Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- #define led 13
- enum {sample_state,high_state,low_state}; //Enumerate(give values to) the variables so they are 0,1,2 respectivly
- unsigned int state=sample_state;
- unsigned int val1,val2,val3,mVal,hiVal,loVal;
- unsigned int timer;
- /*----------------------------------------Main loop--------------------------------------*/
- void setup() {
- Serial.begin(115200);
- pinMode(13,OUTPUT);
- }
- void loop() {
- switch(state){ //There are 3 different states that take place, take sample from inputs, set high duration, set low duration
- case sample_state:
- val1 = analogRead(pwmPin);
- val2 = 1023 -analogRead(pwmPin);
- val3 = analogRead(freqPin);
- mVal = map(Val3,0,1023,60,2000); //Mapped from 60-2000millisec
- hiVal = map(Val1,0,1023,0,mVal);
- loVal = map(Val2,0,1023,0,mVal) +1;
- bpm = (2000 / mVal) * tempoMin; // tempoMin = 30
- Serial.print(bpm);
- state=high_state; //We have inputs, next we go on to high state mode
- digitalWrite(led,HIGH); //Set the pin high as the next state is just a timer
- timer=millis(); //Set timer to the time when this code block finishes
- break;
- case high_state:
- if(millis()>=timer+hiVal){ //Sit in this state until the timer threashold reaches the end of the high state
- state=state_low; //Move on to low state tmer
- digitalWrite(led,LOW); //Set pin low
- timer=millis(); //Reset timer
- }
- break;
- case low_state:
- if(millis()>=timer+loVal){ //Sit in this state until the timer threashold reaches end of the low state
- state=state_sample; //Cycle completed, go back to taking a new sample and repeat cycle
- }
- break;
- default: //This should never happen
- Serial.println("state variable not valid");
- while(1);
- break;
- }
- }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement