Oppo Find X9 series September launch expected, entire lineup may arrive with ultrasonic fingerprint sensor, periscope camera, and more. By. Anvinraj Valiyathara - Jun 10, 2025. Facebook.

Vivo X300 Pro Mini leak reveals 7,000mAh battery, 6.3-inch flat display, periscope zoom camera, and ultrasonic fingerprint scanner.

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 ...

PIN Code Access: Secure the system with a 6-digit PIN. LCD Display: 16x2 LCD for user interaction and status updates (e.g., "Enter Pin", "Alarm Active", "Motion Detected"). Keypad Input: A 4x4 matrix ...