#define TICK_RATE 1000

// uint32_t glNexTick = 0;
// uint32_t glCount = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("System ready");
}

void loop() {
  // put your main code here, to run repeatedly:
  uint32_t static count = 0;
  uint32_t static nextTick = 0;
  uint32_t now = millis();

  if (nextTick <= now) {   // 0 318169 636324 954152
    nextTick += TICK_RATE;
    Serial.println(count);
  }

  // if (nextTick <= now) {   // 0 318169 636323 954151
  //   nextTick = millis() + TICK_RATE;
  //   Serial.println(count);
  // }

  // if (nextTick <= now) {   // 0 318169 636324 954152
  //   nextTick = now + TICK_RATE;
  //   Serial.println(count);
  // }

  // if (glNexTick <= now) {   // 0 318169 636324 954152
  //   glNexTick += TICK_RATE;
  //   Serial.println(glCount);
  // }

  // if (now - nextTick <= TICK_RATE) {   // 0 294601 589189 883475
  //   nextTick += TICK_RATE;
  //   Serial.println(count);
  // }

  count++;
  // glCount++;
}