### Programming Mode
### Standalone Mode
### Feelix - Arduino Setup
{% hint style="danger" %}
**Important:** Use a microcontroller with **3.3V logic**, such as the **ESP32**.\
❌ **Do NOT use** microcontrollers like the **Arduino UNO**, which use **5V logic** — this can **damage the components**.
{% endhint %}
### Feelink Setup
{% hint style="danger" %}
**Important:** Use a microcontroller with **3.3V logic**, such as the **ESP32**.\
❌ **Do NOT use** microcontrollers like the **Arduino UNO**, which use **5V logic** — this can **damage the components**.
{% endhint %}
