Thermostat + Si7021 · Issue #404 · RavenSystem/esp-homekit-devices · GitHub
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Si7021-A20 Data Sheet -- I2C Humidity and Temperature Sensor
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Si7021 Temperature and Humidity Sensor Board — PMD Way
Air Humidity Sensor - Si7021 | MySensors - Create your own Connected Home Experience
Overview | Adafruit Si7021 Temperature + Humidity Sensor | Adafruit Learning System
arduino - How to improve humidity sensor (Si7021) accuracy? - Electrical Engineering Stack Exchange
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SI7021-A20 Datasheet(PDF) - Silicon Laboratories
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![Adafruit Si7021 Temperature & Humidity Sensor Breakout Board [STEMMA QT] : ID 3251 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/3251-04.jpg "Adafruit Si7021 Temperature & Humidity Sensor Breakout Board [STEMMA QT] : ID 3251 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits")