By Danya Gainor, CNN (CNN) — Mark Bruley’s phone went off at 3:45 a.m. on June 14 — the loud ring shattering the quiet darkness surrounding the Brooklyn Park police chief’s home in Minnesota.

By Ben Morse, CNN (CNN) — Paul Craig has told fans not to “persecute” Rodolfo Bellato after the pair’s UFC fight on Saturday ended in a controversial no contest due to an illegal upkick ...

By Kareem Khadder, Oren Liebermann, Mostafa Salem, Tamar Michaelis and Abbas Al Lawati, CNN (CNN) — Israel has said it will “not cooperate” with ...

PID-based one-axis ball balancing robot using Arduino. Uses an ultrasonic sensor and servo motor to stabilize a ball at a target distance. Real-time tuning of Kp, Ki, Kd via Serial. Includes stability ...

Carbon nanotubes (CNTs) have emerged as a versatile nanomaterial with unique structural, electronic, and mechanical properties that offer transformative potential in both drug delivery and sensor ...

We present a low-power gas sensor design based on a capacitive micromachined ultrasonic transducer (CMUT), for use on self-powered wearable platforms. Earlier a CMUT-based sensor, with 70-mW power ...

📦 Requirements: ESP32 development board Arduino IDE or PlatformIO FreeRTOS (comes with ESP32 Arduino core) LED (optional, if using built-in LED on GPIO 0) About. This project showcases a basic ...