from bottle import route, run
import RPi.GPIO as GPIO
host = '192.168.1.105'
pinButton = 17
pinLed = 18
GPIO.setmode(GPIO.BCM)
# pin 17 as input with pull-up resistor
GPIO.setup(pinButton, GPIO.IN, pull_up_down=GPIO.PUD_UP)
# pin 18 as output
GPIO.setup(pinLed, GPIO.OUT)
LedState = False
def read_button():
if GPIO.input(pinButton):
return 'Released'
else:
return 'Pressed'
def update_led():
GPIO.output(pinLed, LedState)
def toggleLed():
global LedState
LedState = not LedState
@route('/')
@route('/<arg>')
def index(arg=""):
if arg == "toggle":
toggleLed()
update_led()
response = "<html>\n"
response += "<body>\n"
response += "<script>\n"
response += "function changed()\n"
response += "{window.location.href='/toggle'}\n"
response += "</script>\n"
response += "Button: " + read_button() +"\n"
response += "<br/><br/>\n"
response += "<input type='button' onClick='changed()' value=' LED '/>\n"
response += "</body></html>\n"
return response
run(host=host, port=80)
import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)
# pin 17 as input with pull-up resistor
GPIO.setup(17, GPIO.IN, pull_up_down=GPIO.PUD_UP)
# pin 18 as output
GPIO.setup(18, GPIO.OUT)
def ButtonCallback(channel):
if (GPIO.input(17)):
GPIO.output(18, False)
else:
GPIO.output(18, True)
GPIO.add_event_detect(17, GPIO.BOTH, callback=ButtonCallback);
while(True):
#do nothing
time.sleep(1)
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
# pin 17 as input with pull-up resistor
GPIO.setup(17, GPIO.IN, pull_up_down=GPIO.PUD_UP)
# pin 18 as output
GPIO.setup(18, GPIO.OUT)
while(True):
if (GPIO.input(17)):
GPIO.output(18, False)
else:
GPIO.output(18, True)
import RPi.GPIO as GPIO
import time
led_pin = 18
GPIO.setmode(GPIO.BCM)
GPIO.setup(led_pin, GPIO.OUT)
#frequency 500 Hz
led_pwm = GPIO.PWM(led_pin, 500)
#duty cycle = 100
led_pwm.start(100)
while(True):
led_pwm.ChangeDutyCycle(100)
time.sleep(1)
led_pwm.ChangeDutyCycle(80)
time.sleep(1)
led_pwm.ChangeDutyCycle(60)
time.sleep(1)
led_pwm.ChangeDutyCycle(40)
time.sleep(1)
led_pwm.ChangeDutyCycle(20)
time.sleep(1)
led_pwm.ChangeDutyCycle(0)
time.sleep(1)
import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.OUT)
while(True):
GPIO.output(18, True)
time.sleep(1.5)
GPIO.output(18, False)
time.sleep(0.5)
$ sudo apt-get update
$ sudo apt-get dist-upgrade
$ sudo apt-get install epiphany-browser
package java_jssc_uno;
import java.util.logging.Level;
import java.util.logging.Logger;
import jssc.SerialPort;
import jssc.SerialPortException;
public class Java_jSSC_Uno {
public static void main(String[] args) {
SerialPort serialPort = new SerialPort("/dev/ttyACM0");
try {
System.out.println("Port opened: " + serialPort.openPort());
try {
Thread.sleep(3000);
} catch (InterruptedException ex) {
Logger.getLogger(Java_jSSC_Uno.class.getName()).log(Level.SEVERE, null, ex);
}
System.out.println("Params setted: " + serialPort.setParams(9600, 8, 1, 0));
System.out.println("\"Hello World!!!\" successfully writen to port: " + serialPort.writeBytes("Java_jSSC_Uno".getBytes()));
System.out.println("Port closed: " + serialPort.closePort());
}
catch (SerialPortException ex){
System.out.println(ex);
}
}
}
var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var SerialPort = require("serialport").SerialPort
var serialPort = new SerialPort('/dev/ttyACM0',
{ baudrate: 9600
});
serialPort.on("open", function () {
console.log('open');
});
app.get('/', function(req, res){
res.sendfile('index.html');
});
io.on('connection', function(socket){
socket.on('chat message', function(msg){
io.emit('chat message', msg);
serialPort.write(msg, function(err, results) {
console.log('err ' + err);
console.log('results ' + results);
});
});
});
http.listen(3000, function(){
console.log('listening on *:3000');
});