Meshtastic-Android/docs/ht-rHT/user/settings-module-admin.md

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title	parent	nav_order	last_updated	description	aliases
Settings — Modules & Admin	User Guide	8	2026-05-20	Configure optional feature modules (MQTT, telemetry, canned messages, TAK, and more) and perform device administration.	modules module-config administration

Settings — Modules & Admin

Configure optional feature modules and perform device administration. Modules extend Meshtastic with specialized capabilities — each can be independently enabled or disabled.

💡 Tip: You only need to enable the modules you actually use. Disabling unused modules reduces airtime, saves battery, and simplifies your configuration.

Module settings use a card-based layout with toggle switches, dropdowns, text fields, and sliders:

Module Configuration

MQTT Module

Bridges mesh messages to and from an MQTT broker for internet connectivity. This is how you extend your mesh beyond radio range or integrate with home automation systems.

Setting	Deskripsyon
Enabled	Toggle MQTT bridge
Server	MQTT broker address
Username	Authentication username
Password	Authentication password
Encryption	Encrypt MQTT payloads
JSON Output	⚠️ Deprecated — JSON support removed from firmware; field is ignored
TLS	Use secure connection
Root Topic	Base MQTT topic path
Map Report	Publish position for public map

See MQTT for a detailed usage guide including encryption, privacy, and broker setup.

Serial Module

Enables serial port communication for external device integrations (GPS modules, sensors, or custom hardware). When enabled, the node's serial port can send and receive protobuf or text data, allowing external microcontrollers or computers to interact with the mesh.

Setting	Deskripsyon
Enabled	Activate serial communication
Echo	Echo received serial data back
Mode	Text, Protobuf, or NMEA output
RX/TX Pins	GPIO pins for serial connection
Baud Rate	Serial communication speed

External Notification Module

Controls buzzer, LED, or vibration alerts on your radio hardware. Useful for devices that need to physically signal when a message arrives — particularly helpful for unattended or outdoor installations.

Setting	Deskripsyon
Enabled	Activate notifications
Alert Message	Notify on incoming messages
Alert Message Buzzer	Use buzzer for messages
Alert Message Vibra	Use vibration for messages
Alert Bell	Notify on bell character
Output (GPIO)	Pin for notification output
Active	High or Low active
Duration (ms)	Notification length
Use I2S as Buzzer	Use I2S audio output

Store & Forward Module

Buffers messages for nodes that were temporarily offline, then replays them when those nodes reconnect. Essential for meshes where nodes go in and out of range regularly — ensures messages aren't lost during brief disconnections.

Setting	Deskripsyon
Enabled	Activate store and forward
Heartbeat (s)	Announcement interval
Records	Maximum stored messages
History Return (max)	Max messages to replay
History Return (window)	Time window for replay

💡 Tip: Store and Forward works best on nodes with ample memory (ESP32 with PSRAM). Router nodes are ideal candidates since they're typically always-on.

Range Test Module

Automated range testing tool for evaluating link quality between nodes. When enabled, the node periodically transmits test messages with incrementing counters. A receiver node logs these messages, allowing you to walk or drive away and later analyze at what distance messages stopped arriving.

Setting	Deskripsyon
Enabled	Activate range testing
Sender Interval (s)	Time between test transmissions
Save CSV	Log received test data to SD card

Telemetry Module

Controls what telemetry data your node shares with the mesh. Telemetry includes device health (battery, uptime) and environmental sensor data (temperature, humidity, pressure).

Setting	Deskripsyon
Device Metrics Interval	How often to report device metrics
Environment Metrics Interval	How often to report environment sensors
Air Quality Enabled	Report particulate sensor data
Power Metrics Enabled	Report power usage

See Telemetry & Sensors for supported sensors and configuration recommendations.

Canned Message Module

Pre-configured messages accessible from the device's physical buttons (for radios with rotary encoders, keypads, or similar input hardware). Define a list of quick-send messages that can be transmitted without a phone connected — ideal for field use.

Setting	Deskripsyon
Enabled	⚠️ Deprecated — current firmware may ignore this toggle
Messages	Newline-separated list of messages
Send Bell	Play bell sound on send
Rotary Encoder	Enable rotary encoder input
Up/Down/Press Pins	GPIO pin assignments for input

Audio Module

Codec2 audio support for low-bandwidth voice communication over the mesh. This is an experimental feature that encodes voice into very small data packets using the Codec2 codec.

Setting	Deskripsyon
Enabled	Activate audio module
Codec2 Rate	Audio quality/bandwidth tradeoff
I2S Word Select	GPIO pin for I2S WS
I2S Data In	GPIO pin for I2S DIN
I2S Data Out	GPIO pin for I2S DOUT

⚠️ Note: Audio requires specific hardware (I2S microphone and speaker). Voice quality is very low-bandwidth — think "understandable radio voice," not phone-call quality.

Remote Hardware Module

GPIO control over the mesh network. Allows a remote node to read or write GPIO pins on another node — useful for activating relays, reading switches, or controlling external hardware from a distance.

Setting	Deskripsyon
Enabled	Activate remote GPIO access
Allow Undefined Pins	Allow access to any GPIO pin (security risk)

⚠️ Warning: Enabling "Allow Undefined Pins" gives remote nodes access to all GPIO pins, which could interfere with the radio's own hardware. Only enable on dedicated GPIO nodes.

Neighbor Info Module

Broadcasts information about directly heard neighbors, enabling mesh topology mapping. Each enabled node periodically shares a list of the other nodes it can hear and their signal quality.

Setting	Deskripsyon
Enabled	Activate neighbor broadcasting
Update Interval (s)	How often to broadcast neighbor list

See Discovery for how to use neighbor data for mesh topology exploration.

Ambient Lighting Module

Controls onboard NeoPixel or other addressable RGB LEDs on supported hardware. Can be used for visual status indicators, notification lights, or decorative effects.

Setting	Deskripsyon
Enabled	Activate LED control
LED State	On, Off, or set specific color
Red / Green / Blue	Individual color channel values (0–255)

Detection Sensor Module

Turns your node into a motion or door sensor alert system. When a GPIO pin detects a state change (motion detected, door opened), the node broadcasts an alert message over the mesh.

Setting	Deskripsyon
Enabled	Activate detection sensor
Monitor Pin	GPIO pin connected to sensor
Detection Triggered High	Trigger when pin goes high (vs. low)
Minimum Broadcast (s)	Minimum time between alert broadcasts
State Broadcast (s)	Periodic state broadcast interval
Send Bell	Include bell character in alerts
Friendly Name	Custom name for this sensor

Paxcounter Module

People counter using WiFi and BLE probe requests. Counts nearby devices by passively listening for probe requests that phones and laptops emit when scanning for networks. Available only on ESP32 devices.

Setting	Deskripsyon
Enabled	Activate people counting
Update Interval (s)	How often to report counts

💡 Tip: Paxcounter is useful for estimating foot traffic at trailheads, event venues, or other locations. Counts are approximate — one person may carry multiple devices.

TAK Module

Team Awareness Kit integration for interoperability with ATAK and WinTAK. See TAK Integration for detailed setup and usage.

Administrasyon

Administrasyon Remote

Remotely configure nodes that share your admin key:

1. Select the target node in the node list.
2. Navigate to Settings for that node.
3. Modify configuration.
4. Tap Save — changes are sent over the mesh.

⚠️ Requires: Admin key configured on both your node and the target node.

Clean Node Database

Removes stale nodes from your local database that haven't been heard in a configurable time window.

Factory Reset

Resets all settings to factory defaults. This cannot be undone.

Rekòmanse

Remotely reboot a connected or administered node.

Panno Debug

View detailed diagnostic information:

• Protocol buffers debug output
• Mesh packet log
• Connection state details

Troubleshooting Remote Admin

• "No response from target node" — the target may be out of range, offline, or have a mismatched admin key. Verify the admin key matches on both nodes.
• Changes not applying — some settings require a reboot to take effect. Try the Reboot action after saving.
• Can't see remote settings — ensure your node has the admin key for the target node. The admin channel is configured automatically when an admin key is set.

Related Topics

• Settings — Radio & User — core radio and user profile settings
• Module configuration reference — detailed module docs on meshtastic.org
• FAQ — common questions on meshtastic.org

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