Multiple servos with buttons

Projects Programming
6

For the independant operation of both servos the whole code must follow the non-blocking paradigma.

Non-blocking means:
the most outer loop which is

void loop() {
//top of loop
// any kind of code (can be THOUSANDs of lines of code)
// bottom of loop
}

must run down completely at high speed from
//top of loop
down to
// bottom of loop

to make sure that this is running down fast
all lines of code inbetween must be finished fast

This can be achieved by a coding-structure that makes sure to
quickly jump into a sub-function and quickly jump out again

void loop() {
  myFunctionOne(); // quickly jump in / quickly jump out 
  myFunctionTwo(); // quickly jump in / quickly jump out 
  //....
  myFunction10(); // quickly jump in quickly jump out 
}

Not all code shall be executed at all times.
This means code-execution is made conditional

void myFunctionOne() {
  if (ExecutionConditionONE == true) {
    // execute code
  }
  else {
    //doNothing
  }
  
}


void myFunctionTwo() {
  if (ExecutionConditionTwo == true) {
    // execute code
  }
  else {
    //doNothing
  }
  
}

for-loops and while-loops must be avoided completely

counting variables up/down is done bye each new call of the sub-functions

void myFunctionOne() {
  if (ExecutionConditionONE == true) {
    posA = posA + 1; 
  }
  else {
    //doNothing
  }
  
}

remember: loop() is looping at high speed all the time
This means the sub-function is called over an over again through void loop()
instead of a for-loop

Now changing the servo-position slowly requires non-blocking timing
which is explained here