---
name: wireless
description: Wi-Fi and Bluetooth on the Arduino Uno Q — both radios live on the Linux (MPU) side, not the MCU. Load this for questions about connecting to Wi-Fi, scanning networks, Bluetooth/BLE, or why WiFi.h won't compile in a sketch.
---

# Wireless on the Uno Q (Linux side only)

The Wi-Fi 5 + Bluetooth 5.1 radio (WCN3980) is on the **MPU (Linux)** side. The
**MCU has no wireless peripheral** — sketches cannot do Wi-Fi/BT directly. A sketch
that needs the network must call the MPU over the Bridge (see the `bridge` skill).

## Wi-Fi (Linux)

Managed by **NetworkManager** on the Debian side:

```sh
nmcli device wifi list                     # scan
nmcli device wifi connect "<SSID>" password "<PSK>"
nmcli connection show --active             # verify
```

Use the `network` tool for a read-only view of interfaces + the default gateway.

## Bluetooth / BLE (Linux)

Managed by **BlueZ**:

```sh
bluetoothctl                               # scan on / pair / connect
```

From Python: **bleak** (central/client) or **bless** (peripheral/server).

## Pitfalls

- `#include <WiFi.h>` / `<WiFiNINA.h>` do **not** compile for
  `arduino:zephyr:unoq` — there is no MCU Wi-Fi.
- To get sensor data online: MCU samples the pin → Bridge → Python (MPU) makes the
  HTTP request / serves the dashboard.