Code: Select all
byte cols[] = {0,1,2,3,4,5,6,7};
const int colCount = sizeof(cols)/sizeof(cols[0]);
byte rows[] = {8,9,10,11,12,13,14,15,16,17,18,19,20};
const int rowCount = sizeof(rows)/sizeof(rows[0]);
void setup() {
for (int x=0; x<colCount; x++) {
pinMode(cols[x], INPUT_PULLUP);
}
for(int x=0; x<rowCount; x++) {
pinMode(rows[x], INPUT);
}
Serial.begin(115200);
}
void loop() {
// Iterate rows
for (int rowIndex=0; rowIndex < rowCount; rowIndex++) {
// Current row
byte curRow = rows[rowIndex];
pinMode(curRow, OUTPUT);
digitalWrite(curRow, LOW);
// Iterate columns
for (int colIndex=0; colIndex < colCount; colIndex++) {
// Current col
byte curCol = cols[colIndex];
if(digitalRead(curCol) == LOW) {
// Hit!
Serial.print("Row: ");
Serial.print(rowIndex);
Serial.print(" | Col: ");
Serial.println(colIndex);
}
}
pinMode(curRow, INPUT);
}
}
but really the problem I was having was that I was trying to test the LED with a simple sketch but I didn't set the pin mode to output (duhhhh) 
Wire confetti!!!!
I'm currently gluing one so I think I'm okay but thanks for the offer.//gainsborough wrote: ↑I have an AT101 caps lock that doesn't fit on the omnikey I just built. Want me to send it to you?
edit: or a video writer caps lock would work as well!
I'm not actually sure, I'll check with the guy I bought them off of.Engicoder wrote: ↑Nice job. The caps fit the board..a little bit of everything. Which typewriter did the alphas come from?