCDConstants.LCD_DECIMAL_2);
LCD.refresh();
Thread.sleep(200);
}
while (Button.RUN.isPressed()) {
}
}
}
Jürgen
--
Jürgen Stuber <stuber@loria.fr>
http://www.loria.fr/~stuber/
|
|
Message is in Reply To:
3 Messages in This Thread:
  
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
