Comment by yoavm
How about if I want to monitor the apartment as a whole? Would 100m2 be too much for one sensor to handle?
How about if I want to monitor the apartment as a whole? Would 100m2 be too much for one sensor to handle?
The price difference can vary wildly by region, but €10 is still super cheap compared to a dedicated presence sensor!
Regarding the chip recommendation, it’s a classic trade-off:
ESP32-S3: This is what I mainly recommend today. It gives you more raw processing power (dual-core), which is great for managing the OS, MQTT, and the CSI analysis without hiccups.
ESP32-C6: I just ordered a C6 myself to run extensive tests! The C6 might have a superior quality Wi-Fi module and better internal CSI extraction capabilities due to hardware improvements.
Would you recommend multiple routers for this case, since the distance from sensor to router is important?
It really depends on the environment: wall materials, interference, signal strength, and even temperature and humidity all play a role. Honestly, 100 m² is probably too large for a single sensor to cover reliably.
That said, ESP32 boards are very inexpensive, you can find them online for around €1 or even less.