ikkeiplexing shield switch input

ikkeiplexing shield にはゲームのようなアプリが作れるようにスイッチを左右に８個付けましたが、
端子の追加は不要です。

簡単な表示とスイッチ入力を行うサンプルスケッチを作ってみました。

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/*
 ikkeiplexing ( Charlieplexing by ikkei )
 Use dual 8x8 dot matrix LED
 Testing of switch inputs
 edited by ikkei 2010.06.23
*/

#include <MsTimer2.h>

#define A1 6
#define A2 10
#define A3 17
#define A4 2
#define A5 14
#define A6 3
#define A7 9
#define A8 5
#define K1 1
#define K2 4
#define K3 15
#define K4 7
#define K5 16
#define K6 8
#define K7 11
#define K8 12
#define AX 4
#define AY 5

const byte SWcom1 = A1;
const byte SW1 = A5;
const byte SW2 = A6;
const byte SW3 = A7;
const byte SW4 = A8;
const byte SWcom2 = A2;
const byte SW5 = A5;
const byte SW6 = A6;
const byte SW7 = A7;
const byte SW8 = A8;

const byte LINE[ 16 ][ 9 ] = { 
{ K1, A1, A2, A3, A4, A5, A6, A7, A8 },
{ K2, A1, A2, A3, A4, A5, A6, A7, A8 },
{ K3, A1, A2, A3, A4, A5, A6, A7, A8 },
{ K4, A1, A2, A3, A4, A5, A6, A7, A8 },
{ K5, A1, A2, A3, A4, A5, A6, A7, A8 },
{ K6, A1, A2, A3, A4, A5, A6, A7, A8 },
{ K7, A1, A2, A3, A4, A5, A6, A7, A8 },
{ K8, A1, A2, A3, A4, A5, A6, A7, A8 },
{ A1, K1, K2, K3, K4, K5, K6, K7, K8 },
{ A2, K1, K2, K3, K4, K5, K6, K7, K8 },
{ A3, K1, K2, K3, K4, K5, K6, K7, K8 },
{ A4, K1, K2, K3, K4, K5, K6, K7, K8 },
{ A5, K1, K2, K3, K4, K5, K6, K7, K8 },
{ A6, K1, K2, K3, K4, K5, K6, K7, K8 },
{ A7, K1, K2, K3, K4, K5, K6, K7, K8 },
{ A8, K1, K2, K3, K4, K5, K6, K7, K8 }};

// 2-dimensional array of pixels:
byte pixels[16][8];  

byte count;
byte i;
byte common;
byte SW_data1;
byte SW_data2;
byte SW_data3;
byte SW_data4;
byte SW_data5;
byte SW_data6;
byte SW_data7;
byte SW_data8;

// all output Hi-Z
void alloff( void ){
 for ( i=0; i < 16; i++){
   pinMode( LINE[ i ][ 0 ], INPUT );
 }
}

// LED output control by Charlieplexing
void LED_digit( void ){
 alloff();
 common = LINE[ count ][ 0 ];
 pinMode( common , OUTPUT );  
 digitalWrite( common , LOW );  // common cathode LOW output

 if ( common == SWcom1 ){ // input left 4 switches
   digitalWrite(SW1, HIGH); // Pull Up resistor ON
   digitalWrite(SW2, HIGH);
   digitalWrite(SW3, HIGH);
   digitalWrite(SW4, HIGH);
   SW_data1 = digitalRead(SW1) ^ 0x01; // switch on L
   SW_data2 = digitalRead(SW2) ^ 0x01;
   SW_data3 = digitalRead(SW3) ^ 0x01;
   SW_data4 = digitalRead(SW4) ^ 0x01;
 }else if ( common == SWcom2 ){ // input right 4 switches
   digitalWrite(SW5, HIGH); // Pull Up resistor ON
   digitalWrite(SW6, HIGH);
   digitalWrite(SW7, HIGH);
   digitalWrite(SW8, HIGH);
   SW_data5 = digitalRead(SW5) ^ 0x01; // switch on L
   SW_data6 = digitalRead(SW6) ^ 0x01;
   SW_data7 = digitalRead(SW7) ^ 0x01;
   SW_data8 = digitalRead(SW8) ^ 0x01;
 }
 // 1 line output
 for ( i=0; i < 8; i++){
   if ( pixels[ count ][i] ){
     pinMode( LINE[ count ][ 8-i ], OUTPUT);
     digitalWrite( LINE[ count ][ 8-i ], HIGH);  // turn on LED anode HIGH output
   }
 }
 count++;
 if ( count > 15 ){
   count = 0;
   pixels[ 4][7] = SW_data1;  
   pixels[ 1][4] = SW_data2; 
   pixels[ 7][4] = SW_data3; 
   pixels[ 4][1] = SW_data4; 
   pixels[12][7] = SW_data5; 
   pixels[ 9][4] = SW_data6; 
   pixels[15][4] = SW_data7;
   pixels[12][1] = SW_data8; 
 }
}

void setup(){
 alloff();
 count = 0;
 MsTimer2::set( 1, LED_digit); // 1ms interrupt setting
 MsTimer2::start();
 pixels[ 4][4] = 1;
 pixels[ 5][4] = 1;
 pixels[ 3][4] = 1;
 pixels[ 4][5] = 1;
 pixels[ 4][3] = 1;
 pixels[12][4] = 1;
 pixels[13][4] = 1;
 pixels[11][4] = 1;
 pixels[12][5] = 1;
 pixels[12][3] = 1;
}

void loop(){
}

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これを動作させた動画です。

testing of ikkeiplexing shield switch input

ikkeiplexing shield 動画

ikkeiplexing shield の動画です。

ikkeiplexing shield (Charlieplexing by ikkei)