Energia

Energia IDE

Energia is a fork of Arduino’s Processing IDE for TI’s MSP430 microcontrollers.

Examples

Potentiometer

Analog Read (A0 or P1_0)

StellarPad running a Energia sketch

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

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

Links

• https://github.com/energia/Energia/wiki
• Forum http://forum.43oh.com/forum/28-energia/