> For the complete documentation index, see [llms.txt](https://help.trikset.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.trikset.com/ev3/sensory-variables.md).

# Сенсорные переменные для контроллера LEGO EV3

Кроме [констант](/studio/programming-visual/expression-syntax/const.md), в TRIK Studio доступны зарезервированные переменные, которые хранят значения показаний сенсоров, подключенных к соответствующим портам.

Эти значения можно присваивать переменным и использовать в математических выражениях.

| Переменная                                                                                                                                                                                                                                                                                 | Описание                                                                                                                                                                                                   |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <p><strong><code>buttonBack</code></strong></p><p><strong><code>buttonDown</code></strong></p><p><strong><code>buttonEnter</code></strong></p><p><strong><code>buttonLeft</code></strong></p><p><strong><code>buttonRight</code></strong></p><p><strong><code>buttonUp</code></strong></p> | <p>Состояние кнопок на корпусе робота:</p><p>«Назад», «Вниз», «Ввод», «Влево», «Вправо», «Вверх» соответственно.</p><p></p><p>Возможные значения:</p><p>0 — кнопка не нажата.</p><p>1 — кнопка нажата.</p> |
| <p><strong><code>encoderA</code></strong></p><p><strong><code>encoderB</code></strong></p><p><strong><code>encoderC</code></strong></p><p><strong><code>encoderD</code></strong></p>                                                                                                       | Показания энкодеров на портах A, B, C, D соответственно.                                                                                                                                                   |
| <p><strong><code>sensor1</code></strong></p><p><strong><code>sensor2</code></strong></p><p><strong><code>sensor3</code></strong></p><p><strong><code>sensor4</code></strong></p>                                                                                                           | Показания датчиков на портах 1, 2, 3, 4 соответственно.                                                                                                                                                    |


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