Question

Write an Energia sketch that measures how long the on-board push button has been depressed. Output the duration of the button press to the serial monitor window. please help

Answer 1

I hope this will help

int pinNumber = 7;
int led = 13;
int cur;   
long millis_held;
long secs;
long prev_secs_held;
byte previous = HIGH;
unsigned long firstTime;

void setup() {
Serial.begin(9600);
pinMode(led, OUTPUT);
digitalWrite(pinNumber, HIGH);
}

void loop() {
cur = digitalRead(pinNumber);
if (cur == LOW && previous == HIGH && (millis() - firstTime) > 200) {
firstTime = millis();
}
millis_held = (millis() - firstTime);
secs = millis_held / 1000;
if (millis_held > 50) {

if (cur == LOW && secs > prev_secs_held) {
ledblink(1, 50, led);
}   
if (cur == HIGH && previous == LOW) {
if (secs <= 0) {
ledblink(1,750,led);
}
if (secs >= 1 && secs < 3) {
ledblink(10,200,led);
}
if (secs >= 3) {
Serial.print("It Works!!! Seconds held: ");
Serial.print(secs);
Serial.print(" Milliseconds held: ");
Serial.println(millis_held);
}
}
}

previous = cur;
prev_secs_held = secs;
}

void ledblink(int times, int lengthms, int pinnum){
for (int x=0; x<times;x++) {
digitalWrite(pinnum, HIGH);
delay (lengthms);
digitalWrite(pinnum, LOW);
delay(lengthms);
}
}