Hackaday Supercon Talk
FEATURED Hackaday Supercon 2024

Killing Mosquitoes With Drones and Sonar

Our cofounder demonstrated how LeSonar 2's 380-microphones phased array can detect mosquitoes by their micro-doppler signature.

AGPL License Open Source

LeSonar 2: Ultrasonic Phased-Array Devkit

380-microphones phased array sonar with FPGA processing. The sensor behind our mosquito detection system.

Pre-order special: 390€

Regular price: 450€ — Save 60€

Limited to first 100 units only

LeSonar 2 Kit

Key Features

Hardware

  • 380× TDK Invensense T3902 microphones
  • Artix-7 A100T FPGA for signal processing
  • 32× 40kHz ultrasonic emitters

Software

  • Full SDK with examples included
  • Real-time 2D/3D visualization
  • C99 codebase using Raylib/Sokol

Performance

  • 5°×5° beam width for precise targeting
  • Up to 8 meters detection range
  • 3D spatial awareness via phased array

See It In Action

Featured Demo: 3D Sensing

LeSonar 2 sensing its 3D environment in real-time.

2D Localization of Single Emitter

Demonstration of LeSonar 2's ability to precisely locate a single ultrasonic emitter in a 2D space.

2D Echo Energy Visualization

2D slice view showing energy distribution at specific distances.

Small Objects Detection

LeSonar 2 can detect extremely small objects (1mm diameter).

Applications

LeSonar 2 addresses ultrasonic sensing needs across multiple domains, providing high-precision detection capabilities:

Robotics

High-resolution obstacle detection and mapping for autonomous robots.

Entomology

Detect and classify insects based on their microdoppler signature.

3D Scanning

Non-contact measurement and modeling of objects for the industry.

Research

Advanced acoustic research with an open-source codebase.

Leak Detection

Identify and locate air/gas leaks in industrial settings with high precision.

Technical Specifications

1 Hardware Specifications

Microphone Array

  • 380× TDK Invensense T3902 PDM microphones
  • Optimized for 40kHz frequency
  • 16-bit data resolution

Processing

  • Artix-7 A100T FPGA
  • FT601Q USB bridge (up to 200MB/s)
  • 2× general-purpose I/O pins

Emitters

  • 32× 40kHz ultrasonic piezoelectric emitters
  • Directional output pattern
  • Software-configurable pulse patterns

2 Performance Metrics

Active Sonar Mode

  • 5°×5° beam width
  • Range up to 8 meters (target-dependent)
  • 30 frames per second processing rate

Passive Sonar Mode

  • Detection of acoustic sources without emission
  • Capable of detecting small air leaks at 3+ meters
  • Software-configurable frequency filters

Pre-order LeSonar 2 Today

Explore the cutting edge of ultrasonic sensing with our powerful development kit.

Limited Offer: 390€

Regular price: 450€ — First 100 units only

LeSonar 2 Side View