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yoavmyesterday at 10:39 PM1 replyview on HN

Is the ESP-S3 your recommendation? Or should one look into the ESP-C6 / another model? The prices I'm seeing here in Sweden are more around €10 rather than €1, but I guess that's still much less than the average presence detector.


Replies

francescopaceyesterday at 11:34 PM

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.