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mmASCII_8x8LED.ino
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190 lines (182 loc) · 10 KB
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/*
Show ASCII leters on LED matrix 8x8
Hardware required :
* LED matrix 8x8
* 8x resistor 330
* Arduino UNO
v 0.1.0 - Martin Mikala, May 1, 2016
Part of code from Arduino book - Průvodce světem Arduina, http://arduino.cz/
ASCII font 5x7 from https://www.ccsinfo.com/forum/viewtopic.php?p=34689
*/
byte columns[] = {2,3,4,5,6,7,8,9}; //pins for columns 1-8
byte rows[] = {A5,A4,A3,A2,A1,A0,10,11}; //pins for rows 1-8
boolean rowon = LOW; // row bit on/off value
boolean rowoff = HIGH;
boolean colon = HIGH; // column bit on/off value
boolean coloff = LOW;
// ASCII font array
// rows -> {1,2,3,4,5,6,7,8}
// column 0x00 -> 0xFF
// 128 characters
byte font[128][8] =
{{0,0,0,0,0,0,0,0}, //0x00
{0,0,0,0,0,0,0,0}, //0x01
{0,0,0,0,0,0,0,0}, //0x02
{0,0,0,0,0,0,0,0}, //0x03
{0,0,0,0,0,0,0,0}, //0x04
{0,0,0,0,0,0,0,0}, //0x05
{0,0,0,0,0,0,0,0}, //0x06
{0,0,0,0,0,0,0,0}, //0x07
{0,0,0,0,0,0,0,0}, //0x08
{0,0,0,0,0,0,0,0}, //0x09
{0,0,0,0,0,0,0,0}, //0x0A
{0,0,0,0,0,0,0,0}, //0x0B
{0,0,0,0,0,0,0,0}, //0x0C
{0,0,0,0,0,0,0,0}, //0x0D
{0,0,0,0,0,0,0,0}, //0x0E
{0,0,0,0,0,0,0,0}, //0x0F
{0,0,0,0,0,0,0,0}, //0x10
{0,0,0,0,0,0,0,0}, //0x11
{0,0,0,0,0,0,0,0}, //0x12
{0,0,0,0,0,0,0,0}, //0x13
{0,0,0,0,0,0,0,0}, //0x14
{0,0,0,0,0,0,0,0}, //0x15
{0,0,0,0,0,0,0,0}, //0x16
{0,0,0,0,0,0,0,0}, //0x17
{0,0,0,0,0,0,0,0}, //0x18
{0,0,0,0,0,0,0,0}, //0x19
{0,0,0,0,0,0,0,0}, //0x1A
{0,0,0,0,0,0,0,0}, //0x1B
{0,0,0,0,0,0,0,0}, //0x1C
{0,0,0,0,0,0,0,0}, //0x1D
{0,0,0,0,0,0,0,0}, //0x1E
{0,0,0,0,0,0,0,0}, //0x1F
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x20, Space
{0x04, 0x04, 0x04, 0x04, 0x04, 0x00, 0x04, 0x00}, // 0x21, !
{0x09, 0x09, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x22, "
{0x0a, 0x0a, 0x1f, 0x0a, 0x1f, 0x0a, 0x0a, 0x00}, // 0x23, #
{0x04, 0x0f, 0x14, 0x0e, 0x05, 0x1e, 0x04, 0x00}, // 0x24, $
{0x19, 0x19, 0x02, 0x04, 0x08, 0x13, 0x13, 0x00}, // 0x25, %
{0x04, 0x0a, 0x0a, 0x0a, 0x15, 0x12, 0x0d, 0x00}, // 0x26, &
{0x04, 0x04, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x27, '
{0x02, 0x04, 0x08, 0x08, 0x08, 0x04, 0x02, 0x00}, // 0x28, (
{0x08, 0x04, 0x02, 0x02, 0x02, 0x04, 0x08, 0x00}, // 0x29, )
{0x04, 0x15, 0x0e, 0x1f, 0x0e, 0x15, 0x04, 0x00}, // 0x2a, *
{0x00, 0x04, 0x04, 0x1f, 0x04, 0x04, 0x00, 0x00}, // 0x2b, +
{0x00, 0x00, 0x00, 0x00, 0x04, 0x04, 0x08, 0x00}, // 0x2c, ,
{0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, 0x00, 0x00}, // 0x2d, -
{0x00, 0x00, 0x00, 0x00, 0x00, 0x0c, 0x0c, 0x00}, // 0x2e, .
{0x01, 0x01, 0x02, 0x04, 0x08, 0x10, 0x10, 0x00}, // 0x2f, /
{0x0e, 0x11, 0x13, 0x15, 0x19, 0x11, 0x0e, 0x00}, // 0x30, 0
{0x04, 0x0c, 0x04, 0x04, 0x04, 0x04, 0x0e, 0x00}, // 0x31, 1
{0x0e, 0x11, 0x01, 0x02, 0x04, 0x08, 0x1f, 0x00}, // 0x32, 2
{0x0e, 0x11, 0x01, 0x06, 0x01, 0x11, 0x0e, 0x00}, // 0x33, 3
{0x02, 0x06, 0x0a, 0x12, 0x1f, 0x02, 0x02, 0x00}, // 0x34, 4
{0x1f, 0x10, 0x1e, 0x01, 0x01, 0x11, 0x0e, 0x00}, // 0x35, 5
{0x06, 0x08, 0x10, 0x1e, 0x11, 0x11, 0x0e, 0x00}, // 0x36, 6
{0x1f, 0x01, 0x02, 0x04, 0x08, 0x08, 0x08, 0x00}, // 0x37, 7
{0x0e, 0x11, 0x11, 0x0e, 0x11, 0x11, 0x0e, 0x00}, // 0x38, 8
{0x0e, 0x11, 0x11, 0x0f, 0x01, 0x02, 0x0c, 0x00}, // 0x39, 9
{0x00, 0x0c, 0x0c, 0x00, 0x0c, 0x0c, 0x00, 0x00}, // 0x3a, :
{0x00, 0x0c, 0x0c, 0x00, 0x0c, 0x04, 0x08, 0x00}, // 0x3b, ;
{0x02, 0x04, 0x08, 0x10, 0x08, 0x04, 0x02, 0x00}, // 0x3c, <
{0x00, 0x00, 0x1f, 0x00, 0x1f, 0x00, 0x00, 0x00}, // 0x3d, =
{0x08, 0x04, 0x02, 0x01, 0x02, 0x04, 0x08, 0x00}, // 0x3e, >
{0x0e, 0x11, 0x01, 0x02, 0x04, 0x00, 0x04, 0x00}, // 0x3f, ?
{0x0e, 0x11, 0x17, 0x15, 0x17, 0x10, 0x0f, 0x00}, // 0x40, @
{0x04, 0x0a, 0x11, 0x11, 0x1f, 0x11, 0x11, 0x00}, // 0x41, A
{0x1e, 0x11, 0x11, 0x1e, 0x11, 0x11, 0x1e, 0x00}, // 0x42, B
{0x0e, 0x11, 0x10, 0x10, 0x10, 0x11, 0x0e, 0x00}, // 0x43, C
{0x1e, 0x09, 0x09, 0x09, 0x09, 0x09, 0x1e, 0x00}, // 0x44, D
{0x1f, 0x10, 0x10, 0x1c, 0x10, 0x10, 0x1f, 0x00}, // 0x45, E
{0x1f, 0x10, 0x10, 0x1f, 0x10, 0x10, 0x10, 0x00}, // 0x46, F
{0x0e, 0x11, 0x10, 0x10, 0x13, 0x11, 0x0f, 0x00}, // 0x37, G
{0x11, 0x11, 0x11, 0x1f, 0x11, 0x11, 0x11, 0x00}, // 0x48, H
{0x0e, 0x04, 0x04, 0x04, 0x04, 0x04, 0x0e, 0x00}, // 0x49, I
{0x1f, 0x02, 0x02, 0x02, 0x02, 0x12, 0x0c, 0x00}, // 0x4a, J
{0x11, 0x12, 0x14, 0x18, 0x14, 0x12, 0x11, 0x00}, // 0x4b, K
{0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x1f, 0x00}, // 0x4c, L
{0x11, 0x1b, 0x15, 0x11, 0x11, 0x11, 0x11, 0x00}, // 0x4d, M
{0x11, 0x11, 0x19, 0x15, 0x13, 0x11, 0x11, 0x00}, // 0x4e, N
{0x0e, 0x11, 0x11, 0x11, 0x11, 0x11, 0x0e, 0x00}, // 0x4f, O
{0x1e, 0x11, 0x11, 0x1e, 0x10, 0x10, 0x10, 0x00}, // 0x50, P
{0x0e, 0x11, 0x11, 0x11, 0x15, 0x12, 0x0d, 0x00}, // 0x51, Q
{0x1e, 0x11, 0x11, 0x1e, 0x14, 0x12, 0x11, 0x00}, // 0x52, R
{0x0e, 0x11, 0x10, 0x0e, 0x01, 0x11, 0x0e, 0x00}, // 0x53, S
{0x1f, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x00}, // 0x54, T
{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x0e, 0x00}, // 0x55, U
{0x11, 0x11, 0x11, 0x11, 0x11, 0x0a, 0x04, 0x00}, // 0x56, V
{0x11, 0x11, 0x11, 0x15, 0x15, 0x1b, 0x11, 0x00}, // 0x57, W
{0x11, 0x11, 0x0a, 0x04, 0x0a, 0x11, 0x11, 0x00}, // 0x58, X
{0x11, 0x11, 0x0a, 0x04, 0x04, 0x04, 0x04, 0x00}, // 0x59, Y
{0x1f, 0x01, 0x02, 0x04, 0x08, 0x10, 0x1f, 0x00}, // 0x5a, Z
{0x0e, 0x08, 0x08, 0x08, 0x08, 0x08, 0x0e, 0x00}, // 0x5b, [
{0x10, 0x10, 0x08, 0x04, 0x02, 0x01, 0x01, 0x00}, // 0x5c, \
{0x0e, 0x02, 0x02, 0x02, 0x02, 0x02, 0x0e, 0x00}, // 0x5d, ]
{0x04, 0x0a, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x5e, ^
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x00}, // 0x5f, _
{0x04, 0x04, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x60, `
{0x00, 0x0e, 0x01, 0x0d, 0x13, 0x13, 0x0d, 0x00}, // 0x61, a
{0x10, 0x10, 0x10, 0x1c, 0x12, 0x12, 0x1c, 0x00}, // 0x62, b
{0x00, 0x00, 0x00, 0x0e, 0x10, 0x10, 0x0e, 0x00}, // 0x63, c
{0x01, 0x01, 0x01, 0x07, 0x09, 0x09, 0x07, 0x00}, // 0x64, d
{0x00, 0x00, 0x0e, 0x11, 0x1f, 0x10, 0x0f, 0x00}, // 0x65, e
{0x06, 0x09, 0x08, 0x1c, 0x08, 0x08, 0x08, 0x00}, // 0x66, f
{0x0e, 0x11, 0x13, 0x0d, 0x01, 0x01, 0x0e, 0x00}, // 0x67, g
{0x10, 0x10, 0x10, 0x16, 0x19, 0x11, 0x11, 0x00}, // 0x68, h
{0x00, 0x04, 0x00, 0x0c, 0x04, 0x04, 0x0e, 0x00}, // 0x69, i
{0x02, 0x00, 0x06, 0x02, 0x02, 0x12, 0x0c, 0x00}, // 0x6a, j
{0x10, 0x10, 0x12, 0x14, 0x18, 0x14, 0x12, 0x00}, // 0x6b, k
{0x0c, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x00}, // 0x6c, l
{0x00, 0x00, 0x0a, 0x15, 0x15, 0x11, 0x11, 0x00}, // 0x6d, m
{0x00, 0x00, 0x16, 0x19, 0x11, 0x11, 0x11, 0x00}, // 0x6e, n
{0x00, 0x00, 0x0e, 0x11, 0x11, 0x11, 0x0e, 0x00}, // 0x6f, o
{0x00, 0x1c, 0x12, 0x12, 0x1c, 0x10, 0x10, 0x00}, // 0x70, p
{0x00, 0x07, 0x09, 0x09, 0x07, 0x01, 0x01, 0x00}, // 0x71, q
{0x00, 0x00, 0x16, 0x19, 0x10, 0x10, 0x10, 0x00}, // 0x72, r
{0x00, 0x00, 0x0f, 0x10, 0x0e, 0x01, 0x1e, 0x00}, // 0x73, s
{0x08, 0x08, 0x1c, 0x08, 0x08, 0x09, 0x06, 0x00}, // 0x74, t
{0x00, 0x00, 0x11, 0x11, 0x11, 0x13, 0x0d, 0x00}, // 0x75, u
{0x00, 0x00, 0x11, 0x11, 0x11, 0x0a, 0x04, 0x00}, // 0x76, v
{0x00, 0x00, 0x11, 0x11, 0x15, 0x15, 0x0a, 0x00}, // 0x77, w
{0x00, 0x00, 0x11, 0x0a, 0x04, 0x0a, 0x11, 0x00}, // 0x78, x
{0x00, 0x11, 0x11, 0x0f, 0x01, 0x11, 0x0e, 0x00}, // 0x79, y
{0x00, 0x00, 0x1f, 0x02, 0x04, 0x08, 0x1f, 0x00}, // 0x7a, z
{0x06, 0x08, 0x08, 0x10, 0x08, 0x08, 0x06, 0x00}, // 0x7b, {
{0x04, 0x04, 0x04, 0x00, 0x04, 0x04, 0x04, 0x00}, // 0x7c, |
{0x0c, 0x02, 0x02, 0x01, 0x02, 0x02, 0x0c, 0x00}, // 0x7d, }
{0x08, 0x15, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00}, // 0x7e, ~
{0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x00} // 0x7f, DEL
};
void setup(){
for(int i = 0; i < 8; i++){
//set pins
pinMode(columns[i], OUTPUT);
pinMode(rows[i], OUTPUT);
//turn off LEDs
digitalWrite(columns[i], coloff);
digitalWrite(rows[i], rowoff);
}
}
void loop(){
byte revbit[8] = {7,6,5,4,3,2,1,0}; // reverse order for bits
for(int c = 32;c < 128; c++) { // show characters 32 to 127
for(int d = 0; d < 100; d++) { // redraw char 100 times
for(int i = 0; i < 8; i++){ // loop for each column
digitalWrite(columns[i], colon); // ON col i
byte col = font[c][revbit[i]] << 3; //read bits for row, shift to left by 3
for(int j = 0; j < 8; j++){ // loop for row bits
if(bitRead(col,j) == 1){ //if bit j is 1, turn on LED
digitalWrite(rows[j], rowon);
}
}
delay(1); //waiting, lighting short time
for(int j = 0; j < 8; j++){ //OFF all rows
digitalWrite(rows[j], rowoff);
}
digitalWrite(columns[i], coloff); // OFF column
}
}
delay(200); // wait for next character
}
}