Hi The memue is changing but serial monitor is showing only case 0. After pressing the button the first time, the monitor is blank. After pressing the button four more times, the serial monitor displays case 0 again. //UUP 2660 2500 2750 //UDOWN 100 //ULEFT 2300 //URIGHT 300 // SW …

[image] tom321: if (adcValue >= btn5Min && adcValue <= btn5Max) that might be better as if (adcValue >= btn1Min && adcValue <= btn5Max) {

Other than the initialization to zero, the variable botonstate does not appear to be being set by the buttons. Don't know what values the ADC returns on your particular board, but just wondering whether the button value was supposed to be derived from those results somehow? For example, might you ha…

I cleaned up the code const int btn5Min = 3100, btn5Max = 3300; // SW int botonState = 0; void setup() { Serial.begin(115200); pinMode(32, OUTPUT); digitalWrite(32, HIGH); pinMode(36, INPUT); } void loop() { int adcValue = analogRead(36); if ((adcValue >= btn5Min && adcValue <…

After pressing the buttons 5 times serial monitor prints C0. This is the program using multi buttons on one wire. I made these changes // if (digitalRead(0) == 0) { if (adcValue >= btn5Min && adcValue <= btn5Max){

Hi, @tom321 Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png? Hand drawn and photographed is perfectly acceptable. Please include ALL hardware, power supplies, component names and pin labels. How is your button wired? Between input and gnd, wit…

[image] camsysca: that might be better as if (adcValue >= btn1Min && adcValue <= btn5Max) { I think your point was to use btn1Min, or that's a typo. Either way, all those read better rearranged a bit. if (btn1Min < adcValue && adcValue <= btn5Max) { C/C++ has no mathematical if (a < …

I changed to one button, results are the same. int botonState = 0; void setup() { Serial.begin(115200); pinMode(14, INPUT_PULLUP); } void loop() { // int adcValue = analogRead(36); // if ((adcValue >= btn5Min && adcValue <= btn5Max)&&adcValue > 20) { if (digitalRead(14) == 0) { bo…

Hi, @tom321 Try this simple code. int botonState = 0; void setup() { Serial.begin(115200); pinMode(14, INPUT_PULLUP); } void loop() { botonState = digitalRead(14); Serial.print(" Button State = "); Serial.println(botonState); delay(1000); } Thanks.. Tom.... :smiley: :+1: :coffee: …

@camsysca suggested printing, as has @TomGeorge . If you don't know how modulo (%) works, don't use it: if (digitalRead(14) == 0) { botonState--; if (botonState < 0) { botonState = 4; } delay(200); } You shoukd also always have a default case in your switch statements,…

The serial monitor displays only case 0

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tom321 May 16, 2026, 1:38pm 8

the circuit

https://forum.arduino.cc/t/multiple-buttons-single-pin/1324225/4

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The serial monitor displays only case 0

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