Node For MegaPi

How To Use

• Compile and upload the Firmware to your MegaPi ( https://github.com/Makeblock-Official/FirmwareForMegaPi )
• On your Raspberry Pi,

npm install megapi

• Insert the initial code for starting MegaPi first.

var MegaPi = require("megapi").MegaPi;
var bot = new MegaPi("/dev/ttyS0", onStart); //"/dev/ttyAMA0" for rpi2, "/dev/ttyS0" for rpi3
function onStart(){
  //start your code
  setTimeout(loop,500);
}
var level = 0;
function loop(){
  bot.digitalWrite(13, level);
  level = 1-level;
  setTimeout(loop,500);
}

• node your code

Node API

• Start
  • MegaPi( serialport, function onStart)
• GPIO
  • digitalWrite( pin, level )
  • pwmWrite( pin, pwm )
  • digitalRead( pin, function onResult )
  • analogRead( pin, function onResult )
• Motion
  • DC Motor
    • dcMotorRun( port, speed )
  • Servo Motor
    • servoRun( port, slot, angle )
  • Encoder Motor
    • encoderMotorRun( port, speed )
    • encoderMotorMove( port, speed, distance, function onFinish )
    • encoderMotorMoveTo( port, speed, position, function onFinish )
  • Stepper Motor
    • stepperMotorSetting( port, microsteps, acceleration )
    • stepperMotorRun( port, speed )
    • stepperMotorMove( port, speed, distance, function onFinish )
    • stepperMotorMoveTo( port, speed, position, function onFinish )
• Sensors
  • Ultrasonic Sensor
    • ultrasonicSensorRead ( port, function onResult )
  • LineFollow Sensor
    • lineFollowerRead ( port, function onResult )
  • Light Sensor
    • lightSensorRead ( port, function onResult )
  • Sound Sensor
    • soundSensorRead ( port, function onResult )
  • Temperature Sensor
    • temperatureRead ( port, function onResult )
  • PIR Motion Sensor
    • pirMotionSensorRead ( port, function onResult )
  • Touch Sensor
    • touchSensorRead ( port, function onResult )
  • LimitSwitch
    • limitSwitchRead ( port, slot, function onResult )
  • Humiture Sensor
    • humitureSensorRead ( port, type, function onResult )
  • Gas Sensor
    • gasSensorRead ( port, function onResult )
  • Flame Sensor
    • flameSensorRead ( port, function onResult )
  • Button
    • buttonRead ( port, function onResult )
  • Potentiometer
    • potentiometerRead ( port, function onResult )
  • Joystick
    • joystickRead ( port, axis, function onResult )
  • 3-Axis Accelerometer and Gyro Sensor
    • gyroRead ( axis, function onResult )
  • Compass
    • compassRead ( function onResult )
• Display
  • RGB Led
    • rgbledDisplay ( port, slot, index, r, g, b )
    • rgbledShow ( port, slot )
  • 7-segment Display
    • sevenSegmentDisplay ( port, value )
  • Led Matrix Display
    • ledMatrixMessage ( port, x, y, msg )
    • ledMatrixDisplay ( port, x, y, buffer )
  • Serial LCD Display
    • lcdDisplay ( string )
• Others
  • DSLR Shutter
    • shutterOn ( port )
    • shutterOff ( port )
    • focusOn ( port )
    • focusOff ( port )