# Bluetooth Connection
## Establish Bluetooth connection
The software mode is divided into Interactive Mode and Download Mode, both of which require a Bluetooth connection to function.

Requirements:

● The computer must have Bluetooth functionality.

● ICBricks main controller.

### Steps
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| Step 1: Turn on Bluetooth on the computer.<br/>Turn on Bluetooth on the main controller. | Step 2: In the programming software, click "Connect," select the ICBricks main controller, and do not close the connection window.<br/>In the connection window, select Bluetooth connection and choose the device name you wish to connect to. If no device is found, select "Start Scanning." |
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| Step 3: Once the connection is complete, the software will display the currently connected device. | Note: If the connection window is closed, you can reopen it by clicking "connect" in the toolbar. |