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A BCD code is applied to the 4 inputs
Square wave
In this IC
W1209 Setting Chart
7Semi SCD40 CO2 Temperature Humidity Sensor Breakout Mini Module ATAL Packages A BCD code is applied7Semi SCD40 CO2 Temperature Humidity Sensor Breakout Mini Module The 7Semi SCD40 CO2 Temperature Humidity Sensor Breakout Mini Module is a compact environmental sensing solution designed for accurate air quality, temperature, and humidity monitoring in embedded and IoT applications. Powered by the SCD40 sensor IC, the module delivers reliable CO2 concentration measurements along with temperature and humidity sensing, making it suitable for smart home
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