BMV080 is a low-power, low-cost PM1, PM2.5, and PM10 sensor module with I2C and SPI interfaces that sells for just $29.90.
A driver’s excitement about his recent truck purchase turned to frustration when a check engine […] ...
Engine oil turns black from a combination of combustion byproducts, heat oxidation, and detergent additives suspending carbon particles in the fluid. Black oil is not automatically a sign of a problem ...
volatile boolean Pulse = false; // "True" when User's live heartbeat is detected. "False" when not a "live beat". volatile boolean QS = false; // becomes true when Arduoino finds a beat. static ...