Raspberry Pi for Wi-Fi Sensing

The Raspberry Pi 3B+ and 4B equipped with Broadcom BCM43455C0 Wi-Fi chip can be used for Wi-Fi sensing applications through the nexmon_csi framework. This makes the Pi an affordable and versatile device for Wi-Fi sensing experiments.

Advantages

Cost-effective: Affordable device for Wi-Fi sensing research
Linux-based: Full Linux operating system for data processing
GPIO access: Interface with external sensors and devices
Community support: Large community and extensive documentation
Flexible deployment: Portable and easy to deploy in various environments
Supported models: Works with Pi 3B+ and 4B with BCM43455C0 Wi-Fi chip

Disadvantages

Single antenna: Most Pi models have only one Wi-Fi antenna
Processing power: Limited compared to dedicated hardware
CSI resolution: Lower resolution than research-grade equipment
Power consumption: May require external power for continuous operation

Use Cases

Raspberry Pi with nexmon_csi is ideal for:

Educational projects: Teaching Wi-Fi sensing concepts
Research prototypes: Academic and research applications
IoT sensing: Integration with broader IoT systems
Home monitoring: DIY smart home sensing solutions
Edge computing: Local processing of sensing data

Getting Started

To set up Wi-Fi sensing on Raspberry Pi:

Install nexmon_csi firmware: Follow the installation guide in the nexmon_csi repository
Configure CSI collection: Set up the device to extract and transmit CSI data
Collect data: Use the provided tools to gather CSI measurements
Process and analyze: Apply signal processing and machine learning techniques

For detailed installation instructions, examples, and technical documentation, visit the nexmon_csi repository .