//http://embed.plnkr.co/3VUsekP3jC5xwSIQDVHx/preview
//code write by Moz for YouTube changel LogMaker360, 12-11-2015
//code belongs to this video:
// Pins
// Fill in the pins you used on your own setup.
// WARNING: Make sure you have resistors connected between the rows and the arduino.
#define ROW_1 2//
#define ROW_2 3
#define ROW_3 4
#define ROW_4 5
#define ROW_5 6
#define ROW_6 7
#define ROW_7 8
#define ROW_8 9
#define COL_1 10
#define COL_2 11
#define COL_3 12
#define COL_4 13
#define COL_5 A0
#define COL_6 A1
#define COL_7 A2
#define COL_8 A3
const byte rows[] = {
ROW_1, ROW_2, ROW_3, ROW_4, ROW_5, ROW_6, ROW_7, ROW_8
};
// The display buffer
// It's prefilled with a smiling face (1 = ON, 0 = OFF)
byte smile[] = {B01111110,B10000001,B10100101,B00000000,B00011000,B01000010,B00111100,B00000000};
byte nutral[] = {B11111111,B10000001,B10100101,B10000001,B10000001,B10111101,B10000001,B11111111};
byte angry[] = {B11111111,B10000001,B10100101,B10000001,B00000000,B00111100,B01000010,B00000000};
float timeCount = 0;
void setup() {
// Open serial port
Serial.begin(9600);
// Set all used pins to OUTPUT
// This is very important! If the pins are set to input
// the display will be very dim.
for (byte i = 2; i <= 13; i++)
pinMode(i, OUTPUT);
pinMode(A0, OUTPUT);
pinMode(A1, OUTPUT);
pinMode(A2, OUTPUT);
pinMode(A3, OUTPUT);
}
void loop() {
// This could be rewritten to not use a delay, which would make it appear brighter
delay(5);
timeCount += 1;
if(timeCount < 200) {
drawScreen(nutral);
} else if (timeCount < 230) {
// do nothing
} else if (timeCount < 400) {
drawScreen(smile);
} else if (timeCount < 430) {
// nothing
} else if (timeCount < 600) {
drawScreen(nutral);
} else if (timeCount < 630) {
// nothing
} else if (timeCount < 800) {
drawScreen(angry);
} else if (timeCount < 830) {
// nothing
} else if (timeCount < 1000) {
drawScreen(smile);
} else if (timeCount < 1030) {
// nothing
} else if (timeCount < 1200) {
drawScreen(angry);
} else if (timeCount < 1230) {
// nothing
} else {
// back to the start
timeCount = 0;
}
}
void drawScreen(byte buffer2[]){
// Turn on each row in series
for (byte i = 0; i < 8; i++) {
setColumns(buffer2[i]); // Set columns for this specific row
digitalWrite(rows[i], HIGH);
delay(2); // Set this to 50 or 100 if you want to see the multiplexing effect!
digitalWrite(rows[i], LOW);
}
}
void setColumns(byte b) {
digitalWrite(COL_1, (~b >> 0) & 0x01); // Get the 1st bit: 10000000
digitalWrite(COL_2, (~b >> 1) & 0x01); // Get the 2nd bit: 01000000
digitalWrite(COL_3, (~b >> 2) & 0x01); // Get the 3rd bit: 00100000
digitalWrite(COL_4, (~b >> 3) & 0x01); // Get the 4th bit: 00010000
digitalWrite(COL_5, (~b >> 4) & 0x01); // Get the 5th bit: 00001000
digitalWrite(COL_6, (~b >> 5) & 0x01); // Get the 6th bit: 00000100
digitalWrite(COL_7, (~b >> 6) & 0x01); // Get the 7th bit: 00000010
digitalWrite(COL_8, (~b >> 7) & 0x01); // Get the 8th bit: 00000001
// If the polarity of your matrix is the opposite of mine
// remove all the '~' above.
}
