As per the leak, the Vivo X300 Pro Mini may feature a 6.3-inch flat OLED screen with a 1.5K resolution and an ultrasonic in-screen fingerprint sensor.

An exceptionally sensitive and photothermally tunable polymer microbubble is fabricated at the fiber tip for enhanced ultrasonic detection. A modified acrylate adhesive (MAA) is applied to the end ...

This paper approaches a Verilog implementation for distance estimation using an external sensor, HC-SR04 module. The method involves the use of an FPGA with the Nexys4 DDR board. Other implementations ...

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HAL-based driver for the HC-SR04 ultrasonic sensor, implemented on an STM32F446RE Nucleo board. Key features include temperature-compensated distance calculation, pulse width validation with hardware ...