ESP32 CSI hardware for RuView
Everything you need to start collecting WiFi CSI data, from beginner boards to multi-node lab setups.
| Board | CSI Support | Best For | Price Range | Difficulty |
|---|---|---|---|---|
| ESP32-WROOM-32 | Yes | Beginner CSI experiments | $5–$8 | Easy |
| ESP32-S3-DevKitC | Yes (AI accelerated) | Edge AI inference | $10–$15 | Easy |
| ESP32-S2 | Limited | Low-power single radio | $6–$9 | Medium |
| ESP32-C3 | Partial | Compact projects | $4–$7 | Medium |
| Pair of ESP32 + Router | Yes | Tx/Rx multi-node setup | $25–$40 | Medium |
ESP32 Boards for CSI Projects
The classic ESP32-WROOM is the cheapest, most documented entry point. Pair one as transmitter and one as receiver for the best learning experience.
ESP32-S3 Support
ESP32-S3 adds vector instructions and more RAM — ideal for running quantized AI models directly on-device.
WiFi CSI Hardware Requirements
You need a chipset that exposes CSI in firmware (ESP-IDF supports this on most ESP32 variants), plus a stable WiFi access point.
Router / Access Point Setup
Use a fixed channel (1, 6, or 11 on 2.4 GHz). Avoid heavy traffic during baseline data capture.
Multi-Node Sensing Setup
Place 2–4 ESP32 nodes around the sensing area. Cross-link CSI streams to triangulate motion.
Recommended Beginner Setup
1× ESP32-WROOM (receiver) + 1× ESP32-WROOM (transmitter) + a home router. Total cost under $20.
Advanced Lab Setup
4× ESP32-S3 nodes, a dedicated 2.4 GHz AP, and a small Linux server running the RuView inference pipeline.
Pakistan / India Hardware Buying Guide
ESP32 boards are widely available on local marketplaces. Look for genuine Espressif-branded modules to avoid CSI-firmware issues.