Hello everyone!
I just want to control a motor with button matrix.
I tried to edit the original code.
Its compiled but doesnt working.
Im really new in Arduino programming. So if someone helps me i really appreciate it.
/****************************************************
4x4 keyboard matrix
By Chris Rouse Oct. 2015
Connect:
Row 1 to Arduino pin 2
Row 2 to Arduino pin 3
Row 3 to Arduino pin 4
Row 4 to Arduino pin 5
Column A to Arduino pin 8
Column B to Arduino pin 9
Column C to Arduino pin 10
Column D to Arduino pin 11
Key identification:
(with connector at the top)
0 1 2 3
4 5 6 7
8 9 10 11
12 13 14 15
Connector:
Rows Columns
X X X X X X X X
1 2 3 4 A B C D
(Rows link keys from left to right,
columns link keys from top to bottom)
****************************************************/
int rowCounter =0; // row counter
int columnCounter =0; // column counter
int foundColumn = 0;
boolean foundCol = false;
int keyValue = 0;
int noKey = 0;
boolean readKey = false;
int debounce = 300; // set this to the lowest value that gives the best result
const int row1 = 2;
const int row2 = 3;
const int row3 = 4;
const int row4 = 5;
const int colA = 8;
const int colB = 9;
const int colC = 10;
const int colD = 11;
const int ledPin = 12; // onboard LED
const int ledPin1 = 7;
const int ledPin2 = 6;
const int motorPin = 10;
void setup(){
//motor
//sajt
Serial.begin(9600);
pinMode(row1, OUTPUT);
pinMode(row2, OUTPUT);
pinMode(row3, OUTPUT);
pinMode(row4, OUTPUT);
pinMode(colA, INPUT_PULLUP);
pinMode(colB, INPUT_PULLUP);
pinMode(colC, INPUT_PULLUP);
pinMode(colD, INPUT_PULLUP);
//
pinMode(ledPin, OUTPUT);
digitalWrite(ledPin, LOW); // turn LED off
pinMode(ledPin1, OUTPUT);
digitalWrite(ledPin1, LOW);
pinMode(ledPin2, OUTPUT);
digitalWrite(ledPin2, LOW);
pinMode(motorPin, OUTPUT);
}
void loop(){
if(noKey == 16){ // no keys were pressed
readKey = true; // keyboard is ready to accept a new keypress
}
noKey = 0;
for(rowCounter=row1; rowCounter<(row4 +1); rowCounter++){
scanRow(); // switch on one row at a time
for(columnCounter = colA; columnCounter <colD +1; columnCounter++){
readColumn(); // read the switch pressed
if (foundCol== true){
keyValue =(rowCounter-row1) +4*(columnCounter - colA);
}
}
}
if(readKey==true && noKey == 15){ // a key has been pressed
Serial.println(keyValue); // used for debug
if (keyValue == 0){
digitalWrite(ledPin, !digitalRead(ledPin)); // toggles LED ON/OFF
digitalWrite(ledPin1, !digitalRead(ledPin1));
digitalWrite(ledPin2, !digitalRead(ledPin2));
}
else{
digitalWrite(ledPin, LOW);
digitalWrite(ledPin1, LOW);
digitalWrite(ledPin2, LOW);
}
if (keyValue == 1){
digitalWrite(motorPin, !digitalRead(motorPin));
}
else{
digitalWrite(motorPin, LOW);
}
//motor
/********************************************************
// call to part of the sketch that will use the key number
*/
//*******************************************************
readKey = false; // rest the flag
delay(debounce); // debounce
}
}
void scanRow(){
for(int j =row1; j < (row4 +1); j++){
digitalWrite(j, HIGH);
}
digitalWrite(rowCounter , LOW); // switch on one row
}
void readColumn(){
foundColumn = digitalRead(columnCounter);
if(foundColumn == 0){
foundCol = true;
}
else{
foundCol=false;
noKey=noKey +1; // counter for number of empty columns
}
This code supposed to make the leds light and start the motor when the button is pressed and with the same button stop it.
The leds are working with the code.
The code does something, but you failed to tell us what it does.
You expect the code to do something, but you failed to tell us what you expect it to do.
There is a keypad library. Why aren't you using it?
I
can't
even
begin
to
read
your
code
with
NO
indenting.
Use Tools + Auto Format to properly indent your code.
So the motor is working with a simple code. Whats 100% working.
The leds are working when i pushed the button.
Just the motor dont want to start when i pushing the button.
Any idea?
I think here i need to select which button need to make the motor start.
btw. Its nevermind for me which button make the motor start. I think i know how to change the buttons.
i just need to got this work somehow.
