Color-changing mood rings, forehead fever strips and car-shade indicators all change hues as they warm and cool, thanks to a ...
How do you measure the inside of a cave? You could do a bunch of hard work with classic surveying gear… or you could just use a laser scanner. [9nl] did the latter, with a scanning rig of ...
Key Components • MPU-6050 Sensor (Accelerometer + Gyroscope) • GSM Module (SIM800L) for SMS alerts • GPS Module for location tracking • Microcontroller (Arduino/ESP32) • Battery and Power Management ...
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