Update and rename TEMPLATE.md to ESP_32_BLE_Connection.md

ESP_32_BLE_Connection.md

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+---
+title: Connect ESP-32 to other devices via BLE
+date: 05-13-2025
+author:
+  - name: Lukas
+team:
+  - team: T12
+---
+
+![BLE Diagram](https://tinyurl.com/BLE-img)
+
+## Introduction
+
+This mini tutorial shows how to set up a simple BLE server using an ESP32-S3 Mini and let it communicate with other devices.
+
+### Learning Objectives
+
+- get familiar with the ESP-32
+- experience with Arduino
+- setup BLE connection from ESP-32 to other devices
+- testing and troubleshooting it
+
+## Setup Hardware
+- ESP-32 connected with USB-C to your Laptop
+
+## Setup Software
+- Arduino installed
+
+## Example Code (I will add the full code step by step with explanations too)
+
+```cpp
+#include <BLEDevice.h>
+
+```
+## Testing
+- connect to BLE app
+
+## Common errors