J.Fi
Reliable links of up to 500 m on the 2.4 GHz WiFi band, from 1:1 all the way to N:N. Built for drone swarms and robot fleets.

J.Fi uses the 2.4 GHz WiFi band to deliver robust, reliable communication between many devices. What sets it apart is N:N communication.
Flexible network topologies
From simple 1:1 setups to 1:N and N:N, J.Fi adapts to your needs. Time slot-based response delay management keeps communication collision-free even in crowded networks — ideal for drone swarms and robotic fleets.

Easy to use
- Simple operation — pair and switch modes with two buttons
- Status at a glance — LED indicators
- Easy configuration — from any web browser, no extra software
Specifications
| Frequency | 2.4 GHz WiFi |
|---|---|
| Speed | 250 Kbps – 11 Mbps (adjustable) |
| Range | Up to 500 m (varies with environment) |
| Payload | Up to 1024 bytes |
| Topologies | 1:1, 1:N, N:N |
| Ports | 2× UART (JST 6-pin), 1× USB (Micro 5-pin) |
| Size · weight | 45 × 35 × 10 mm, 8 g |
| Input voltage | 5V |
| Certification | KC Wireless + Wireless EMC (ESP32-WROOM-32UE) |