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bloopernova
on April 27, 2024
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Ask HN: What have you built with ESPHome, ESP8266 ...
You want an NDIR type CO2 sensor. "Nondispersive Infrared Sensor".
Adafruit has lots of really nicely made sensors and MCUs:
https://www.adafruit.com/product/4867
Consider applying for YC's Winter 2026 batch! Applications are open till Nov 10
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Adafruit has lots of really nicely made sensors and MCUs: https://www.adafruit.com/product/4867