delayMicroseconds to millis

Projects Programming
3

TolpuddleSartre:
Is it critical to get rid of the very short blocking delayMicroseconds?
In fact, those delays are almost certainly shorter than pulseIn

i dont know i have alot of other timers in the background this is just a small part of code that im going to integrate into my main sketch. so far i have come up with this,

unsigned long WaterWait = 4000;
unsigned long Waterdelay =0;
unsigned long WaterWait2 = 10;
unsigned long Waterdelay2 =0;
unsigned long Waterdelay3 =0;

int trig = 12;
int echo = 11;

void setup()
{
  Serial.begin(9600);
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT); 
}

void loop()
{
 if (millis() - Waterdelay > WaterWait) {
  long t = 0, h = 0, hp = 0;
  digitalWrite(trig, LOW);
 if (millis() - Waterdelay2 > WaterWait2) {
  digitalWrite(trig, HIGH);
 if (millis() - Waterdelay3 > WaterWait2) {
  digitalWrite(trig, LOW);
  t = pulseIn(echo, HIGH);
  h = t / 45;
  h = h - 5;  // offset correction
  h = 35 - h;  // water height, 0 - 50 cm
  hp = 2.7 * h;  // distance in %, 0-100 %
  Waterdelay2 = millis();
  Waterdelay2 = millis();
  Waterdelay = millis();
  Serial.print(hp);
  Serial.println(F("%"));
 }
 }
 }
}