Energia
Energia is a fork of Arduino’s Processing IDE for TI’s MSP430 microcontrollers.
Examples
Potentiometer
const int analogInPin = A0; // or P1_0 with Launchpad P1.0 Analog input pin that the potentiometer is attached to
// or PB5 with StellarPad PB5 Analog input pin that the potentiometer is attached to
int sensorValue = 0; // value read from the pot
void setup() {
// initialize serial communications at 9600 bps:
Serial.begin(9600); // 4800 with msp430g2231
}
void loop() {
// read the analog in value:
sensorValue = analogRead(analogInPin);
// print the results to the serial monitor:
Serial.print("sensor = " );
Serial.print(sensorValue);
Serial.println();
// wait 10 milliseconds before the next loop
// for the analog-to-digital converter to settle
// after the last reading:
delay(10);
}
3 Buttons Pad
/*
Tree buttons pad
*/
// set pin numbers:
const int button1Pin = P1_3; // the number of the pushbutton pin
const int button2Pin = P1_4; // the number of the pushbutton pin
const int button3Pin = P1_5; // the number of the pushbutton pin
const int ledPin = GREEN_LED; // the number of the LED pin
// variables will change:
boolean ledState = false; // variable for reading the pushbutton status
int buttonsStates = 0; // variable for reading the pushbutton status
void setup() {
Serial.begin(9600); // starts the serial monitor
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
// initialize the pushbutton pin as an input:
pinMode(button1Pin, INPUT_PULLUP);
pinMode(button2Pin, INPUT_PULLUP);
pinMode(button3Pin, INPUT_PULLUP);
buttonsStates=readButtonsStates();
Serial.println(buttonsStates);
}
int readButtonsStates(){
int _buttonsStates=0;
if (digitalRead(button1Pin) == LOW) {
_buttonsStates |= B1;
}
if (digitalRead(button2Pin) == LOW) {
_buttonsStates |= B10;
}
if (digitalRead(button3Pin) == LOW) {
_buttonsStates |= B100;
}
return _buttonsStates;
}
void toogle(){
if (ledState) {
// turn LED off:
digitalWrite(ledPin, LOW);
} else {
// turn LED on:
digitalWrite(ledPin, HIGH);
}
ledState=!ledState;
}
void loop(){
int _buttonsStates=readButtonsStates();
// send changes only
if(buttonsStates != _buttonsStates) {
buttonsStates = _buttonsStates;
Serial.print(buttonsStates);
toogle(); // for debug
}
delay(50);
}
Récupération de la sortie avec Node.js
// launchpad.js <port>
var port = process.argv[2];
var serialport = require('serialport');
var sp = new serialport.SerialPort(port, {
baudrate: 9600,
parser: serialport.parsers.readline('\r\n')});
sp.on('data', function(line) {
console.log(line);
});
npm install serialport node launchpad.js /dev/tty.uart-XYZ
Supported Boards
- LaunchPad with msp430g2231,
- LaunchPad with msp430g2452,
- LaunchPad with msp430g2553,
- FraunchPad with msp430fr5739
- Stellaris Launchpad.
Pin mapping
https://github.com/energia/Energia/wiki/Hardware#wiki-LaunchPad_MSP430G2452