We've already covered the TM1637 display as an interactive up/down counter with button controls and EEPROM storage. This project uses the same display…
The BH1750 measures light the way a proper light meter does — in lux, the actual unit of illumination — rather than the vague, uncalibrated brightness…
The Sharp GP2Y0A21YK0F measures distance by optical triangulation: reflected infrared light moves across a position-sensitive detector with target angle…
The ADXL345 is a three-axis accelerometer with ±2, ±4, ±8, and ±16 g ranges and I2C or SPI communication. At rest it measures the gravity component along…