Pin 8 does not support mode 1

[andrewbhennessy]

var Raspi = require("raspi-io");
var five = require("johnny-five");
var pitft = require("pitft");
var sleep = require('sleep');
var
//var pitftTouch = require('pitft-touch');

var WriteVolumeAddress=0x4B;
var ReadStrokeAddress=8;
var volumeLevel=31;
var isStarted=false;

var fb = pitft("/dev/fb1"); // Returns a framebuffer in direct mode.  See the clock.js example for double buffering mode
//var touchscreen = pitftTouch("/dev/input/touchscreen");

var xMax = fb.size().width;
console.log(xMax);
var yMax = fb.size().height;
console.log(yMax);

// Clear the screen buffer
fb.clear();
fb.color(1, 1, 1); // Set the color to whit
fb.font("fantasy", 12); // Use the "fantasy" font with size 12

fb.text(0,20,"This will never work.",false);

console.log("Starting Board");

var board = new five.Board({
  io: new Raspi()
});

board.on("ready", function() {
  //Prepare i2c Data
  new five.Pin('SDA0',five.Pin.i2c);

  //prepare buttons from TFT
  var buttonOne = new five.Button(0);
  var buttonTwo = new five.Button(3);
  var buttonThree = new five.Button(4);
  var buttonFour = new five.Button(2);

  //prepare imu
  var imu = new five.IMU({
    controller: "MPU6050"
  });

  //prepare gps
  var gps = new five.GPS({
    breakout: "ADAFRUIT_ULTIMATE_GPS",
    pins: ['P1-8', 'P1-10']
  });

  //create a function that reads the Volume.
  function readVolume(address){
    return defaultVolumeLevel;
  }

  //create a cunction that writes Volume
  function writeVolume(address,volume){
    return board.io.i2cwrite(address,volume)
    //sample writeVolume(WriteVolumeAddress,defaultVolumeLevel);
  }

  //create a function that read's stroke rate.
  function readStrokeRate(address){
    return board.io.i2cread(address,4,true);
    //sample readStrokeRate(ReadStrokeAddress);
  }

  //default volume
  writeVolume(writeVolumeAddress,volumeLevel);

  buttonOne.on("press", function() {
    writeVolume(WriteVolumeAddress,VolumeLevel+1);
    VolumeLevel = VolumeLevel+1
    console.log( "Increased Volume" );
  });

  buttonTwo.on("press", function() {
    writeVolume(writeVolumeAddress,VolumeLevel-1);
    VolumeLevel = VolumeLevel-1
    console.log( "Decreased Volume" );
  });

  buttonThree.on("press", function() {
    if (isStarted == false){
      //startSomething();
      console.log("Started");
    }else{
      //stopSomething();
      console.log("Stopped");
    }
  });

  buttonThree.on("hold", function() {
    //resetTimer();
    isStarted = false;
    console.log( "Reset" );
  });

  buttonFour.on("press", function() {
    console.log( "IDK fam" );
    //doSumting();
  });

  touchscreen.on("data.touch", function() {
    var screenX = ((270 - 50) / (693 - 3307)) * data.x + 320;
    var screenY = ((190 - 50) / (3220 - 996)) * data.y;
    console.log("  screenX   : ", screenX);
    console.log("  screenY  : ", screeny);
  });

  gps.on("change", function() {
    console.log("GPS Data");
    console.log("  Speed   : ", gps.speed);
    console.log("  Course  : ", gps.course);
    console.log("  latitude   : ", gps.latitude);
    console.log("  longitude  : ", gps.longitude);
    console.log("  altitude   : ", gps.altitude);
    console.log("MPU6050 Roll Data");
    console.log("  pitch   : ", imu.gyro.pitch);
    console.log("MPU6050 Starting Acceleration");
    console.log("  Acceleration   : ", imu.accelerometer.acceleration);
    console.log("MPU6050 Temp");
    console.log("  fahrenheit   : ", imu.thermometer.fahrenheit);
    console.log("Volume");
    console.log("  Volume   : ",volumeLevel);
    console.log("Stroke Rate");
    console.log("  Stroke Rate   : ",readStrokeRate(ReadStrokeAddress));
    console.log("--------------------------------------");
  });
});

My Code above.

My error's

23.11.16 00:42:11 [-0500] 320
23.11.16 00:42:11 [-0500] 240
23.11.16 00:42:11 [-0500] Starting Board
23.11.16 00:42:11 [-0500] 1479879731387 Device(s) RaspberryPi-IO
23.11.16 00:42:11 [-0500] 1479879731470 Connected RaspberryPi-IO
23.11.16 00:42:11 [-0500] 1479879731512 Repl Initialized 
23.11.16 00:42:11 [-0500] GJ>> G/usr/src/app/node_modules/raspi-io/lib/index.js:366
23.11.16 00:42:11 [-0500] throw new Error('Pin "' + pin + '" does not support mode "' + mode + '"');
23.11.16 00:42:11 [-0500] ^
23.11.16 00:42:11 [-0500]
23.11.16 00:42:11 [-0500] Error: Pin "8" does not support mode "1"
23.11.16 00:42:11 [-0500] at Raspi.value (/usr/src/app/node_modules/raspi-io/lib/index.js:366:15)
23.11.16 00:42:11 [-0500] at Raspi.pinMode (/usr/src/app/node_modules/raspi-io/lib/index.js:348:21)
23.11.16 00:42:11 [-0500] at Pin.set (/usr/src/app/node_modules/johnny-five/lib/pin.js:82:17)
23.11.16 00:42:11 [-0500] at new Pin (/usr/src/app/node_modules/johnny-five/lib/pin.js:90:13)
23.11.16 00:42:11 [-0500] at Board.<anonymous> (/usr/src/app/server.js:36:3)
23.11.16 00:42:11 [-0500] at emitNone (events.js:91:20)
23.11.16 00:42:11 [-0500] at Board.emit (events.js:185:7)
23.11.16 00:42:11 [-0500] at _combinedTickCallback (internal/process/next_tick.js:67:7)
23.11.16 00:42:11 [-0500] at process._tickDomainCallback (internal/process/next_tick.js:122:9)

I think the tutorial code was too generous in saying:

var raspi = require('raspi-io');
var five = require('johnny-five');
var board = new five.Board({
  io: new raspi()
});

board.on('ready', function() {
  new five.Pin('SDA');
  board.io.i2cWrite(0x18, 0x5, 'hello');
});

I Found that here: https://www.npmjs.com/package/raspi-i2c

[nebrius]

The error code you're getting is accurate, pin 8 in fact does not support mode 1.

Let's break down what's happening here. When you create a pin via new five.Pin and you pass it a pin number, you are creating a digital input pin (this is mode 1). You are passing in SDA to the pin constructor, which maps to pin 8 under the hood and is an I2C pin. Now here's the thing, as stated in the Raspi IO README, the I2C pins cannot be used for digital input (or output).

It looks like you're trying to use raspi-io to communicate over I2C, so to fix your code all you need to do is delete the line that says new five.Pin('SDA'); so that it looks like this:

var raspi = require('raspi-io');
var five = require('johnny-five');
var board = new five.Board({
  io: new raspi()
});

board.on('ready', function() {
  board.io.i2cWrite(0x18, 0x5, 'hello');
});

Let me know if this fixes it for you.

[nebrius]

Closing for now, since I don't think there's a bug here. Feel free to reopen if you want!