control the movement of LED with rotary encoder - arduino

Question

I have 6 LED's in a row connected to an arduino uno and want to use the rotary encoder to control the movement. So far, I've have created a program that outputs the signals from the rotary encoder to the serial monitor, but I don't know how I should turn those signals into an signal for the LED's. My idea was to use the connect a certain distance of LED's (42 for each LED) and use large steps (like 1 turn of the Rotary Encoder (RE) is 5ish), but I don't know how I should go about that
example:
1 is on, 0 is off
LED start [ 0, 0, 0, 0, 0, 1 ]
turn RE left twice [ 0, 0, 0, 1, 0, 0 ]
turn RE right once [ 0, 0, 0, 0, 1, 0 ]
My hardware design:
(as the note says, I have a 5 pin Encoder, only a six pin was available)
My source.ino
#define AAN LOW
#define UIT HIGH
int counter = 128;
unsigned long RealTime;
unsigned long CyclicTime;
const int pin_A = 2;
const int pin_B = 3;
const int SW = 4;
unsigned char encoder_A;
unsigned char encoder_B;
unsigned char encoder_A_prev=0;
void setup() {
pinMode(pin_A, INPUT_PULLUP);
pinMode(pin_B, INPUT_PULLUP);
pinMode(SW, INPUT_PULLUP);
Serial.begin(9600);
RealTime = millis();
CyclicTime = RealTime;
}
void loop() {
RealTime = millis();
if(RealTime >= (CyclicTime + 5)) {
encoder_A = digitalRead(pin_A);
encoder_B = digitalRead(pin_B);
if(!encoder_A && encoder_A_prev) {
if(encoder_B) {
counter++;
} else {
counter--;
}
}
}
if (counter == 128) {
digitalWrite(8, UIT);
digitalWrite(9, UIT);
digitalWrite(10, UIT);
digitalWrite(11, UIT);
digitalWrite(12, UIT);
digitalWrite(13, AAN);
}
if (counter > 85) {
digitalWrite(8, UIT);
digitalWrite(9, UIT);
digitalWrite(10, UIT);
digitalWrite(11, UIT);
digitalWrite(12, AAN);
digitalWrite(13, UIT);
}
if (counter > 127, 5) {
digitalWrite(8, UIT);
digitalWrite(9, UIT);
digitalWrite(10, UIT);
digitalWrite(11, AAN);
digitalWrite(12, UIT);
digitalWrite(13, AAN);
}
if (counter > 170) {
digitalWrite(8, UIT);
digitalWrite(9, UIT);
digitalWrite(10, AAN);
digitalWrite(11, UIT);
digitalWrite(12, UIT);
digitalWrite(13, UIT);
}
if (counter > 212, 5) {
digitalWrite(8, UIT);
digitalWrite(9, AAN);
digitalWrite(10, UIT);
digitalWrite(11, UIT);
digitalWrite(12, UIT);
digitalWrite(13, UIT);
}
if (counter > 255) {
digitalWrite(8, AAN);
digitalWrite(9, UIT);
digitalWrite(10, UIT);
digitalWrite(11, UIT);
digitalWrite(12, UIT);
digitalWrite(13, UIT);
}
encoder_A_prev = encoder_A;
if (!digitalRead(SW)) {
counter = 128;
}
Serial.println(counter);
CyclicTime = RealTime;
}
The issue with this code is that somehow none of the LED's are working

Answer 1

Not sure if I understand your goal properly: Do you want to "move" a lit LED in one direction or the other, depending on the direction of your encoder?
And roll over at the ends of your LED row?
Like this:
const byte leds[] {13, 12, 11, 10, 9, 8 };
void setup() {
// ...
for (const byte & led:leds) pinMode(led, OUTPUT);
digitalWrite(led[0], HIGH);
;
void loop() {
// ...
if(!encoder_A && encoder_A_prev) {
if(encoder_B) {
up();
} else {
dn();
}
encoder_A_prev = encoder_A;
}
byte status = 1; // 1 .. 6
void up () {
status++;
if (status > 6) status = 1;
setLED(status);
}
void dn () {
status--;
if (status == 0) status = 6;
setLED(status);
}
void setLED(byte status) {
static byte oldstatus=1;
if (status != oldStatus) {
digitalWrite(leds[oldstatus-1],LOW);
digitalWrite(leds[status-1], HIGH);
oldstatus = status;
}
}
// ... = add the corresponding parts of your own sketch