File - Blog Software Anarchitects

ARDUINO
Hardware : arduino UNO 8€
2005, Atmel/ATmega, 32k, 16Mhz, http://arduino.cc/en/Main/Products
Arduino IDE
http://arduino.cc/en/main/software
C++
BareMinimum
void setup() {
// put your setup code here, to run once:
}
void loop() {
// put your main code here, to run repeatedly:
}
Bread board
Led blink (100 pour 2€)
void setup() {
// initialize digital pin 13 as an output.
pinMode(13, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000);
// wait for a second
digitalWrite(13, LOW);
delay(1000);
}
// turn the LED off by making the voltage LOW
// wait for a second
Led Fade
Pulse Width Modulation
int led = 9;
// the pin that the LED is attached to
int brightness = 0; // how bright the LED is
int fadeAmount = 5; // how many points to fade the LED by
// the setup routine runs once when you press reset:
void setup() {
// declare pin 9 to be an output:
pinMode(led, OUTPUT);
}
// the loop routine runs over and over again forever:
void loop() {
// set the brightness of pin 9:
analogWrite(led, brightness);
// change the brightness for next time through the loop:
brightness = brightness + fadeAmount;
// reverse the direction of the fading at the ends of the fade:
if (brightness == 0 || brightness == 255) {
fadeAmount = -fadeAmount ;
}
// wait for 30 milliseconds to see the dimming effect
delay(30);
}
Scratch with Arduino = S4A
http://s4a.cat/
charger S4Afirmware16.uno sur l’arduino
scratch prend le contrôle
Température LM35 1€
void loop(){
int temp = analogRead(inputPin);
float millivolts = (temp / 1024.0) * 500;
int celsius = millivolts; // sensor output is 10mV per degree Celsius
Serial.println(celsius);
delay(delaySend);
}
Utilisation de données
Python, Go, Java, C, ...
Choix python librairie Pyserial la plus utilisée
sudo easy_install -U pyserial
http://playground.arduino.cc/Interfacing/Python
Programme Python
import sys
import serial
devArduino='/dev/tty.usbmodem1421'
try:
ser = serial.Serial(devArduino, 9600)
except:
print 'Arduino not found --> ', sys.exc_info()[1]
exit(0)
print ser
while 1 :
input=ser.readline()
print input
print 'serial closed'
ser.close
InfluxDB
Time series database
influxdb -config=/usr/local/etc/influxdb.conf
http://localhost:8083/ (root/root)
list series;
select * from TEMP01;
select * from TEMP01 where time > now() - 1h;
Call rest python to influxDB
https://github.com/influxdb/influxdb-python
easy_install influxdb
Ajout dans le programme
host='localhost'
port = 8086
user = "root"
password = "root"
db_name = "probes"
db = influxdb.InfluxDBClient(host, port, user, password)
db.switch_db(db_name)
series = db.query("list series;")
print "series: {0}".format(series)
print 'Connection to InfluxDB\n'
------
json_body = [{ "points":[[value]], "name":key, "columns":["value"]}]
db.write_points_with_precision(json_body, time_precision='u')
UI Vocal
Get last temperature from InfluxDB
Javascript
Gauge
Text to command
Google to speech
Basic items
Breadboard : 2€
Fils : 2€
Resistances 400 pour 3€
Input
Joystick : x,y et push 2€
Keypad : clavier chiffres, lettres 0,5€
Boutons : 50 pour 3€
Telecommande : 2€
Potentiometre : 1€
Sensor
Eau 1€
Feu 1€
CO 2€
Distance par ultrason 1€
Infrarouge
RFID
Ligth
Tilt
Temperature
Humidité
Pression
Présence
Contact
Moteur
Moteur pas à pas 1€
Moteur On/Off
Moteur servo : x degrés
Display
Led one color : 100 pour 2 €
Led RGB : 1€
Led strip RGB 5m 13€
LCD 3€
Led infrarouge : 10 pour 1€
Matrice
Ciphers
Relay
1 realy 220V 1€
Son
Buzer
Cartes
Carte RJ45 + SD : 15€
Carte prototype : 3€
Communication Wireles 2€
Pas encore testé
433 Mhz (EU Ok)
Pas cher
100m
Télécommande
Atmega microcontrolleur standalone