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Devoxx4Kids Lego
Stephen Chin
Java Community Manager
JavaOne Content Co-Chair
@steveonjava
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LeJOS EV3
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EV3
> TI Sitara AM1808
ARM9, 300Mhz
> 64MB RAM / 16MB Flash
> -
> 4
> 4
> Bluetooth / USB
> MicroSD
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EV3
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EV3
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LeJOS
> Micro SD Card (> 2GB)
> WIFI
NetGear WNA1100
EDIMAX EW-7811Un
> Linux (or a Linux VM)
> :
SD
http://sourceforge.net/p/lejos/wiki/Home/
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Lego Duke Segway
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Windows USB 1: (driver), Device Manager
13 Credit to the ev3dev team for the great screen captures and writeup: http://www.ev3dev.org/docs/tutorials/connecting-to-the-internet-via-usb/?tabs-0=windows-7-8
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Windows USB 2: Device Manager, EV3s RNDIS. Network Adapters > USB Ethernet/RNDIS Gadget.
14 Credit to the ev3dev team for the great screen captures and writeup: http://www.ev3dev.org/docs/tutorials/connecting-to-the-internet-via-usb/?tabs-0=windows-7-8
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Windows USB 3: Driver. Update driver .
15 Credit to the ev3dev team for the great screen captures and writeup: http://www.ev3dev.org/docs/tutorials/connecting-to-the-internet-via-usb/?tabs-0=windows-7-8
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Windows USB 4: Browse my computer for driver software.
16 Credit to the ev3dev team for the great screen captures and writeup: http://www.ev3dev.org/docs/tutorials/connecting-to-the-internet-via-usb/?tabs-0=windows-7-8
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Windows USB 5: Let me pick from a list of device drivers on my computer.
17 Credit to the ev3dev team for the great screen captures and writeup: http://www.ev3dev.org/docs/tutorials/connecting-to-the-internet-via-usb/?tabs-0=windows-7-8
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Windows USB 6: Show compatible hardware. Manufacturer, Microsoft Corporation ( Windows 8, Microsoft). Network Adapter, Remote NDIS Compatible Device. Next.
18 Credit to the ev3dev team for the great screen captures and writeup: http://www.ev3dev.org/docs/tutorials/connecting-to-the-internet-via-usb/?tabs-0=windows-7-8
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Windows USB 7: Windows , , Yes.
19 Credit to the ev3dev team for the great screen captures and writeup: http://www.ev3dev.org/docs/tutorials/connecting-to-the-internet-via-usb/?tabs-0=windows-7-8
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Windows USB 8: , Close.
20 Credit to the ev3dev team for the great screen captures and writeup: http://www.ev3dev.org/docs/tutorials/connecting-to-the-internet-via-usb/?tabs-0=windows-7-8
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Eclipse
> Eclipse
> "Preferences
> leJOS EV3
> IP lego
( 10.0.1.1)
21
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LeJOS
> "File" > "New" > "Project
> LeJOS EV3
22
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> ("File" > "New" > "Class")
> (.. sample)
> (.. LCDTest)
23
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LeJOS
public class EV3FirstProgram {
public static void main(String[] args) {
LCD.clear();
LCD.drawString("First EV3 Program", 0, 5);
Button.waitForAnyPress();
LCD.clear();
LCD.refresh();
}
}
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Stephen Chin tweet: @steveonjava
blog: http://steveonjava.com
nighthacking.com
Real Geeks
Live Hacking
NightHacking Tour
Hacking!
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1
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2
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1
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2
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1
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2
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1
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2
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1
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1
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1
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,
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46
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> Port A
> Port B
> Port 1
47
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1
EC:
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EC:
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public class WindTurbine {
public static void main(String[] args) {
EV3MediumRegulatedMotor fan =
new EV3MediumRegulatedMotor(MotorPort.A);
fan.setSpeed(1500);
fan.setAcceleration(150);
fan.backward();
Delay.msDelay(10000);
}
}
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public class WindTurbine {
public static void main(String[] args) {
EV3LargeRegulatedMotor base =
new EV3LargeRegulatedMotor(MotorPort.B);
base.setSpeed(80);
base.rotateTo(-90);
base.rotateTo(90);
}
}
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public class WindTurbine {
public static void main(String[] args) {
EV3ColorSensor light =
new EV3ColorSensor(SensorPort.S1);
float[] sample = new float[1];
SensorMode mode = light.getAmbientMode();
mode.fetchSample(sample, 0);
LCD.drawString("Light = " + sample[0], 0, 4);
Delay.msDelay(5000);
}
}
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> :
1.
2.
3.
4.
http://commons.wikimedia.org/wiki/Wind_generator#mediaviewer/File:Eolienne_et_centrale_thermique_Nuon_Sloterdijk.jpg
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Stephen Chin tweet: @steveonjava
blog: http://steveonjava.com
nighthacking.com
Real Geeks
Live Hacking
NightHacking Tour
-
. . , . , , Oracle Oracle.
