Created
June 19, 2014 20:07
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| int row[8] = {7, 9, 6, 8, 2, 5, 3, 4}; | |
| int col[8] = {15, 10, 11, 13, 12, 14, 16, 17}; | |
| int accl_x = A5; | |
| int accl_y = A4; | |
| // the setup routine runs once when you press reset: | |
| void setup() { | |
| // open a serial port | |
| Serial.begin(9600); | |
| pinMode(accl_x, INPUT); | |
| pinMode(accl_y, INPUT); | |
| // initialize the row and column pins as outputs, set rows low, set columns high | |
| for (int i = 0; i < 8; i++) { | |
| pinMode (row[i], OUTPUT); | |
| digitalWrite(row[i], LOW); | |
| pinMode (col[i], OUTPUT); | |
| digitalWrite(col[i], HIGH); | |
| } | |
| // test all leds | |
| for (int r=0; r<8; r++) { | |
| if (r > 0) { | |
| digitalWrite(row[r-1], LOW); | |
| } | |
| else { | |
| digitalWrite(row[7], LOW); | |
| } | |
| digitalWrite(row[r], HIGH); | |
| for (int c = 0; c<8; c++) { | |
| if (c > 0) { | |
| digitalWrite(col[c-1], HIGH); | |
| } | |
| else { | |
| digitalWrite(col[7], HIGH); | |
| } | |
| digitalWrite(col[c], LOW); | |
| delay(20); | |
| } | |
| } | |
| } | |
| // the loop routine runs over and over again forever: | |
| void loop() { | |
| int x = analogRead(accl_x); | |
| int x_mapped = map(x, 267, 400, 0, 8); | |
| int y = analogRead(accl_y); | |
| int y_mapped = map(y, 267, 400, 0, 8); | |
| Serial.print("x: "); | |
| Serial.print(x); | |
| Serial.print(" => "); | |
| Serial.println(x_mapped); | |
| Serial.print("y: "); | |
| Serial.print(y); | |
| Serial.print(" => "); | |
| Serial.println(y_mapped); | |
| Serial.println(); | |
| for (int r=0; r<8; r++) { | |
| digitalWrite(row[r], LOW); | |
| for (int c = 0; c<8; c++) { | |
| digitalWrite(col[c], HIGH); | |
| } | |
| } | |
| digitalWrite(col[7-x_mapped], LOW); | |
| if ( 7-x_mapped+1 < 8 ) | |
| digitalWrite(col[7-x_mapped+1], LOW); | |
| digitalWrite(row[y_mapped], HIGH); | |
| if ( y_mapped+1 < 8 ) | |
| digitalWrite(row[y_mapped+1], HIGH); | |
| delay(100); | |
| } |
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