Gist for Particle.io Photon to display an image on Sharp Memory LCD

dustins-display.ino

/*********************************************************************
This is an example sketch for our Monochrome SHARP Memory Displays

  Pick one up today in the adafruit shop!
  ------> http://www.adafruit.com/products/1393

These displays use SPI to communicate, 3 pins are required to  
interface

Adafruit invests time and resources providing this open source code, 
please support Adafruit and open-source hardware by purchasing 
products from Adafruit!

Written by Limor Fried/Ladyada  for Adafruit Industries.  
BSD license, check license.txt for more information
All text above, and the splash screen must be included in any redistribution
*********************************************************************/
#include "fonts.h"
#include "Adafruit_mfGFX.h"
#include "Adafruit_SharpMem.h"

/*********************************************************************
Our pin setup for the Spark

CLK = pin A3 
DI = pin A5
CS = pin A1

To convert your image to a Bitmap make the image 96px x 96px in a program like Photoshop. 
One the image is the correct size go to http://www.digole.com/tools/PicturetoC_Hex_converter.php
to convert your image to a hex value like shown below.
*********************************************************************/

Adafruit_SharpMem display(SCK, MOSI, A1);    //SCK, MOSI, SS


#define BLACK 0
#define WHITE 1

//Dustins Words custom bitmap

const uint8_t qr[] = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x03,0xf8,0x07,0xf0,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x1f,0xff,0x3f,0xfe,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x7c,0x03,0xf8,0x07,0x80,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0xe0,0x00,0xf0,0x01,0xe0,0x00,0x00,0x00
,0x00,0x00,0x00,0x03,0x80,0x00,0x38,0x00,0x70,0x00,0x00,0x00
,0x00,0x00,0x00,0x07,0x00,0x00,0x1c,0x00,0x38,0x00,0x00,0x00
,0x00,0x00,0x00,0x06,0x00,0x00,0x0c,0x00,0x1c,0x00,0x00,0x00
,0x00,0x00,0x00,0x0c,0x00,0x00,0x06,0x00,0x0c,0x00,0x00,0x00
,0x00,0x00,0x00,0x1c,0x00,0x00,0x03,0x00,0x06,0x00,0x00,0x00
,0x00,0x00,0x00,0x18,0x00,0x00,0x03,0x00,0x06,0x00,0x00,0x00
,0x00,0x00,0x00,0x38,0x00,0x00,0x01,0x80,0x03,0x00,0x00,0x00
,0x00,0x00,0x00,0x30,0x00,0x00,0x01,0x80,0x03,0x00,0x00,0x00
,0x00,0x00,0x00,0x30,0x00,0x00,0x01,0x80,0x01,0x00,0x00,0x00
,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0xc0,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0xc0,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0xc0,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0xc0,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0xc0,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0xc0,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x80,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0x30,0x00,0x00,0x01,0x80,0x03,0x00,0x00,0x00
,0x00,0x00,0x00,0x30,0x00,0x00,0x01,0x80,0x03,0x00,0x00,0x00
,0x00,0x00,0x00,0x18,0x00,0x00,0x03,0x00,0x03,0x00,0x00,0x00
,0x00,0x00,0x00,0x18,0x00,0x00,0x03,0x00,0x06,0x00,0x00,0x00
,0x00,0x00,0x00,0x0c,0x00,0x00,0x06,0x00,0x0e,0x00,0x00,0x00
,0x00,0x00,0x00,0x0e,0x00,0x00,0x0e,0x00,0x0c,0x00,0x00,0x00
,0x00,0x00,0x00,0x07,0x00,0x00,0x1c,0x00,0x18,0x00,0x00,0x00
,0x00,0x00,0x00,0x03,0x80,0x00,0x38,0x00,0x30,0x00,0x00,0x00
,0x00,0x00,0x00,0x01,0xc0,0x00,0x70,0x00,0xe0,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0xf0,0x01,0xf0,0x03,0xc0,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x3f,0xbf,0xff,0x7f,0xc0,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x1f,0xff,0xff,0xff,0xf0,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x7e,0x00,0x00,0x00,0x7c,0x00,0x00,0x00
,0x00,0x00,0x00,0x01,0xe0,0x00,0x00,0x00,0x0e,0x00,0x00,0x00
,0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,0x06,0x00,0x00,0x00
,0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00
,0x00,0x00,0x00,0x0c,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00
,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x00,0xc0,0x00,0x00,0x00,0x00,0x03,0x80,0x00,0x00
,0x00,0x00,0x00,0xc0,0x00,0x00,0x00,0x00,0x03,0x80,0x00,0x00
,0x00,0x00,0x00,0xc0,0x00,0x00,0x00,0x00,0x07,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x1d,0x80,0x00,0x00
,0x00,0x00,0x01,0x87,0xff,0xff,0xff,0xff,0xf9,0x80,0x00,0x00
,0x00,0x00,0x01,0x9f,0xff,0xff,0xff,0xff,0xc1,0x80,0x00,0x00
,0x00,0x00,0x01,0xb8,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0xe0,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0xc0,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0xc0,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0xc0,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0xc0,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0xe0,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0xb8,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x9f,0xff,0xff,0xff,0x80,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x87,0xff,0xff,0xff,0x80,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
,0x00,0x00,0x01,0x80,0x00,0x00,0xc0,0x00,0x01,0x80,0x00,0x00
};

void setup(void) 
{


  SPI.begin();
  SPI.setBitOrder(MSBFIRST);
  SPI.setDataMode(SPI_MODE0);
  SPI.setClockDivider(SPI_CLOCK_DIV16);
  
  display.init();       // Initialize the hardware ports since cannot be done in class instantation above
  Serial.begin(9600);
  Serial.println("Hello!");
  

  // start & clear the display
  display.begin();
  display.clearDisplay();

  // draw a single pixel
  display.drawPixel(10, 10, BLACK);
  display.refresh();
  delay(500);
  display.clearDisplay();

  // draw many lines
  testdrawline();
  delay(500);
  display.clearDisplay();

  // draw rectangles
  testdrawrect();
  delay(500);
  display.clearDisplay();

  // draw multiple rectangles
  testfillrect();
  display.refresh();
  delay(500);
  display.clearDisplay();

  // draw a circle, 10 pixel radius
  display.fillCircle(display.width()/2, display.height()/2, 10, BLACK);
  display.refresh();
  delay(500);
  display.clearDisplay();

  testdrawroundrect();
  display.refresh();  
  delay(500);
  display.clearDisplay();

  testfillroundrect();
  display.refresh();
  delay(500);
  display.clearDisplay();

  testdrawtriangle();
  display.refresh();
  delay(500);
  display.clearDisplay();
   
  testfilltriangle();
  display.refresh();
  delay(500);
  display.clearDisplay();

  // draw the first ~12 characters in the font
  testdrawchar();
  display.refresh();
  delay(500);
  display.clearDisplay();

  // text display tests
  display.setTextSize(2);
  display.setTextColor(BLACK);
  display.setCursor(0,0);
  delay(500);

  //Our custom image
  //display.println("Hello, Dustin's Words!");
  display.drawBitmap(0,0,qr,96,96,0);                 // This is the custom bitmap call
  display.refresh();
  delay(500);
  //Spark.variable("qr", &qr, INT);
  //Spark.publish("icon",qr);

}

void loop(void) 
{
  // Screen must be refreshed at least once per second
  display.refresh();
  delay(500);
}

///

void testdrawchar(void) {
  display.setTextSize(1);
  display.setTextColor(BLACK);
  display.setCursor(0,0);

  for (uint8_t i=0; i < 168; i++) {
    if (i == '\n') continue;
    display.write(i);
    //if ((i > 0) && (i % 14 == 0))
      //display.println();
  }    
  display.refresh();
}

void testdrawcircle(void) {
  for (uint8_t i=0; i<display.height(); i+=2) {
    display.drawCircle(display.width()/2-5, display.height()/2-5, i, BLACK);
    display.refresh();
  }
}

void testfillrect(void) {
  uint8_t color = 1;
  for (uint8_t i=0; i<display.height()/2; i+=3) {
    // alternate colors
    display.fillRect(i, i, display.width()-i*2, display.height()-i*2, color%2);
    display.refresh();
    color++;
  }
}

void testdrawtriangle(void) {
  for (uint16_t i=0; i<min(display.width(),display.height())/2; i+=5) {
    display.drawTriangle(display.width()/2, display.height()/2-i,
                     display.width()/2-i, display.height()/2+i,
                     display.width()/2+i, display.height()/2+i, BLACK);
    display.refresh();
  }
}

void testfilltriangle(void) {
  uint8_t color = BLACK;
  for (int16_t i=min(display.width(),display.height())/2; i>0; i-=5) {
    display.fillTriangle(display.width()/2, display.height()/2-i,
                     display.width()/2-i, display.height()/2+i,
                     display.width()/2+i, display.height()/2+i, color);
    if (color == WHITE) color = BLACK;
    else color = WHITE;
    display.refresh();
  }
}

void testdrawroundrect(void) {
  for (uint8_t i=0; i<display.height()/4; i+=2) {
    display.drawRoundRect(i, i, display.width()-2*i, display.height()-2*i, display.height()/4, BLACK);
    display.refresh();
  }
}

void testfillroundrect(void) {
  uint8_t color = BLACK;
  for (uint8_t i=0; i<display.height()/4; i+=2) {
    display.fillRoundRect(i, i, display.width()-2*i, display.height()-2*i, display.height()/4, color);
    if (color == WHITE) color = BLACK;
    else color = WHITE;
    display.refresh();
  }
}
   
void testdrawrect(void) {
  for (uint8_t i=0; i<display.height()/2; i+=2) {
    display.drawRect(i, i, display.width()-2*i, display.height()-2*i, BLACK);
    display.refresh();
  }
}

void testdrawline() {  
  for (uint8_t i=0; i<display.width(); i+=4) {
    display.drawLine(0, 0, i, display.height()-1, BLACK);
    display.refresh();
  }
  for (uint8_t i=0; i<display.height(); i+=4) {
    display.drawLine(0, 0, display.width()-1, i, BLACK);
    display.refresh();
  }
  delay(250);
  
  display.clearDisplay();
  for (uint8_t i=0; i<display.width(); i+=4) {
    display.drawLine(0, display.height()-1, i, 0, BLACK);
    display.refresh();
  }
  for (int8_t i=display.height()-1; i>=0; i-=4) {
    display.drawLine(0, display.height()-1, display.width()-1, i, BLACK);
    display.refresh();
  }
  delay(250);
  
  display.clearDisplay();
  for (int8_t i=display.width()-1; i>=0; i-=4) {
    display.drawLine(display.width()-1, display.height()-1, i, 0, BLACK);
    display.refresh();
  }
  for (int8_t i=display.height()-1; i>=0; i-=4) {
    display.drawLine(display.width()-1, display.height()-1, 0, i, BLACK);
    display.refresh();
  }
  delay(250);

  display.clearDisplay();
  for (uint8_t i=0; i<display.height(); i+=4) {
    display.drawLine(display.width()-1, 0, 0, i, BLACK);
    display.refresh();
  }
  for (uint8_t i=0; i<display.width(); i+=4) {
    display.drawLine(display.width()-1, 0, i, display.height()-1, BLACK); 
    display.refresh();
  }
  delay(250);
}