DIY Programmable Pedal Loop Switcher Build (Part 2)

This is part 2 of a True Bypass 8 Loop Programmable Loop Switcher
that I am building. I have now over come the programming problems and can now have multiple banks of 8 patches.
I am now planning the exact location of all components before I drill the holes required for mounting.
Hope you find this video inspiring!

[massamsdc]

Absolutely inspiring! :)

Great video and well explained. Just the coding part was bit messy and I thought I'd contribute. So, I have prepared the whole thing in little bit more organized .RAR file for download on this link:

[dalepal]

You’ve made some good progress. I look forward to seeing the next steps.

[hiiii]

I'm glad to see your video as I am embarking on a similar project with extremely limited knowledge but an uninformed belief that it can be done and I can do it. Haha, we'll see. Lots of mistakes to be made yet. I hope you are still involved with this, it looks like I'm behind the curve a year or so.
My first question is regarding youtube as I am unable to locate the "description below" and none of the links in the replies are visible.
Good luck and Thanks!

[lucabruno]

I'm in love with this project... Please include the led 7 segment for the bank mode =)

[andrewcampbell]

I'm looking forward to this. I'd like to become a little more keen to coding and begin to venture onward to digitally controlled analog effects or develop some interesting delay units, but I'm aiming to build a similar bypass looper out of wood with programmable presets and momentary switches. Your code will definitely help with that, so thank you!

[ScottHz]

6:39 - switch the LED with a brighter one and see if it is something in the power getting to the LED or just an out of spec LED.

[KeyboardMac]

is it possible to add EDIT & SAVE buttons?

[lablewis]

great project, looking to do similar, could someone pls tell me if the code stays saved when powered down, ie pedal not in use for a period of time

[PaulGrahamGuitarst]

Here is that code. As it would not fit in the description.
/*
Intelligent LOOP SWITCHER for guitar pedal board
by Paul Graham
Note: This sketch is under development and is not complete.

Turns on and off pre-determined relays connected to digital
pin 13, 12, 11, 10, 9, 8, when pressing a pushbutton attached to pin 2, 3 or 4 for diferent configs.


The circuit description:
* LED attached from pins 13 to 8 with 160 Ohm resistor in series to ground
* pushbuttons attached to pin 2 to 4 from +5V
* 5K resistor attached to pins 2 to 4 from ground
*/

// constants won't change. They're used here to
// set pin numbers:
const int button1 = 22; // button 1 input pin
const int button2 = 23; // button 2 input pin
const int button3 = 24; // button 3 input pin
const int button4 = 25; // button 4 input pin
const int loop1 = 13; // loop 1 output pin
const int loop2 = 12; // loop 2 output pin
const int loop3 = 11; // loop 3 output pin
const int loop4 = 10; // loop 4 output pin
const int loop5 = 9; // loop 5 output pin
const int loop6 = 8; // loop 6 output pin
const int loop7 = 30; // loop 7 output pin
const int loop8 = 31; // loop 8 output pin
const int bankin1 = 35; //input for bank led



// variables will change:
int buttonState1 = 0; // variable for reading button1 status
int buttonState2 = 0; // variable for reading button2 status
int buttonState3 = 0; // variable for reading button3 status
int buttonState4 = 0; // variable for reading bank button
int bankread1 = 0;
long lastDebounce = 0;
long debounceDelay = 100;

void setup() {
// initialize the Loop pins as an outputs:
pinMode(loop1, OUTPUT);
pinMode(loop2, OUTPUT);
pinMode(loop3, OUTPUT);
pinMode(loop4, OUTPUT);
pinMode(loop5, OUTPUT);
pinMode(loop6, OUTPUT);
pinMode(loop7, OUTPUT);
pinMode(loop8, OUTPUT);

// initialize the button pins as an inputs:
pinMode(button1, INPUT);
pinMode(button2, INPUT);
pinMode(button3, INPUT);
pinMode(button4, INPUT);
pinMode(bankin1, INPUT);

}

void loop() {
//one button bank switching with delay for debouncing
buttonState4 = digitalRead(button4);

if ((buttonState4 == HIGH)&&(bankread1 == LOW)){
//turn led8 on
digitalWrite(loop7, LOW);
delay(200);
digitalWrite(loop8, HIGH);
delay(200);
}
buttonState4 = digitalRead(button4);
bankread1 = digitalRead(bankin1);

if ((buttonState4 == HIGH) && (bankread1 == HIGH)){
//turn on led7
digitalWrite(loop8, LOW);
delay(200);
digitalWrite (loop7, HIGH);
delay(200);
}

// bank one programming
buttonState1 = digitalRead(button1);
bankread1 = digitalRead (bankin1);

if ((buttonState1 == HIGH) && (bankread1 == LOW)){
// turn LEDs on and off:
digitalWrite(loop1, HIGH);
digitalWrite(loop3, HIGH);
digitalWrite(loop5, HIGH);
digitalWrite(loop2, LOW);
digitalWrite(loop4, LOW);
digitalWrite(loop6, LOW);
}
buttonState2 = digitalRead(button2);
bankread1 = digitalRead (bankin1);
// turn LEDs on and off:
if ((buttonState2 == HIGH) && (bankread1 == LOW)) {
digitalWrite(loop1, LOW);
digitalWrite(loop3, LOW);
digitalWrite(loop5, LOW);
digitalWrite(loop2, HIGH);
digitalWrite(loop4, HIGH);
digitalWrite(loop6, HIGH);
}
buttonState3 = digitalRead(button3);
bankread1 = digitalRead (bankin1);
// turn LEDs on and off:
if ((buttonState3 == HIGH) && (bankread1 == LOW)) {
digitalWrite(loop1, HIGH);
digitalWrite(loop2, HIGH);
digitalWrite(loop3, LOW);
digitalWrite(loop4, LOW);
digitalWrite(loop5, HIGH);
digitalWrite(loop6, HIGH);
}

//bank two programming
buttonState1 = digitalRead(button1);
bankread1 = digitalRead (bankin1);

if ((buttonState1 == HIGH) && (bankread1 == HIGH)){
// turn LEDs on and off:
digitalWrite(loop1, LOW);
digitalWrite(loop3, HIGH);
digitalWrite(loop5, HIGH);
digitalWrite(loop2, LOW);
digitalWrite(loop4, HIGH);
digitalWrite(loop6, LOW);
}
buttonState2 = digitalRead(button2);
bankread1 = digitalRead (bankin1);
// turn LEDs on and off:
if ((buttonState2 == HIGH) && (bankread1 == HIGH)) {
digitalWrite(loop1, HIGH);
digitalWrite(loop3, LOW);
digitalWrite(loop5, LOW);
digitalWrite(loop2, HIGH);
digitalWrite(loop4, HIGH);
digitalWrite(loop6, LOW);
}
buttonState3 = digitalRead(button3);
bankread1 = digitalRead (bankin1);
// turn LEDs on and off:
if ((buttonState3 == HIGH) && (bankread1 == HIGH)) {
digitalWrite(loop1, HIGH);
digitalWrite(loop2, HIGH);
digitalWrite(loop3, HIGH);
digitalWrite(loop4, HIGH);
digitalWrite(loop5, HIGH);
digitalWrite(loop6, HIGH);
} }