board.on('ready', function() {
oled = new Oled(board, five, opts);
oled.turnOnDisplay();
oled.clearDisplay(true);
oled.update();
});
board.on('ready',function(){
//initialize the oled screen
oled = new Oled(board,five,
{
width:128,
height:64,
address:0x3D
}
);
//initialize the y-axis potentiometer
potVertical = new five.Sensor({
pin: "A0",
freq:250
});
//initialize the x-axis potentiometer
potHorizontal = new five.Sensor({
pin: "A1",
freq:250
});
//initialize a button
clearButton = new five.Button(2);
//hook up the pot to update the movement on the y-axis
potVertical.scale(0,oled.HEIGHT).on("change",function(){
currentY = Math.round(this.value);
oled.drawLine(lastX,lastY,currentX,currentY,1,true);
lastX = currentX;
lastY = currentY;
});
//hook up the pot to update the movement on the x-axis
potHorizontal.scale(0,oled.WIDTH).on("change",function(){
currentX = Math.round(this.value);
//flip the value if your potiontiometer is hooked the other way around
currentX = Math.abs(currentX - oled.WIDTH);
oled.drawLine(lastX,lastY,currentX,currentY,1,true);
lastX = currentX;
lastY = currentY;
});
//initialize the cursor y-position
potVertical.scale(0,oled.HEIGHT).on("data",function(){
if(currentY === null){
lastY = Math.round(this.value);
currentY = lastY;
}
});
//initialize the cursor x-position
potHorizontal.scale(0,oled.WIDTH).on("data",function(){
if(currentX === null){
currentX = Math.round(this.value);
//flip the value if your potiontiometer is hooked the other way around
currentX = Math.abs(currentX - oled.WIDTH);
lastX = currentX;
}
});
//setup up the button to clear the display
clearButton.on("down",function(){
oled.clearDisplay();
});
//get the display ready
oled.update();
oled.dimDisplay(true);
oled.clearDisplay();
});