AntiHunter DIGI Node PCB

Affordable perimeter or standalone defense platform

• Featured in Seeed Studio's Best 20 XIAO Projects of 2025.
• Distributed Perimeter Defense & Wireless Threat Monitoring — bare board for builders, source your own parts.
• Skill level: beginner-intermediate: through-hole soldering, module flashing. Full illustrated assembly manual provided.
• New to hardware? The assembled node and full parts kit include everything. This listing is the PCB only.
• New nodes in the works: Add power to the AntiHunter ecosystem with upcoming esp32-c5 RADAR and SDR nodes. The project is ever-evolving, made by professionals across the globe. Updated to add new features regularly, all integrated to work together.

What is it?

The 2.4GHz DIGI Node PCB for AntiHunter, an open-source distributed perimeter defense platform. One node works standalone with its own WiFi AP or fully headless over LoRa mesh. Three or more nodes unlock distributed trilateration and coordinated perimeter coverage over kilometers. Connect the open-source AntiHunter Command Center for live maps, geofencing, device tracking, and multi-site federation.

No subscriptions. No cloud dependency. No recurring fees.

Who is this for?

• Know who's around before they knock — learns which devices belong, alerts on new or vanished ones.
• Catch drones before they catch you — Remote ID detection with pilot location and telemetry.
• See through the tricks — persistent identity across MAC randomization via behavioral fingerprinting.
• Hunt the hunters — deauth, floods, evil-twin, and tool identification via Sentinel.
• Cover ground without infrastructure — LoRa mesh over kilometers; headless operation; TAK integration via C2.
• Protect what you've collected — tamper-triggered or radio wipe- then appears to be a weather-station

Node firmware

• WiFi + BLE scanning with target watchlists (MAC/OUI/SSID) and RF presets
• Sentinel Counterintel — passive attacker-tool detection (deauth/beacon/auth/assoc floods, SAE DoS, karma, evil-twin, probe floods, handshake capture); per-detector toggles (beta)
• Baseline anomaly detection — up to 100K devices tracked on SD
• MAC randomization correlation, persistent across reboots: turns rotating addresses into an ID you can use
• *Drone Remote ID *(ASTM F3411 + French format) with pilot location and mesh alerts
• Multi-node RSSI trilateration, Kalman-filtered, GPS-weighted (in-development)
• Tamper-triggered secure destruction, remote authenticated mesh wipe, post-wipe obfuscation
• Every mode controllable over LoRa mesh — broadcast or per-node

Command Center

• Live map with node tracking, device trails, geofence polygons, drone flightpaths
• FAA registry lookup and Friendly/Neutral/Hostile classification
• Breach alarms, alert rules, scheduling
  
• MQTT multi-site federation and TAK/CoT (ATAK/WinTAK)
  
• RBAC, 2FA, webhooks, audit trail, CSV/GeoJSON export.

View the full capability rundown on the [main node listing](LINK) or GitHub repo

PCB specifications

What's included

One AntiHunter DIGI Node PCB.

You supply

CORE COMPONENTS

• 1x Seeed Studio XIAO ESP32-S3 (8 MB flash min)
• 1x Heltec WiFi LoRa 32 V3.2 (T114 compatible, V3.2 preferred)
• 1x ATGM336H GPS module
• 1x Micro SD card adapter module (SPI)
• 1x SD card (FAT32, 16 GB recommended)
• 1x SW-420 vibration sensor
• 1x DS3231 RTC module

FULL BUILD — CONNECTORS & FASTENERS

• 6x JST 2.54 2-pin terminals (2.0 mm JST also fits)
• 10x M3 mounting inserts
• 2x M3x15 mm brass standoffs
• 1x 1/4" tripod insert
• 1x JST power male cable (switch to board)
• 8x M3 flat-top screws (enclosure)
• 6x M3 screws (PCB and power board)

ANTENNA & CABLING

• 3x U.FL→SMA pigtails (SMA bulkhead, 10–20 cm)
• 1x 6 dBi 2.4 GHz antenna (WiFi/BLE)
• 1x 6 dBi LoRa antenna (868 MHz EU / 915 MHz US / 923 MHz Asia)
• 1x GNSS helix antenna

POWER & THERMAL

• 1x 30 mm 5V fan (JST)
• 1x 3-pin mini on/off switch
• 1x Type-C 15W 3A 5V UPS (2S 18650 step-up module, 88x41x22 mm)

ENCLOSURE

• Weatherproof enclosure (3D-printable cases, seals and mounts in repo)

We've made sourcing parts easy: full bill of materials with links & images

Important notes

• PCB only. Modules and components not included
• Requires regulated 5V. Do not power with unregulated batteries. Use the UPS module in the BOM, or USB.
• Lawful use only. You are responsible for compliance with all applicable laws regarding wireless scanning, data collection, and spectrum use. See the legal disclaimer.

Resources

Build it:

• Getting Started: DIGI Node PCB
• Assembly Manual (PDF)
• PCB welcome letter
• Parts Links & Images
• Enclosures + Seals (STL)

Run it:

• Node Firmware ( browser flasher + CLI + PlatformIO)
• Command Center C2

Ships to US via USPS Ground Advantage/Priority Mail. PCBs are wrapped and sealed (tamper evident), hex paper padded, shipped in bubble mailer. Orders of 6+ ship (boxed) via USPS Priority Mail.

Typical dispatch: 1-3 business days when in stock. Tracking + $100 insurance (US/USPS). **NOTE: USPS WILL NOT DELIVER TO UNKNOWN NAMES AT ADDRESSES AND RETURNS TO SENDER.**