Hello all!
I'm trying to figure out how to generate a float value that would count from a variable low set point to a variable high set point and a variable speed and back.
Ex. Pot 1 sets low to 3
Pot 2 sets high to 20
Pot 3 sets counting interval to 1 sec
3, one second delay, 4 one second delay .....to 20 then back down again.
Also I need to avoid delays as this will be running in a pretty extensive loop that is monitoring other variables at the same time.
Thanks in advance.
-Dustin
Apart from the fact of whyyou want to do this in the first place why does it have to be a float?
To calculate the increment value just take the diferance between the finish and start numbers and divide it by the number of steps you want it to take.
I'm not sure I understand how to code what you're telling me.
As far as the why I'm feeding a 4-20ma PID loop which is coded to get it's setpoint from a float. It's a very stable and well written code so I really didn't want to mess with it too much if I could avoid it.
Give an example of a situation where you need a floating point value.
Something like this ?
if (millis() - prevCountMillis >= countIntervalMillis) {
prevCountMillis += countIntervalMillis;
bottom = analogRead(pot1pin);
top = analogRead(pot2pin);
countIntervalMillis = analogRead(pot3pin) * something;
count += step; // will be either +1 or -1
if (count >= top or count <= bottom) {
step = -step;
}
}
...R