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dept-of-scrapyard-robotics/hc-sr04
==================================

Drive HC-SR04 ultrasonic distance sensors over GPIO with PHP

0.4.4(1mo ago)05↓50%MITPHPPHP ^8.3

Since Dec 28Pushed 2w agoCompare

[ Source](https://github.com/DeptOfScrapyardRobotics/HC-SR04)[ Packagist](https://packagist.org/packages/dept-of-scrapyard-robotics/hc-sr04)[ Docs](https://dosr.projectsaturnstudios.com)[ RSS](/packages/dept-of-scrapyard-robotics-hc-sr04/feed)WikiDiscussions main Synced 1w ago

READMEChangelogDependencies (6)Versions (8)Used By (0)

HC-SR04
=======

[](#hc-sr04)

### Drive HC-SR04 ultrasonic distance sensors over GPIO with PHP

[](#drive-hc-sr04-ultrasonic-distance-sensors-over-gpio-with-php)

Installation
------------

[](#installation)

```
composer require dept-of-scrpyard-robotics/hc-sr04
```

Usage Example
-------------

[](#usage-example)

```
use GPIO\Common\GPIO;
use GPIO\Digital\DigitalPinBus;
use DeptOfScrapyardRobotics\Sensors\HCSR04\HCSR04;

$output = GPIO::digitalOut('posix')->pin(24)->name('trig')->defaultState(false);
$input = GPIO::digitalIn('posix')->pin(22)->name('echo')->withEvents(true,true)->timeout(-1);

/** @var DigitalPinBus $bus */
$bus = $input->createWith(4, [$output]);

$sensor = new HCSR04(echo: $bus->getPin('echo'), trig: $bus->getPin('trig'));

// Returns a measurement in mm;
$mm = $sensor->distance();
```

###  Health Score

40

—

FairBetter than 86% of packages

Maintenance95

Actively maintained with recent releases

Popularity5

Limited adoption so far

Community6

Small or concentrated contributor base

Maturity45

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~32 days

Recently: every ~7 days

Total

7

Last Release

16d ago

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/10563160?v=4)[Angel Gonzalez](/maintainers/projectsaturnstudios)[@projectsaturnstudios](https://github.com/projectsaturnstudios)

---

Top Contributors

[![projectsaturnstudios](https://avatars.githubusercontent.com/u/10563160?v=4)](https://github.com/projectsaturnstudios "projectsaturnstudios (4 commits)")

---

Tags

frameworkscrapyard-io

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