1-Wire temperature logger

Reads temperature data from one or multiple 1-Wire sensors. Data can be written to file(s) or external systems. Allows you to define fermentation ranges and batch numbers.

As a home brewer I wanted to monitor the beer during the fermentation but not use any pre-built solutions out there. Written in modern PHP is and pretty generic and can be used in your own projects without having to brew beer though making beer is generally a good thing.

Logging data

Supports logging to:

• CSV files. Recorded data can be written to CSV files. One file pr. sensor. Supports batch/production-code to be added to sensors. CVS files can be analyzed by R and exposed in a simple HTML page.
• Telegram messenger.
• Temperature alarms can be written to separate file or a separeate Telegram messager group.
• Brewers Friend brew sessions.

Feel free to write your own logger handler or request one. These are the one I needed and the time a wrote it and should be pretty easy to implement.

Tested and works with

• Raspberry Pi computers.
• Supported OS - Linux.
  • Linux 1-Wire drivers loaded.
  • Sensor(s) attached to the GPIO bus.
• Requires PHP 8.0 or newer.
• Graphing requires R
• Webinterface requires a webserver service.
• Brewers friend require an account with a API key.

Configuration

The application can use a configuration file, settings.php. Place it in the application root directory.

settings.php example

$configuration['LOG_DIRECTORY'] = '/home/linus/logs';
$configuration['BREW_ROOT'] = __DIR__;

$configuration['BATCH'] = [
    '83' => [
        'probe' => '28-0000098101de',
        'ambient' => '10-000802be73fa',
        'low_limit' => 19.3,
        'high_limit' => 23.8,
    ],
    '84' => [
        'probe' => '10-000802a55696',
        'ambient' => '10-000802be73fa',
        'low_limit' => 17,
        'high_limit' => 26,
    ],
    '85' => [
        'probe' => '10-000802a4ef03',
        'ambient' => '10-000802be73fa',
        'low_limit' => 17,
        'high_limit' => 26,
    ],
    'special' => [
        'probe' => '10-000802be7340',
        'ambient' => '10-000802be73fa',
        'low_limit' => 0.5,
        'high_limit' => 5,
    ],
];

$configuration['BREWERS_FRIEND'] = [
    'SESSION_ID' => '12345',
    'TOKEN' => 'a42abc3182b8fcb45754210312345',
];

$configuration['TELEGRAM'] = [
    'TOKEN' => '138712223:BBENCNuSFK34-ABC-BOpLGfJTCgxzdw1234',
    'CHANNEL' => '-100123712345',
];

$configuration['TELEGRAM_ALARM'] = [
    'TOKEN' => '138712223:BBENCNuSFK34-ABC-BOpLGfJTCgxzdw1234',
    'CHANNEL' => '-520654321',
];
 

Usage

Have a look in the examples directory.

Example, find all 1-Wire sensors

use steinmb\Onewire\OneWire;

include_once __DIR__ . '/../vendor/autoload.php';

$oneWire = new OneWire();
echo (string) $oneWire . PHP_EOL;