[agriRC]

I am assumeing you can install the arduino IDE, connect arduino, find COM port, Wire up display to the I2C pins etc. Below is the code I used. You will require the associated libraries Adafruit GFX and Adafruit SSD1306.

Copy and paste code from the next post into ****Place Bitmaps Here*****.

Upload and your ready to go. Open comm port and set baud rate to 9600. Sending 1-4 switches the icons and sets a random fuel level and RPM.

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire);

int PTOSPEED = 0;
boolean DIFFLOCK = false;
boolean FOURWD = false;
boolean BEACONS = false;
int RPM = 0;
int fuelLevel = 0;

//****Place Bitmaps Here*****

void setup() {
  Serial.begin(9600); //Start serial comms
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3C for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for (;;); // Don't proceed, loop forever
  }
  display.setRotation(2); //rotate display as this is how the OLED is mounted physically
  display.clearDisplay(); //Clear buffer
  display.drawBitmap(0, 0,  johndeere, SCREEN_WIDTH, SCREEN_HEIGHT, 2); //Draw john deere logo to buffer
  display.display(); //Display Buffer to screen
  delay(1000); //Wait for one second
  display.setTextColor(WHITE); //set text colour to white
  drawScreen(); //run procedure called drawScreen
}

void loop() {
  if (Serial.available())  //Read serial and toggle variables by sending 1,2,3 or 4
  {
    byte in = Serial.read();
    {
      if (in == '1')
      {
        if (PTOSPEED == 1000)
        {
          PTOSPEED = 0;
        }
        else
        {
          PTOSPEED = PTOSPEED + 500;
        }
      }

    }
    if (in == '2')
    {
      DIFFLOCK = !DIFFLOCK;
    }
    if (in == '3')
    {
      FOURWD = !FOURWD;
    }
    if (in == '4')
    {
      BEACONS = !BEACONS;
    }
    drawScreen();
  }
}

void drawScreen()
{
  display.clearDisplay(); //clear buffer
  if (PTOSPEED == 0)
  {
    display.drawBitmap(0, 0,  PTOA, 31, 32, WHITE); //display PTO off image
  }
  else if (PTOSPEED == 500)
  {
    display.drawBitmap(0, 0,  PTOB, 31, 32, WHITE); //display PTO on image (500rpm)
  }
  else
  {
    display.drawBitmap(0, 0,  PTOB, 31, 32, WHITE); //display PTO on image (1000rpm)
  }
  display.drawRect(0, 0, 31, 32, WHITE); //Draw rectangle around PTO image

  if (DIFFLOCK)
  {
    display.drawBitmap(32, 0,  diffLockB, 31, 32, WHITE); //display diff lock on image
  }
  else
  {
    display.drawBitmap(32, 0,  diffLockA, 31, 32, WHITE); //display diff lock off image
  }
  display.drawRect(32, 0, 31, 32, WHITE); //Draw rectangle around diff lock image
  if (FOURWD)
  {
    display.drawBitmap(64, 0,  fourWheelDriveB, 31, 32, WHITE); //display 4WD on image
  }
  else
  {
    display.drawBitmap(64, 0,  fourWheelDriveA, 31, 32, WHITE); //display 4WD off image
  }
  display.drawRect(64, 0, 31, 32, WHITE); //Draw rectangle around 4WD image
  if (BEACONS)
  {
    display.drawBitmap(96, 0,  flashingBeaconsB, 31, 32, WHITE); //display beacon on image
  }
  else
  {
    display.drawBitmap(96, 0,  flashingBeaconsA, 31, 32, WHITE); //display beacon off image
  }
  display.drawRect(96, 0, 31, 32, WHITE); //Draw rectangle around beacon image
  display.setTextSize(2); //Change text size to 2
  RPM = random(750,3000); //pick a random number from 750 to 3000
  display.setCursor(50, 42); //set cursor text location for RPM position
  display.print(RPM); //print RPM variable
  display.setTextSize(1); //Change text size to 1
  display.setCursor(100, 42); //set cursor text location
  display.print("RPM"); //print RPM after variable
  int fuelLevel = random(0, 31); //Create a random variable for testing Level gauge
  display.drawBitmap(-5, 32,  fuel, 31, 32, WHITE); //Draw fuel gauge symbol
  display.drawRect(26, 33, 10, 31, WHITE); //draw gauge outline
  display.fillRect(26, fuelLevel + 33, 10, 31, WHITE); // draw solid infill for gauge level
  display.display(); //send buffer to display
}