Rather than tapping into the line and measuring the gas directly ... When the dial passes a certain point, the sensor alerts an Arduino that one revolution has occurred. Once the Arduino has ...

With a suitable sensor in hand, the project really boils down to building up an interface and enclosure for it. [Eunjae] is using an Arduino Nano, a 128×64 OLED screen, and a battery inside of a ...

This array utilizes a simple yet ingenious principle: when gas molecules enter the sensor, they diffuse into specific polymers, causing them to swell slightly. This swelling generates mechanical ...