J.Fi
Wireless link for drones and robots
J.Fi is a compact module for drones, robots, and IoT devices. It runs on the 2.4GHz WiFi band and supports N:N networks, in which every device can send data to every other device.
Why J.Fi?
Range and speed
J.Fi reaches up to 1 km, depending on the environment. The data rate can be set from 250Kbps to 11Mbps, and each payload can be up to 1024 bytes.
Network topologies
J.Fi supports 1:1, 1:N, and N:N networks. Time slot-based response delay management prevents collisions in large networks such as drone swarms and robot fleets.
Setup
Two buttons handle pairing and mode switching, and LEDs show the device status. Network settings are configured in a web browser.
Applications
- Coordinating large groups of UAVs
- Sharing data across robot networks
- Linking IoT sensors and devices
Specifications
| Wireless | |
| Frequency band | 2.4GHz WiFi |
| Speed | 250Kbps to 11Mbps (adjustable) |
| Range | Up to 1 km (depends on environment) |
| Payload | Up to 1024 bytes |
| Network | |
| Topologies | 1:1, 1:N, N:N |
| Collision management | Time slot-based response delay |
| Interface | |
| Buttons | 2 (pairing, mode switching) |
| LED indicators | Real-time status |
| Configuration | Web browser |
| Hardware | |
| Certification | KC Wireless and Wireless EMC (ESP32-WROOM-32UE) |
| Memory | 4MB flash |
| Ports | UART × 2 (JST 6-pin) USB × 1 (Micro 5-pin) |
| Dimensions | 45 × 35 × 10 mm, four 3Φ mounting holes |
| Input voltage | 5V |
| Weight | 8 g |
Resources
Get in touch
J.Fi is sold at DeviceMart. For anything else, contact [email protected].