Gravity: PWM Infrared Carbon Dioxide Sensor (400-5000 ppm) Category_Tools This small

This small

current will flow from OUTB to OUTA

The resistance values ​​(in Ohms) are 249

Break Command AddressH AddressM AddressL Date Check Sum

Gravity: PWM Infrared Carbon Dioxide Sensor (400-5000 ppm) Category_Tools This smallThe concentration of carbon dioxide (0. 03% usually) is related to daily life. Recently, theres a study showing that the atmospheric CO2 content has reached 0. 0385% (385 ppm) which is the highest value since 2. 1 million years. The raise of atmospheric CO2 content to some extent results in global climate change. How to accurately measure carbon dioxide gas concentration is becoming a universal research topic. DFRobot released its latest high