meshtastic/docs/configuration/radio/bluetooth.mdx

---
id: bluetooth
title: Bluetooth Settings
sidebar_label: Bluetooth
description: Configure Bluetooth settings on your Meshtastic device for connectivity with smartphones and other devices.
---

import Tabs from "@theme/Tabs";
import TabItem from "@theme/TabItem";

The Bluetooth config options are: Enabled, Pairing Mode and Fixed PIN Value. Bluetooth config uses an admin message sending a `Config.Bluetooth` protobuf.

:::info
ESP32 Devices: Bluetooth will be disabled if WiFi is enabled. The WiFi setting takes precedence.
:::

## Bluetooth Config Values

### Enabled

Enables Bluetooth.

### Pairing Mode

Specify pairing mode.

`RANDOM_PIN` generates a random PIN during runtime.
`FIXED_PIN` uses the fixed PIN that should then be additionally specified.
Finally, `NO_PIN` disables PIN authentication.

### Default Pairing Mode

The default pairing mode will be determined based on whether the device has or does not have a screen attached to it during the first boot (or with a stale device state) unless manually configured via the Bluetooth config options.

- **Screen Attached:** If your device boots up for the first time (or with a stale device state), and a screen is detected, the default pairing mode will be set to `RANDOM_PIN`. Should the attached screen be removed after the device has already been booted, the default pairing mode of `RANDOM_PIN` will remain unless manually changed to `FIXED_PIN` or `NO_PIN`. It is recommended the pairing mode be updated prior to removing the attached screen.
- **No Screen Attached:** If your device boots up for the first time (or with a stale device state), and no screen is detected, the default paring mode will be set to `FIXED_PIN` with the default value listed below unless manually configured to a custom value.

### Fixed PIN

If your pairing mode is set to `FIXED_PIN`, the default value is **123456**. For all other pairing modes, this number is ignored. A custom integer (6 digits) can be set via the Bluetooth config options.

:::danger Warning
It is strongly recommended that you change the default `FIXED_PIN` code on your device. Leaving the default code in place can pose a significant security risk.
:::

## Bluetooth Config Client Availability

<Tabs
groupId="settings"
defaultValue="cli"
values={[
{label: 'Android', value: 'android'},
{label: 'Apple', value: 'apple'},
{label: 'CLI', value: 'cli'},
{label: 'Web', value: 'web'},
]}>
<TabItem value="android">

#### Android

:::info

All Bluetooth config options are available for Android.

1. Open the Meshtastic App
2. Navigate to: **Vertical Ellipsis (3 dots top right) > Radio Configuration > Bluetooth**

:::

</TabItem>
<TabItem value="apple">

#### Apple

:::info

All bluetooth config options are available on iOS, iPadOS and macOS at Settings > Device Configuration > Bluetooth.

:::

</TabItem>
<TabItem value="cli">

#### CLI

:::info

All Bluetooth config options are available in the python CLI. Example commands are below:

:::

|       Setting        |          Acceptable Values          |   Default    |
| :------------------: | :---------------------------------: | :----------: |
| `bluetooth.enabled`  |           `true`, `false`           |    `true`    |
|   `bluetooth.mode`   | `RANDOM_PIN`, `FIXED_PIN`, `NO_PIN` | `RANDOM_PIN` |
| `bluetooth.fixedPin` |        `integer` (6 digits)         |   `123456`   |

:::tip

Because the device will reboot after each command is sent via CLI, it is recommended when setting multiple values in a config section that commands be chained together as one.

```shell title="Example:"
meshtastic --set bluetooth.enabled true  --set bluetooth.fixed_pin 111111
```

:::

```shell title="Enable/Disable Bluetooth Module"
meshtastic --set bluetooth.enabled true
meshtastic --set bluetooth.enabled false
```

```shell title="Set a fixed pin"
meshtastic --set bluetooth.mode FIXED_PIN
meshtastic --set bluetooth.fixed_pin 111111
```

</TabItem>
<TabItem value="web">

#### Web

:::info

All Bluetooth module config options are available for the Web UI.

1. Open the Meshtastic Web UI.
2. Navigate to: **Radio Config > Bluetooth**

:::

</TabItem>
</Tabs>