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-rw-r--r--disp_proj.ino404
1 files changed, 72 insertions, 332 deletions
diff --git a/disp_proj.ino b/disp_proj.ino
index 4d0259d..0c16b94 100644
--- a/disp_proj.ino
+++ b/disp_proj.ino
@@ -1,27 +1,8 @@
-/**************************************************************************
- This is an example for our Monochrome OLEDs based on SSD1306 drivers
-
- Pick one up today in the adafruit shop!
- ------> http://www.adafruit.com/category/63_98
-
- This example is for a 128x32 pixel display using I2C to communicate
- 3 pins are required to interface (two I2C and one reset).
-
- 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,
- with contributions from the open source community.
- BSD license, check license.txt for more information
- All text above, and the splash screen below must be
- included in any redistribution.
- **************************************************************************/
-
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
+#include "marquee.h"
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
@@ -35,8 +16,6 @@
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
-#define NUMFLAKES 10 // Number of snowflakes in the animation example
-
#define LOGO_HEIGHT 30
#define LOGO_WIDTH 30
@@ -52,275 +31,82 @@ const unsigned char epd_bitmap_logoN [] PROGMEM = {
0x00, 0x04, 0x80, 0x00, 0x00, 0x03, 0x00, 0x00
};
-
-static const unsigned char PROGMEM logo_bmp[] =
-{ 0b00000000, 0b11000000,
- 0b00000001, 0b11000000,
- 0b00000001, 0b11000000,
- 0b00000011, 0b11100000,
- 0b11110011, 0b11100000,
- 0b11111110, 0b11111000,
- 0b01111110, 0b11111111,
- 0b00110011, 0b10011111,
- 0b00011111, 0b11111100,
- 0b00001101, 0b01110000,
- 0b00011011, 0b10100000,
- 0b00111111, 0b11100000,
- 0b00111111, 0b11110000,
- 0b01111100, 0b11110000,
- 0b01110000, 0b01110000,
- 0b00000000, 0b00110000 };
+marquee_t* marquee;
void setup() {
- Serial.begin(9600);
-
- // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
- if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
- Serial.println(F("SSD1306 allocation failed"));
- for(;;); // Don't proceed, loop forever
- }
-
- testdrawbitmap(); // Draw a small bitmap image
+ Serial.begin(9600);
+ // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
+ if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
+ Serial.println(F("SSD1306 allocation failed"));
+ for(;;); // Don't proceed, loop forever
+ }
+ write_logo();
+ delay(1000);
+ marquee = malloc(sizeof(marquee_t));
+ *marquee = make_marquee("Nat King Cole - Sweet Loraine");
}
void loop() {
-}
-
-void testdrawline() {
- int16_t i;
-
- display.clearDisplay(); // Clear display buffer
-
- for(i=0; i<display.width(); i+=4) {
- display.drawLine(0, 0, i, display.height()-1, SSD1306_WHITE);
- display.display(); // Update screen with each newly-drawn line
- delay(1);
- }
- for(i=0; i<display.height(); i+=4) {
- display.drawLine(0, 0, display.width()-1, i, SSD1306_WHITE);
- display.display();
- delay(1);
- }
- delay(250);
-
- display.clearDisplay();
-
- for(i=0; i<display.width(); i+=4) {
- display.drawLine(0, display.height()-1, i, 0, SSD1306_WHITE);
- display.display();
- delay(1);
- }
- for(i=display.height()-1; i>=0; i-=4) {
- display.drawLine(0, display.height()-1, display.width()-1, i, SSD1306_WHITE);
- display.display();
- delay(1);
- }
- delay(250);
-
- display.clearDisplay();
-
- for(i=display.width()-1; i>=0; i-=4) {
- display.drawLine(display.width()-1, display.height()-1, i, 0, SSD1306_WHITE);
- display.display();
- delay(1);
- }
- for(i=display.height()-1; i>=0; i-=4) {
- display.drawLine(display.width()-1, display.height()-1, 0, i, SSD1306_WHITE);
- display.display();
- delay(1);
- }
- delay(250);
-
- display.clearDisplay();
-
- for(i=0; i<display.height(); i+=4) {
- display.drawLine(display.width()-1, 0, 0, i, SSD1306_WHITE);
- display.display();
- delay(1);
- }
- for(i=0; i<display.width(); i+=4) {
- display.drawLine(display.width()-1, 0, i, display.height()-1, SSD1306_WHITE);
- display.display();
- delay(1);
- }
-
- delay(2000); // Pause for 2 seconds
-}
-
-void testdrawrect(void) {
- display.clearDisplay();
-
- for(int16_t i=0; i<display.height()/2; i+=2) {
- display.drawRect(i, i, display.width()-2*i, display.height()-2*i, SSD1306_WHITE);
- display.display(); // Update screen with each newly-drawn rectangle
- delay(1);
- }
-
- delay(2000);
-}
-
-void testfillrect(void) {
- display.clearDisplay();
-
- for(int16_t i=0; i<display.height()/2; i+=3) {
- // The INVERSE color is used so rectangles alternate white/black
- display.fillRect(i, i, display.width()-i*2, display.height()-i*2, SSD1306_INVERSE);
- display.display(); // Update screen with each newly-drawn rectangle
- delay(1);
- }
-
- delay(2000);
-}
-
-void testdrawcircle(void) {
- display.clearDisplay();
-
- for(int16_t i=0; i<max(display.width(),display.height())/2; i+=2) {
- display.drawCircle(display.width()/2, display.height()/2, i, SSD1306_WHITE);
- display.display();
- delay(1);
- }
-
- delay(2000);
-}
-
-void testfillcircle(void) {
- display.clearDisplay();
-
- for(int16_t i=max(display.width(),display.height())/2; i>0; i-=3) {
- // The INVERSE color is used so circles alternate white/black
- display.fillCircle(display.width() / 2, display.height() / 2, i, SSD1306_INVERSE);
- display.display(); // Update screen with each newly-drawn circle
- delay(1);
- }
-
- delay(2000);
-}
-
-void testdrawroundrect(void) {
- display.clearDisplay();
-
- for(int16_t i=0; i<display.height()/2-2; i+=2) {
- display.drawRoundRect(i, i, display.width()-2*i, display.height()-2*i,
- display.height()/4, SSD1306_WHITE);
- display.display();
- delay(1);
- }
-
- delay(2000);
-}
-
-void testfillroundrect(void) {
- display.clearDisplay();
-
- for(int16_t i=0; i<display.height()/2-2; i+=2) {
- // The INVERSE color is used so round-rects alternate white/black
- display.fillRoundRect(i, i, display.width()-2*i, display.height()-2*i,
- display.height()/4, SSD1306_INVERSE);
- display.display();
- delay(1);
- }
-
- delay(2000);
-}
-
-void testdrawtriangle(void) {
- display.clearDisplay();
-
- for(int16_t i=0; i<max(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, SSD1306_WHITE);
- display.display();
- delay(1);
- }
-
- delay(2000);
-}
-
-void testfilltriangle(void) {
- display.clearDisplay();
-
- for(int16_t i=max(display.width(),display.height())/2; i>0; i-=5) {
- // The INVERSE color is used so triangles alternate white/black
- 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, SSD1306_INVERSE);
- display.display();
- delay(1);
- }
-
- delay(2000);
-}
-
-void testdrawchar(void) {
- display.clearDisplay();
-
- display.setTextSize(1); // Normal 1:1 pixel scale
- display.setTextColor(SSD1306_WHITE); // Draw white text
- display.setCursor(0, 0); // Start at top-left corner
- display.cp437(true); // Use full 256 char 'Code Page 437' font
-
- // Not all the characters will fit on the display. This is normal.
- // Library will draw what it can and the rest will be clipped.
- for(int16_t i=0; i<256; i++) {
- if(i == '\n') display.write(' ');
- else display.write(i);
- }
-
- display.display();
- delay(2000);
-}
-
-void testdrawstyles(void) {
- display.clearDisplay();
-
- display.setTextSize(1); // Normal 1:1 pixel scale
- display.setTextColor(SSD1306_WHITE); // Draw white text
- display.setCursor(0,0); // Start at top-left corner
- display.println(F("Hello, world!"));
-
- display.setTextColor(SSD1306_BLACK, SSD1306_WHITE); // Draw 'inverse' text
- display.println(3.141592);
-
- display.setTextSize(2); // Draw 2X-scale text
- display.setTextColor(SSD1306_WHITE);
- display.print(F("0x")); display.println(0xDEADBEEF, HEX);
-
- display.display();
- delay(2000);
-}
-
-void testscrolltext(void) {
- display.clearDisplay();
-
- display.setTextSize(2); // Draw 2X-scale text
- display.setTextColor(SSD1306_WHITE);
- display.setCursor(10, 0);
- display.println(F("scroll"));
- display.display(); // Show initial text
- delay(100);
-
- // Scroll in various directions, pausing in-between:
- display.startscrollright(0x00, 0x0F);
- delay(2000);
- display.stopscroll();
- delay(1000);
- display.startscrollleft(0x00, 0x0F);
- delay(2000);
- display.stopscroll();
- delay(1000);
- display.startscrolldiagright(0x00, 0x07);
- delay(2000);
- display.startscrolldiagleft(0x00, 0x07);
- delay(2000);
- display.stopscroll();
- delay(1000);
-}
-
-void testdrawbitmap(void) {
+ //check for serial messages
+ if (Serial.available() > 0) {
+ int r = 0;
+ char* bytesRead = malloc(sizeof(char) * 128);
+ //read until null
+ while (1) {
+ int sa = Serial.available();
+ if (sa > 0) {
+ r += Serial.readBytes(bytesRead + r, sa);
+ if (bytesRead[r-1] == '\n') {
+ bytesRead[r-1] = '\0';
+ break;
+ }
+ }
+ delay(50);
+ }
+ handle_serial_msg(bytesRead);
+ free(bytesRead);
+ }
+ write_marquee(marquee);
+ if (marquee->scrolledBy == 0) {
+ delay(1000);
+ }
+ //check if message needs to be scrolled
+ if (marquee->doesScroll) {
+ scroll_marquee(marquee, 2);
+ }
+ delay(1);
+}
+
+//serial messages start with one byte to identify message type
+//messages are null terminated
+void handle_serial_msg(char* bytesRead) {
+ //control messages
+ if (bytesRead[0] == 'c') {
+ display.ssd1306_command(bytesRead[1] == '0' ? SSD1306_DISPLAYOFF : SSD1306_DISPLAYON);
+ }
+ //marquee messages
+ else if (bytesRead[0] == 'm') {
+ *marquee = make_marquee(bytesRead + 1);
+ }
+}
+
+void write_marquee(marquee_t* marquee) {
+ display.clearDisplay();
+ //draw chars
+ //default char size is 5x8, so our char size is 20x32.
+ //therefore, the maximum number of whole characters to be displayed is 6.
+ //iterate over string
+ for (int i = 0; i < marquee->textLength; i++) {
+ //multiply by 21 for 20 character pixels and 1 space pixel
+ int charX = (i * 21) - marquee->scrolledBy;
+ if (charX > -20 && charX < 128) {
+ display.drawChar(charX, 0, marquee->text[i], SSD1306_WHITE, SSD1306_BLACK, 4);
+ }
+ }
+ display.display();
+}
+
+void write_logo() {
display.clearDisplay();
display.drawBitmap(
@@ -330,49 +116,3 @@ void testdrawbitmap(void) {
display.display();
delay(1000);
}
-
-#define XPOS 0 // Indexes into the 'icons' array in function below
-#define YPOS 1
-#define DELTAY 2
-
-void testanimate(const uint8_t *bitmap, uint8_t w, uint8_t h) {
- int8_t f, icons[NUMFLAKES][3];
-
- // Initialize 'snowflake' positions
- for(f=0; f< NUMFLAKES; f++) {
- icons[f][XPOS] = random(1 - LOGO_WIDTH, display.width());
- icons[f][YPOS] = -LOGO_HEIGHT;
- icons[f][DELTAY] = random(1, 6);
- Serial.print(F("x: "));
- Serial.print(icons[f][XPOS], DEC);
- Serial.print(F(" y: "));
- Serial.print(icons[f][YPOS], DEC);
- Serial.print(F(" dy: "));
- Serial.println(icons[f][DELTAY], DEC);
- }
-
- for(;;) { // Loop forever...
- display.clearDisplay(); // Clear the display buffer
-
- // Draw each snowflake:
- for(f=0; f< NUMFLAKES; f++) {
- display.drawBitmap(icons[f][XPOS], icons[f][YPOS], bitmap, w, h, SSD1306_WHITE);
- }
-
- display.display(); // Show the display buffer on the screen
- delay(200); // Pause for 1/10 second
-
- // Then update coordinates of each flake...
- for(f=0; f< NUMFLAKES; f++) {
- icons[f][YPOS] += icons[f][DELTAY];
- // If snowflake is off the bottom of the screen...
- if (icons[f][YPOS] >= display.height()) {
- // Reinitialize to a random position, just off the top
- icons[f][XPOS] = random(1 - LOGO_WIDTH, display.width());
- icons[f][YPOS] = -LOGO_HEIGHT;
- icons[f][DELTAY] = random(1, 6);
- }
- }
- }
-}
-
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