Node / meshtastic / Meshtastic-Android / files / docs / pt-rPT / user / connections.md

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title: Ligações

parent: User Guide

nav_order: 2

last_updated: 2026-07-08

description: Connect your phone or desktop to a Meshtastic radio via Bluetooth, USB, or TCP/IP.

aliases:

Tff7b72- bluetooth

Tff7b72- usb

Tff7b72- tcp

Tc9d1d9 - pairing

Tc9d1d9---

Tc9d1d9# Ligações

Meshtastic supports multiple transport methods to communicate between your phone/desktop and a radio node.

Tc9d1d9## Bluetooth (BLE)

Bluetooth Low Energy is the default and most common connection method on Android.

Tc9d1d9### Pairing a Device

Tff7b721. Ensure your Meshtastic radio is powered on and in pairing mode.

Tff7b722. Open the app and navigate to the **Connect** tab.

Tff7b723. Tap **Scan for Bluetooth devices** — nearby Meshtastic radios will appear.

Tff7b724. Select your device from the list.

Tff7b725. Accept the Bluetooth pairing prompt if shown.


Use the transport selector — a segmented button row below the connection card — to switch between the Bluetooth, Network, and USB transports (one is active at a time):


Tff7b72> 💡 **Tip:** If your device doesn't appear, check that Bluetooth and Location permissions are granted, and that the radio is not already connected to another device.

Tc9d1d9### Connection Status

| Icon | State | Descrição |

| ---- | -------------- | ----------------------------- |

| 🟢 | Ligado | Active radio link established |

| 🟡 | A ligar | Handshake in progress |

| 🔴 | Desconectado | No active connection |

| ⚪ | Not configured | No device selected |

When connecting, a status indicator shows the current connection state:


If no devices are found, the app shows an empty state with instructions:


Tc9d1d9### Troubleshooting Bluetooth

Tff7b72- **Device not found:** Toggle Bluetooth off/on, ensure location is enabled.

Tff7b72- **Connection drops:** Move closer to the radio; check for interference.

Tff7b72- **Pairing rejected:** Forget the device in Android Bluetooth settings and retry.

Tc9d1d9## USB Serial

USB connections provide a wired alternative, useful for desktop or when Bluetooth is unavailable.

Tc9d1d9### Setup

Tff7b721. Connect your radio via USB cable to your device.

Tff7b722. The app will prompt for USB permission — tap **Allow**.

Tff7b723. The connection is established automatically.

Tff7b72> ⚠️ **Note:** USB connections require OTG support on Android devices.

Tc9d1d9## TCP/IP (Network)

Some Meshtastic radios support WiFi/Ethernet connectivity, allowing TCP-based connections over your local network. Get the radio onto your network first — using the radio's own WiFi settings (via the firmware web interface or another connection) — then connect to it from the app.

Tc9d1d9### Connecting over the Network

Tff7b721. Make sure the radio is on the same local network as your phone/desktop.

Tff7b722. On the Connect screen, select **Network** in the transport selector.

Tff7b723. Choose the radio one of two ways:

Tff7b72- **Scan for network devices** — toggle this on to auto-discover radios that advertise themselves on the local network (mDNS / Ta5d6ff`_meshtastic._tcp`). Discovered devices appear in the list; tap one to connect.

Tff7b72- **Add device manually…** — enter the radio's IP address (or hostname) and port (default: Ta5d6ff`4403`).

Tff7b724. Previously-used network addresses are remembered under **Recent Network Devices** for quick reconnection (long-press to remove one).

Tff7b72> 💡 **Tip:** Network discovery uses mDNS, which only works when both devices are on the same subnet. On Android 17+ the app needs the local-network permission for scanning; if discovery finds nothing, add the device manually by IP.

Tc9d1d9### When to Use TCP

Tff7b72- Radio is on the same local network

Tff7b72- Testing with a simulated radio

Tff7b72- Environments where Bluetooth has interference issues

Tc9d1d9## Reconnection Behavior

The app reconnects to the **last selected device** on startup. You can switch transports from the Connect screen at any time.

To disconnect, tap the disconnect button on the Connect screen:


Tc9d1d9## Desktop Connections

On Desktop (Linux/macOS/Windows), the app supports:

Tff7b72- **Bluetooth (BLE)** — via the Kable library; works on macOS, Linux, and Windows

Tff7b72- **USB Serial** — primary wired connection method

Tff7b72- **TCP/IP** — for network-connected radios

See [Tff7b72Desktop App](Te6edf3desktop) for platform-specific details and keyboard shortcuts.

Tc9d1d9## Related Topics

Tff7b72- [Tff7b72Getting Started](Te6edf3onboarding) — first-launch setup and permissions

Tff7b72- [Tff7b72Settings — Radio & User](Te6edf3settings-radio-user) — Bluetooth and network configuration

Tff7b72- [Tff7b72Desktop App](Te6edf3desktop) — desktop-specific connection details

Tff7b72- [Tff7b72Supported devices](Te6edf3https://meshtastic.org/docs/hardware/devices) — full list of compatible radios on meshtastic.org

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