Meshtastic-Android/docs/cs-rCZ/user/node-metrics.md

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title	parent	nav_order	last_updated	description	aliases
Node Metrics	User Guide	5	2026-06-16	Telemetry dashboards for each mesh node — device health, environment sensors, air quality, signal quality, power, traceroute, and position history.	metrics telemetry device-metrics signal

Node Metrics

The node detail screen provides comprehensive telemetry and metrics for each node on your mesh.

Metriky zařízení

Basic operating information reported by each node:

Metrický	Popis
Battery Level	Current battery percentage
Napětí	Battery voltage reading
Využití kanálu	Percentage of airtime consumed
Airtime	Transmission time used by this node
Doba provozu	Time since last reboot

Device metrics are displayed as individual cards with trend sparklines showing battery level, voltage, channel utilization, airtime, and uptime over time.

💡 Tip: Tap any metric card to expand it into a full chart with historical data points. Pinch to zoom the time axis.

Metriky prostředí

Environmental sensor data (requires compatible hardware):

Metrický	Sensor Examples
Teplota	BME280, BME680, SHT31
Vlhkost	BME280, BME680, SHT31
Barometrický tlak	BME280, BMP280
Odpor plynu	BME680
IAQ (Air Quality)	BME680

Environment metrics are charted over time for easy trend analysis — temperature, humidity, and pressure each get their own line chart with the measurement unit displayed on the Y axis.

💡 Tip: Environment metrics require a sensor connected to the remote node. Not all nodes report environmental data. See Telemetry & Sensors for a full list of supported sensors.

Air Quality Metrics

Air Quality is a dedicated metrics view for nodes equipped with a particulate-matter and/or CO₂ sensor. It is separate from the BME680 IAQ reading listed under Environment Metrics — IAQ is a single gas-resistance-derived index, while the Air Quality view charts the underlying particulate and CO₂ measurements.

Metrický	Unit	Popis
PM1.0	µg/m³	Particulate matter up to 1.0 micron
PM2.5	µg/m³	Particulate matter up to 2.5 microns
PM10	µg/m³	Particulate matter up to 10 microns
CO₂	ppm	Carbon dioxide concentration

CO₂ readings are color-coded by severity to make air quality easy to read at a glance:

Band	CO₂ Range (ppm)	Color
Silný	< 1000	Zelená
Stuffy	< 2000	Amber
Poor	< 5000	Orange
Unsafe	< 30000	Červená
Evacuate	≥ 30000	Dark red

An air-quality log/metrics button appears on the node detail screen only when the node has reported air-quality telemetry. From the Air Quality view you can:

• Select a time frame for the charts.
• Filter with metric chips — only metrics that have data are shown.
• Refresh / request the latest air-quality telemetry.
• Export to CSV for analysis in a spreadsheet.

💡 Tip: Air Quality metrics require a compatible air-quality sensor on the remote node. If a node has no particulate or CO₂ sensor, the air-quality button won't appear. See Telemetry & Sensors for supported hardware.

Signal Metrics

Radio signal quality information:

Metrický	Popis
SNR	Signal-to-Noise Ratio (higher is better)
RSSI	Received Signal Strength Indicator (closer to 0 is better)
Noise Floor	Local background RF noise in dBm (more negative is quieter)
Hop Count	Number of mesh hops for last message

Signal Quality Reference

SNR Range	Quality
> 10 dB	Excellent
0 to 10 dB	Silný
-10 to 0 dB	Slabý
< -10 dB	Poor

Local Stats from your connected radio are also shown in Signal Quality when available. These logs include noise floor, traffic counters, relay counters, online node counts, and radio uptime. The noise floor chart uses a dashed reference line at -85 dBm to help identify a busy RF environment. Use Request to ask the connected radio for a fresh Local Stats telemetry report, Clear to remove Local Stats logs for that node, and Save to export the visible Local Stats history as CSV.

Metriky napájení

Power management telemetry (requires INA sensor or compatible hardware):

Metrický	Popis
Bus Voltage	Supply voltage
Proud	Power draw in milliamps
Napájení	Calculated wattage

Traceroute

Traceroute shows the path a message takes through the mesh:

1. From the node detail screen, tap Traceroute.
2. The app sends a traceroute request to the target node.
3. Results show each hop with SNR/RSSI values.

Reading Traceroute Results

You → Node A (SNR: 8.5) → Node B (SNR: 5.2) → Target

Each hop represents a relay node that forwarded the message.

Protokol pozic

Historical position data for nodes that share their location:

• GPS coordinates
• Nadm. výška
• Speed (if moving)
• Timestamp for each position report

Informace o sousedech

Shows which nodes a given node can directly hear, useful for understanding mesh topology.

Viewing Metrics

1. Navigate to Nodes.
2. Tap the node you want to inspect.
3. Select the metric category from the detail tabs.

The position tab shows location data for nodes that share GPS:

⚠️ Note: Metrics are only available when they have been reported by the remote node. Metrics update at intervals configured on each node's telemetry settings.

Related Topics

• Nodes — node list, filtering, and sorting
• Telemetry & Sensors — supported sensors and configuration
• Signal Meter — how signal quality is calculated from SNR and RSSI
• Discovery — traceroute details and neighbor info
• Units & Locale — temperature, distance, and speed display formats

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