MQTT Module Configuration
If your device is connected to Internet via wifi or ethernet, you can enable it to forward packets along to an MQTT server. This allows users on the local mesh to communicate with users on the internet. One or more channels must also be enabled as uplink and/or downlink for packets to be transmitted from and/or to your mesh (See channels). Without these settings enabled, the node will still connect to the MQTT server but only send status messages.
The MQTT module config options are: Enabled, Server Address, Username, Password, Encryption Enabled, JSON Enabled, TLS Enabled, and Root Topic. MQTT Module config uses an admin message sending a ConfigModule.MQTT protobuf.
Settings
MQTT Module Config Values
Enabled
Enables the MQTT module.
Server Address
The server to use for MQTT. If not set, the default public server will be used.
Username
MQTT Server username to use (most useful for a custom MQTT server). If using a custom server, this will be honored even if empty. If using the default public server, this will only be honored if set, otherwise the device will use the default username.
Password
MQTT password to use (most useful for a custom MQTT server). If using a custom server, this will be honored even if empty. If using the default server, this will only be honored if set, otherwise the device will use the default password.
Encryption Enabled
Whether to send encrypted or unencrypted packets to MQTT. This parameter is only honored if you also set server (the default official mqtt.meshtastic.org server can handle encrypted packets). Unencrypted packets may be useful for external systems that want to consume meshtastic packets.
JSON Enabled
Enable the sending / consumption of JSON packets on MQTT. These packets are not encrypted, but offer an easy way to integrate with systems that can read JSON.
TLS Enabled
If true, we attempt to establish a secure connection using TLS.
Root Topic
The root topic to use for MQTT messages. This is useful if you want to use a single MQTT server for multiple meshtastic networks and separate them via ACLs.
MQTT Module Config Client Availability
- Android
- Apple
- CLI
- Web
MQTT Config options are available for Android.
- Open the Meshtastic App
- Navigate to: Vertical Ellipsis (3 dots top right) > Radio Configuration > MQTT
MQTT Config options are available on iOS, iPadOS and macOS at Settings > Modules > MQTT.
All MQTT module config options are available in the python CLI. Example commands are below:
| Setting | Acceptable Values | Default |
|---|---|---|
| mqtt.enabled | true, false | false |
| mqtt.address | string | mqtt.meshtastic.org |
| mqtt.username | string | meshdev |
| mqtt.password | string | large4cats |
| mqtt.encryption_enabled | true, false | false |
| mqtt.json_enabled | true, false | false |
| mqtt.tls_enabled | true, false | false |
| mqtt.root | string |
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.
meshtastic --set mqtt.enabled true --set mqtt.json_enabled true
meshtastic --set mqtt.enabled true
meshtastic --set mqtt.enabled false
meshtastic --set mqtt.json_enabled true
meshtastic --set mqtt.json_enabled false
All MQTT module config options are available for the Web UI.
Connect to the Default Public Server
- Android
- Apple
- CLI
- Web
1. Enable the MQTT Module
Navigate to: Vertical Ellipsis (3 dots top right) > Radio configuration > MQTT: Turn on the slider for MQTT enabled and tap Send.
Optional: To use your phone's internet connection to send and receive packets over the web, also enable the slider for MQTT Client Proxy and skip the Configure Network Settings step below.
Though this option may be visible in your UI, Client Proxy is not yet functional with the Android App.
2. Enable Channel Uplink & Downlink
Navigate to: Vertical Ellipsis (3 dots top right) > Radio configuration > Channels > LongFast: Turn on the sliders for Uplink enabled and Downlink enabled, then tap Save and tap Send.
3. Configure Network Settings
Navigate to: Vertical Ellipsis (3 dots top right) > Radio configuration > Network: Turn on the slider for WiFi enabled, Enter the SSID and PSK for your network, then tap Send.
1. Enable the MQTT Module
Navigate to Settings > MQTT: Turn on the slider for MQTT enabled and tap Save
Optional: To use your phone's internet connection to send and receive packets over the web, also enable the slider for MQTT Client Proxy and skip the Configure Network Settings step below.
2. Enable Channel Uplink & Downlink
Navigate to Settings > Channels > Primary Channel: Turn on the sliders for Uplink enabled and Downlink enabled - Tap Save
3. Configure Network Settings
Navigate to Settings > Network: Turn on the slider for WiFi enabled - Enter your SSID and PSK for your network - Tap Save
1. Enable the MQTT Module
meshtastic --set mqtt.enabled true
2. Enable Channel Uplink & Downlink
meshtastic --ch-set uplink_enabled true --ch-index 0
meshtastic --ch-set downlink_enabled true --ch-index 0
or chained together:
meshtastic --ch-set uplink_enabled true --ch-index 0 --ch-set downlink_enabled true --ch-index 0
3. Configure Network Settings
meshtastic --set network.wifi_enabled true
meshtastic --set network.wifi_ssid "your network"
meshtastic --set network.wifi_psk yourpassword
or chained together:
meshtastic --set network.wifi_enabled true --set network.wifi_ssid "your network" --set network.wifi_psk yourpassword
1. Enable the MQTT Module
Navigate to Config > Module Config > MQTT - Turn on the slider for MQTT enabled - Click the Save icon.
Optional: To use your client's internet connection to send and receive packets over the web, also enable the slider for Proxy to Client Enabled and skip the Configure Network Settings step below.
Though this option may be visible in your UI, Client Proxy is not yet functional with the Web Client.
2. Enable Channel Uplink & Downlink
Navigate to Channels > Primary: Turn on the sliders for Uplink Enabled and Downlink Enabled - Click the Save icon.
3. Configure Network Settings
Navigate to Config > Device Config > Network: Turn on the slider for Enabled - Enter your SSID and PSK for your network - Click the Save icon.
