⏰ Attotime

Ultra-compact library for working with timings on Arduino (or other boards with Arduino framework).

Usage

Timer

Timer is the simplest class that allows you to set a time interval and determine if it has passed.

#include <attotime.h>

Timer timer;

void setup() {
  Serial.begin(115200);
  timer.start(1000);
}

void loop() {
  if (timer.isExpired()) {
    Serial.println("Timer expired!");
  }
}

Stopwatch

Stopwatch allows you to measure how much time has passed since it was started.

#include <attotime.h>

Stopwatch stopwatch;

void setup() {
  Serial.begin(115200);
  stopwatch.start();
}

void loop() {
  Serial.printf("Stopwatch time: %d\n", stopwatch.split());
}

Progress

Progress allows you to get the percentage of time completion as a uint8_t value. Convenient for programming animations.

#include <attotime.h>
#include <FastLED.h>

Progress progress;

void setup() {
  Serial.begin(115200);
  FastLED.addLeds<NEOPIXEL, PIN_LEDS>(leds, 0);
  FastLED.setBrightness(0);
  FastLED.show();
  // Set brightness from 0 to 255 in 2 seconds
  progress.start(2000);
}

void loop() {
  FastLED.delay(20);
  FastLED.setBrightness(progress.get());
  FastLED.show();
}

Development

Some scripts are available for development in the Makefile:

• test — Runs the unit tests.
• format — Formats C/C++ source code.
• configure — Initializes the PIO environment.