Get the battery status of a Wii remote.

Integration and Hardware

mralexis4..

Get the battery status of a Wii remote.

in Integration and Hardware • 2 years ago

Hello,

this is my first post and I want to apologize for my English. I'm a 19 years old french student.

I want to apologize for my bad level in processing too :P.

I discovered it thanks to Arduino, and I use it to create interfaces between me (my laptop) and my robot (my arduino).

I am planning to use a wii mote for my robot. I installed all the stuff and:

IT WORKS!

it works great!

let's talk about my problems.

I can use the "example" project. I understand the result but not how it works (i don't need to re-invent wheels-frenche expression-)

But for my project It would be nice if I could use more features of the wiimote:

-get the battery status

-control the leds

-get the nunchuck acc & joy.

for the moment I am usign this sketch:

http://letsmakerobots.com/node/23723 ( i'm not the autor)

I found this:

http://en.sourceforge.jp/projects/wrj4p5/wiki/Wrj4P5(en) wich seems to be very suitable for my problem.

For the moment I am using this:

Copy code

battery=100*wii.rimokon.getBatteryLevel();
println(battery);

with

Copy code

Wrj4P5 wii;

at the beginning of my sketch.

it sends me 0,29% instead of 44%! (checked with another non-processing method)

So my questions are:

-what have I done wrong with the battery status?

-how can I drive the LEDS?

-Has anyone an exemple of a sketch using wii remote + nunchuck?

Thank you for reading, and sorry I have wrote a lot!

Replies(3)

mralexis4..

Re: Get the battery status of a Wii remote.

2 years ago

EDIT: more and more success! still having trouble with led driving, and the battery status doesn't report any error, but the result is not good (2.7% of battery??? I have 52% !)

Answer to myself: I have successfully get the button informations from the nunchuck controller!

here is my code:

Copy code

import lll.wrj4P5.*;
Wrj4P5 wii;
void setup() {
size(300,300,P3D);
wii=new Wrj4P5(this);
wii.connect();
}
void draw() {
background(0);
stroke(255);
translate(300/2,300/2,0);
lights();
rotateX((int) (wii.rimokon.senced.x*30+300));
rotateY((int) (wii.rimokon.senced.y*30+300));
rotateZ((int) (wii.rimokon.senced.z*30+300));
box(100,100,100);
}
void buttonPressed(RimokonEvent evt, int rid) {
if (evt.wasPressed(RimokonEvent.TWO)) println("2");
if (evt.wasPressed(RimokonEvent.ONE)) println("1");
if (evt.wasPressed(RimokonEvent.B)) println("B");
if (evt.wasPressed(RimokonEvent.A)) println("A");
if (evt.wasPressed(RimokonEvent.MINUS)) println("Minus");
if (evt.wasPressed(RimokonEvent.HOME)) println("Home");
if (evt.wasPressed(RimokonEvent.LEFT)) println("Left");
if (evt.wasPressed(RimokonEvent.RIGHT)) println("Right");
if (evt.wasPressed(RimokonEvent.DOWN)) println("Down");
if (evt.wasPressed(RimokonEvent.UP)) println("Up");
if (evt.wasPressed(RimokonEvent.PLUS)) println("Plus");
}
void nunchakuPressed(NunchakuEvent evt, int rid)
{
if (evt.wasPressed(NunchakuEvent.Z))
{
println("Z");
println(wii.nunchaku.stick.x); //print the position of the nunchuck joystick (on X axis)
println(wii.nunchaku.sensed.x); //print the acceleration of the nunchuck (on X axis)
println(wii.rimokon.getBatteryLevel()); //print the battery level (still bug, or there is a conversion to do)
etatled =! etatled ; //toggle the state of the led
wii.rimokon.setLED(1, etatled) ; //DO NOT WORK :( null pointer exception....
}
}

It was the simple part, because it was very similar to the remote controller exemple code.

But I have no example for the battery status or the LEDs, if anyone could help me...

helgosam

Re: Get the battery status of a Wii remote.

2 years ago

Did you get this fixed in the end?

I don't know about the Battery life problems you have, but I do have the LEDs working great.

So reply here and let me know if you still need help (6 weeks later!)

mralexis4..

Re: Get the battery status of a Wii remote.

2 years ago

Hello,

Still having issues with battery and LEDS (I can switch on leds, but its weird, I can't choose wich led to turn on/off)

I have read in Wrj4P5 lib that this is normal that it doesn't work (LED, piezo speaker, battery status and vibration). If I have understood well, it's because wiimote communicate at 100Hz and a Processing sketch can "only" make 60 loop per second.

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