I'm completely new to Arduino and I've been reading a lot but I'm starting to get stuck. I am trying to program an UNO to control an el wire sequencer. I also have an analog keypad and sound detector to control multiple actions. The goal is to turn it on and have all channels light up. Then, with the push of a button, switch between other modes. i.e. flashing, sound reactive, back to all on, etc. I got as far as turning on and changing to another mode. I couldn't figure out how to switch back. That is the first code. The second code is the start of another approach but it's not functional. I could use some guidance before I get discouraged. const int Key_pin = A0; const int Gate_pin = A1; const int Envl_pin = A2; const int Audio_pin = A3; int Key_read; int Previous_Key; int Value; String Key_id; String Vol_id; void setup() { Serial.begin(9600); pinMode(2, OUTPUT); // channel A pinMode(3, OUTPUT); // channel B pinMode(4, OUTPUT); // channel C pinMode(5, OUTPUT); // channel D pinMode(6, OUTPUT); // channel E pinMode(7, OUTPUT); // channel F pinMode(8, OUTPUT); // channel G pinMode(9, OUTPUT); // channel H pinMode(10, OUTPUT); // Escudo Status LED pinMode(13, OUTPUT); // Arduino Status LED pinMode(A0, INPUT); // Button pinMode(A1, INPUT); // Gate pinMode(A2, INPUT); // Envelope pinMode(A3, INPUT); // Audio } void loop() { Value = analogRead(Envl_pin); if (not Value = 10 and Value = 20 and Value = 30) Vol_id = "High"; if (Value >= 10) { Serial.print(Value); Serial.println(" - The volume is " + Vol_id); delay(100); } { Key_read = analogRead(Key_pin); if (not Key_read 300 and Key_read 400 and Key_read 450 and Key_read 500 and Key_read < 549) Key_id = "Red"; if (Key_read != Previous_Key and Key_read < 600) { Serial.print(Key_read); Serial.println(" - " + Key_id + " key pressed"); Previous_Key = Key_read; delay(1000); } { digitalWrite(2, HIGH); // turn on channel A digitalWrite(3, HIGH); // turn on channel B digitalWrite(4, HIGH); // turn on channel C digitalWrite(5, HIGH); // turn on channel D digitalWrite(6, HIGH); // turn on channel E digitalWrite(7, HIGH); // turn on channel F digitalWrite(8, HIGH); // turn on channel G digitalWrite(9, HIGH); // turn on channel H } } } void mode2() { int x; for (int x = 2; x = 2; x--) { digitalWrite(x, HIGH); // turn the EL channel on delay(100); // wait for 1/10 second digitalWrite(x, LOW); // turn the EL channel off } mode2(); } const int Key_pin = A0; const int Gate_pin = A1; const int Envl_pin = A2; const int Audio_pin = A3; int Key_read; int Previous_Key; int Value; int Mode_1; int Mode_2; String Key_id; String Vol_id; void setup() { Serial.begin(9600); pinMode(2, OUTPUT); // channel A pinMode(3, OUTPUT); // channel B pinMode(4, OUTPUT); // channel C pinMode(5, OUTPUT); // channel D pinMode(6, OUTPUT); // channel E pinMode(7, OUTPUT); // channel F pinMode(8, OUTPUT); // channel G pinMode(9, OUTPUT); // channel H pinMode(10, OUTPUT); // Escudo Status LED pinMode(13, OUTPUT); // Arduino Status LED pinMode(A0, INPUT); // Button pinMode(A1, INPUT); // Gate pinMode(A2, INPUT); // Envelope pinMode(A3, INPUT); // Audio } void loop() { Keypad(); Sound_detect(); Mode_1(); Mode_2(); } void Keypad() { Key_read = analogRead(Key_pin); if (not Key_read 300 and Key_read 400 and Key_read 450 and Key_read 500 and Key_read = 10 and Value = 20 and Value = 30) Vol_id = "High"; if (Value >= 10) { Serial.print(Value); Serial.println(" - The volume is " + Vol_id); delay(100); } void Mode_1() { digitalWrite(2, HIGH); // turn on channel A digitalWrite(3, HIGH); // turn on channel B digitalWrite(4, HIGH); // turn on channel C digitalWrite(5, HIGH); // turn on channel D digitalWrite(6, HIGH); // turn on channel E digitalWrite(7, HIGH); // turn on channel F digitalWrite(8, HIGH); // turn on channel G digitalWrite(9, HIGH); // turn on channel H } void Mode_2() { { int x; for (int x = 2; x = 2; x--) { digitalWrite(x, HIGH); // turn the EL channel on delay(100); // wait for 1/10 second digitalWrite(x, LOW); // turn the EL channel off } } }

Do your code in little chunks. Get a chunk working. Make it encapsulated. Eg light up mode. I see you are doing some functions in your code. Do it in separate sketches each saved with a sensible name. In one chunk do buttons and set a variable such as modeSelect. Your button can cycle through modes by adding 1 to a variable each time using modulus %. And dividing by the number of modes. In loop you just need an if modeSelect=1 do x if 2 do y if 3 do z You can combine sketches at the end. This helps you to picture things as objects and also leads to potential library creation so that your main code will look neat and easily understood Your final sketch should read (in pseudo code like this) PollButton() If modeSelect = 1 LightUp() If modeSelect = 2 Flash() Else DosomethingCool() Get a timing setup for delays without delay! Think in loops

Never heard about analog keyboards or buttons, only digitally working. Analog button.. usually a potentiometer....

[image] h27790: void Mode_2() Keypad will be non-responsive while this is running.

Probably key switches on a resistive divider... standard way to save pins.

Possible for buttons but rather demanding for a matrix keyboard I think...

[image] pmagowan: Your button can cycle through modes by adding 1 to a variable each time using modulus %. And dividing by the number of modes. In loop you just need an if modeSelect=1 do x if 2 do y if 3 do z How does this work when I have five discreet buttons that I want to have assigned functions? [image] pmagowan: Get a timing setup for delays without delay! Think in loops In what regard? I have some delays already.

[image] anon57585045: Probably key switches on a resistive divider... standard way to save pins. Correct

[image] h27790: I have some delays already. ...that you must get rid of, if you expect the buttons to respond!

And always include a schematic of your project when asking questions.

[image] LarryD: And always include a schematic of your project when asking questions. I don't know where to begin to provide that.

Code Structure - Switching Activities with Analog Buttons

Projects General Guidance

LarryD July 4, 2022, 5:56pm 13

Start with reading these discussions.

https://learn.sparkfun.com/tutorials/how-to-read-a-schematic

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Code Structure - Switching Activities with Analog Buttons

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