buttons

Question

I want to us 7 buttons with my arduino uno which will send out different values. For example if i press one button i will get the value of 10, if i press a different button i will get 20, if i press another i will get 30 etc. I haven't found a way to separate the results sent to the serial port.

Nate1616 · Answer

Simon- What does you current code look like? It seems like you are printing all the button states in one line. Is this correct? What you could do is have a line that checks if the button state is high then print that line. Nate

mrchunckuee · Answer

Simon in the function setup not defined buttons as input.

const int bt = 2;

const int bt1 = 4;

int btState = 1;

int lastState = 1;

void setup(){

pinMode(bt, INPUT);

pinMode(bt1, INPUT);

Serial.begin(9600);

}

void loop()

{

btState = digitalRead(bt);

if (btState != lastState)

{

if (btState == HIGH)

Serial.println(440);

delay(30);

lastState = btState;

}

btState = digitalRead(bt1);

if (btState != lastState)

{

if (btState == HIGH)

Serial.println(392);

delay(30);

lastState = btState;

}

clem57 · Answer

int myChar[] = {"261", "293", "329", "349", "392", "440", "493" }; int butArray[] = {2, 3, 4, 5, 6, 7, 8}; int count = 0; int timer = 50; void setup(){ Serial . begin ( 9600 ) ; while ( ! Serial ) ; for (count=0;count<6;count++) { pinMode(butArray[count], INPUT); } void loop() { for (count=0;count<7;count++) { /* read value of buton based on butArray see Arduino - Debounce */ If butArray[count] = 'HIGH' { Serial . print ( myChar[count] ) ; } delay(timer); } }

clem57 · Answer

Take out the " marks on the first line. You need to complete the comment into code reading Arduino - Debounce for the details how.

Nate1616 · Answer

Try this link to solve your problem Simon. https://www.arduino.cc/en/Tutorial/Debounce

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