28-05-2019, 13:45
Udało mi się napisać działający kod, tak aby diody led świeciły się po wciśnięciu danego przycisku. Dziękuję za pomoc wszystkim. Umieszczam tutaj działający kod:
Kod:
char msgs[5][15] = {
"Right Key OK ",
"Up Key OK ",
"Down Key OK ",
"Left Key OK ",
"Select Key OK" };
char start_msg[15] = {
"Start loop "};
int adc_key_val[5] ={
30, 150, 360, 535, 760 };
int NUM_KEYS = 5;
int adc_key_in;
int key=-1;
int oldkey=-1;
void setup() {
pinMode(13, OUTPUT); //we'll use the debug LED to output a heartbeat
pinMode(12, OUTPUT);
pinMode(11, OUTPUT);
Serial.begin(9600);
/* Print that we made it here */
Serial.println(start_msg);
}
void loop()
{
adc_key_in = analogRead(0); // read the value from the sensor
digitalWrite(13, HIGH);
/* get the key */
key = get_key(adc_key_in); // convert into key press
if (key != oldkey) { // if keypress is detected
delay(50); // wait for debounce time
adc_key_in = analogRead(0); // read the value from the sensor
key = get_key(adc_key_in); // convert into key press
if (key != oldkey) {
oldkey = key;
if (key >=0){
// here is where you know that a button is pushed
// should be a unique number for each button
Serial.println((String)key);//get the number that represents each button !!!
// do stuff here
if(key == 0){ digitalWrite(11,HIGH);digitalWrite(12,LOW);}
if(key == 1){ digitalWrite(12,HIGH);digitalWrite(11,LOW);}
}
}
}
digitalWrite(13, LOW);
}
// Convert ADC value to key number
int get_key(unsigned int input)
{
int k;
for (k = 0; k < NUM_KEYS; k++)
{
if (input < adc_key_val[k])
{
return k;
}
}
if (k >= NUM_KEYS)
k = -1; // No valid key pressed
return k;
}