Full weather. Native mesh. No cloud required.
D2 Mesh pairs the WS1300 outdoor station with the WG1200 console for real weather measurement beyond reliable internet.
The Open Edition is coming to Crowd Supply. Wind, rain, temperature, humidity, pressure, solar illuminance, and UV index — delivered over long-range, multi-hop LoRa mesh with zero cloud dependency and no mandatory subscription.
Everything in the D2 Mesh Suite
The complete off-grid system: all-in-one meteorological sensor array, indoor touchscreen gateway, hardware crypto chip, remote battery holder, and rapid-install mounting kit.
Develop, flash and diagnose over BLE.
WS1300 firmware can be developed and flashed over Bluetooth LE, while the same tool exposes configuration, live telemetry and device diagnostics. The short code-test-observe loop makes AI-assisted firmware development practical without repeatedly opening the enclosure or moving the station back to a bench.
Live Weather Dashboard
Live local weather at a glance, directly on the touchscreen without depending on a cloud dashboard.
Meteorological array
All-in-one sensor suite with wind cups, wind vane, tipping bucket, radiation shield, solar panel, supercapacitor, Nordic nRF5340 dual-core MCU, Semtech SX1262 LoRa, u-blox MAX-M10S GNSS, and 6-axis IMU.
Indoor touchscreen gateway
3.95" capacitive RGB touchscreen (480×480), ESP32-S3 processor, Semtech SX1262 radio, 2.4 GHz Wi-Fi, BLE, Bosch BMP390 indoor pressure sensor, and MicroSD card slot for local historical charting.
Mast-Level Maintenance
External 6×AA holder on a 2 m IPX6 4-pin cable. Keep batteries accessible at ground level. Features hardware power cycle button, supercapacitor discharge button, and open 4-pin solar/battery interface.
Rapid installation kit
Galvanized steel U-bolts, backplate bracket, mounting nuts, metal zip ties, bird spikes, and assembly wrench for rigid attachment to standard 32–50 mm (1.25"–2") outdoor poles.
- • WS1300 outdoor meteorological sensor array with solar panel
- • WG1200 indoor 3.95" touchscreen gateway & Wi-Fi bridge
- • Remote 6×AA battery holder extension with 2 m IPX6 cable
- • Bird spike set & mounting bracket hardware (U-bolts, wrench)
- • USB Type-C cable for console connection
- • AA 1.5V Batteries: Non-rechargeable (2× for station body or 2–6× for remote holder; Lithium AA recommended for sub-zero climates)
- • Mounting Pole / Mast: Standard 32–50 mm (1.25"–2.0") metal or rigid composite mast
- • USB-C Power Supply: Standard 5V 1A USB-A/C wall power adapter for the indoor console
Deployment scenarios
Built for Places Where Internet Fails
D2 Mesh solves the two hardest problems in remote weather: long-range low-power telemetry and giving permanent mesh sites a useful, continuous physical job.
Remote Ridgelines & Multi-Hop Mesh
A WS1300 on a ridge or forest edge broadcasts continuous wind, rain, and pressure. Packet hops across intermediate solar repeaters to reach town nodes kilometers away with zero cellular coverage.
Private Acreage & Farm Microclimates
For vineyards, orchards, and ranches beyond cellular reach. Monitor frost warnings and soil moisture conditions. Station transmits over direct LoRa to the homestead console with 100% data sovereignty.
Wind-Sports, Marinas & Ridge Launches
Paragliding clubs, sailing schools, and kitesurfing spots avoid ongoing cellular SIM subscription fees. D2 Mesh broadcasts live 2-second wind gusts directly to pilots at the takeoff and landing zones.
Self-Hosting & Home Assistant
Automate smart home HVAC, storm shutters, and irrigation natively via local MQTT broker (Port 1883) and REST endpoints without trusting external vendor clouds or risking internet downtime.
Meteorological payload
Real Instruments with Published Accuracy
Calibrated physical and environmental sensors engineered for multi-season outdoor durability across extreme temperatures.
| Measurement | Range | Accuracy | Resolution | Sampling Cadence |
|---|---|---|---|---|
| Air Temperature | −40 °C to +60 °C (−40 °F to +140 °F) | ±0.2 °C (typical) / ±1 °C | 0.1 °C | 20 s |
| Relative Humidity | 1 % to 99 % RH | ±2 % RH (typical) / ±5 % | 1 % RH | 20 s |
| Barometric Pressure | 300 to 1,100 hPa | ±0.5 hPa | 0.1 hPa | 20 s |
| Wind Speed & Gusts | 0 to 50 m/s (0 to 180 km/h) | ±0.5 m/s (< 5 m/s); ±10 % (> 5 m/s) | 0.1 m/s | 2 s continuous sample |
| Wind Direction | 0° to 359° (360° continuous) | ±3° (typical) / ±10° | 1° | 2 s continuous sample |
| Precipitation (Tipping Bucket) | 0 to 360 mm/h | ±10 % | 0.3 mm (per tip) | Instantaneous pulse count |
| Solar Illuminance | 0 to 200 klux | ±15 % | 0.1 klux | 20 s |
| UV Index | 1 to 15 | ±1 | 1 | 20 s |
Hall-Effect Wind Vane
Wind direction is measured using magnetic Hall-effect solid-state sensors with zero wiper contacts to corrode, drift, or wear down in dusty and maritime environments.
Zero-Loss Pulse Counting
A dedicated ultra-low-power sensor co-processor handles wind cup revolutions and rain bucket tips continuously, allowing the main dual-core MCU to sleep between transmissions without missing a single tip.
Swappable sensor module
The temperature, humidity, and pressure sensors reside on a user-replaceable module inside the radiation shield, allowing quick sensor replacement after years in the field without replacing the station body.
Power engineering
Solar-Assisted with Ground-Level Servicing
Engineered to maintain uptime through harsh winter freezes and multi-week low-light periods.
Multi-Tier Power Architecture
- 1. Integrated Solar Harvesting: Built-in 6.5V / 60mA monocrystalline solar panel powers daytime measurements and buffers internal capacitance.
- 2. Supercapacitor RF Buffer: Absorbs high-current LoRa transmit pulses, preventing voltage sag on battery banks during transmission.
- 3. 2.4V Low-Dropout Boost Converter: Runs the entire station down to 2.4V input voltage, extracting maximum usable energy from nearly exhausted cells.
- 4. Adaptive Transmission Cadence: Transmission interval automatically scales back if battery voltage drops during extended cloudy spells, guaranteeing zero system blackouts.
Remote 6×AA Battery Case with Maintenance Interface
Mount the station high on a mast where wind and sunlight are optimal, while mounting the IPX6 battery enclosure at chest height on the pole.
Full ground-level power cycle button without unmounting from the mast.
Drains all supercapacitors to 0V for a guaranteed cold boot troubleshooting cycle.
Install High, Service from the Ground: The outdoor array mounts high on the mast for undisturbed wind measurements, while the battery casing mounts at shoulder height.
Mesh Architecture & Airtime
Responsible Mesh Citizenship
A commercial device broadcasting on shared public sub-GHz channels must be quiet and respectful of channel capacity.
Direct Station-to-Console Link
The outdoor station transmits low-power WeatherXM packets directly to the indoor WG1200 console, which bridges data to your local Wi-Fi and Home Assistant.
Multi-Hop Meshtastic Broadcast
The station broadcasts standard Environment Telemetry onto the public LongFast channel, hopping across community repeaters to reach mobile clients kilometers away.
Channel Airtime & Transmission Budget
Measured on Semtech SX1262 · LoRa LongFast default preset · Random jitter 1–5s
| Packet Type | Contents | Default Cadence | Payload Size | Airtime | Channel Duty Cycle |
|---|---|---|---|---|---|
| Environment Telemetry | Temp, RH, Baro, Wind, Rain, Solar, UV | Every 10–30 min | ~42 bytes | ~280 ms | < 0.05 % |
| Node Info | Device name, SENSOR role, public key | 2× interval | ~64 bytes | ~390 ms | < 0.04 % |
| Device Diagnostics | Battery voltage, supercap state, uptime | 3× interval | ~28 bytes | ~190 ms | < 0.02 % |
| Position Attestation | u-blox GNSS coordinates & timestamp | 6× interval | ~32 bytes | ~210 ms | < 0.01 % |
The node advertises is_unmessagable,
registering as a dedicated read-only sensor to stay out of chat
routing tables. Transmissions use randomized 1–5s jitter and
configurable hop limits (default hop_limit 1–2).
One Firmware. Three Operating Protocols.
Every D2 Mesh station ships with a single unified firmware image capable of operating in three distinct wireless protocol modes, switchable on-the-fly over Bluetooth LE or LoRa commands without reflashing.
Native WeatherXM Protocol
Ultra-low power, high-cadence local telemetry designed for maximum station battery longevity and direct cryptographic communication with the WG1200 touchscreen console.
✓ Fast local updates
Meshtastic sensor node
Broadcasts standard Environment Telemetry onto the public LongFast mesh channel encrypted with the default public key. Unmodified T-Beam, Heltec, and RAK nodes see it automatically.
✓ No gateway required
MeshCore Sensor Node
Lightweight open-packet datagram protocol tracking the open meshcore-dev/MeshCore core stack for advanced telemetry routers and research platforms.
✓ CLI & Datagram oriented
Three Ways to Configure · Zero Cloud in the Loop
Competitive landscape
Where D2 Mesh Fits
Comparing DIY mesh builds, standard LoRaWAN industrial sensors, and the WeatherXM D2 Mesh platform.
| Capability | DIY Mesh Sensor | LoRaWAN Weather Station | WeatherXM D2 Mesh |
|---|---|---|---|
| Wind Speed / Gusts / Direction | Rarely (Requires custom wiring) | Yes | Yes (±0.5 m/s, Hall-effect 360°) |
| Tipping-Bucket Rain Gauge | Rarely | Yes | Yes (0.3 mm, on-device buffer) |
| Published Calibration Specs | No | Yes | Yes (Full published datasheet) |
| Direct Mesh Without Gateway | Yes | No (Requires LoRaWAN Gateway) | Yes (Meshtastic & MeshCore) |
| Zero Vendor Cloud Dependency | Yes | No (Requires Network Server) | Yes (Local REST & MQTT) |
| External Antenna Connectors | Sometimes | Rarely | Yes (U.FL for LoRa & GNSS) |
| Per-Packet Cryptographic Signing | No | Network layer only | Yes (Hardware ECDSA P-256) |
| Mass-Manufactured & Certified | No | Yes | Yes (FCC, CE, RoHS certified) |
| Soldering Required | Yes | No | No (Turnkey kit) |
Local-First Architecture
Your Hardware. Your Data.
D2 Mesh connects directly to Home Assistant, Node-RED, Prometheus, or any local automation server without sending data to external clouds.
- SHIPPING Local ESP32 Web Console & Historical Charts
- SHIPPING Local REST JSON API (
/api/v1/telemetry) - SHIPPING Direct MQTT Broker Stream (Port 1883)
- SHIPPING Home Assistant MQTT Auto-Discovery
- SHIPPING MicroSD 5-Minute Aggregate Data Logging
- OPT-IN WeatherXM Global Network Rewards & Explorer
{
"topic": "weatherxm/d2/ws1300_0294/telemetry",
"payload": {
"timestamp": 1788126000,
"temperature_c": 21.4,
"humidity_pct": 58,
"pressure_hpa": 1013.2,
"wind_speed_ms": 4.2,
"wind_gust_ms": 7.1,
"wind_direction_deg": 284,
"rain_1h_mm": 0.0,
"rain_24h_mm": 2.8,
"solar_lux": 64200,
"uv_index": 5,
"battery_mv": 3280,
"mesh": {
"hops": 1,
"rssi_dbm": -82,
"snr_db": 9.4
}
}
}Indoor touchscreen console UI showcase
Real-time local display powered by ESP32-S3 · 480×480 capacitive RGB touchscreen
Continuous wind speed, gusts, temp, pressure, rain, and solar telemetry.
On-device 24-hour and 7-day trend graphs rendered directly on the display.
Configure Meshtastic, MeshCore, radio channels, hop limits, and RF power.
Stores years of 5-minute telemetry logs on removable microSD storage.
Open source commitment
The Point is You Can Take It Apart
Open source software, documented wire protocols, planned open hardware release, and a genuine one-step bootloader unlock path.
Genuinely unlockable
A documented, one-step bootloader unlock allows flashing community-modified firmware — optionally replacing the WeatherXM functionality entirely with custom Meshtastic repeaters or private stacks.
Open packet schema
Zero-dependency Protobuf wire encoder and reference decoders published publicly. No proprietary payload wrappers or obfuscated radio packets.
Planned open licensing
Board schematics, PCB layout files, mechanical drawings, and Bill of Materials (BOM) are planned for publication under open licenses (such as CERN-OHL) alongside campaign delivery.
Zero-Cloud Configuration & Live Bench Diagnostics
360° Mechanical Engineering Gallery
High-resolution studio photography of the WS1300 outdoor sensor suite, radiation louver shield, aerodynamic wind cups, and precision tipping rain bucket.
Frequently asked questions
D2 questions.
Can I order it now?
Not yet. The Crowd Supply project is in its coming-soon phase — subscribe there to hear when the campaign opens.
Do I have to join the WeatherXM Network?
No. Local operation is fully independent of Network participation.
Is D2 a satellite station?
No. D2 uses terrestrial local and mesh links. H2-LEO is the separate satellite-connectivity development.
Will it work with my existing mesh?
Usually, yes. Radio region, protocol and device role are all configurable. Tell us your intended setup and we will confirm the right path before you commit to it.
Follow the D2 Mesh Launch
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