8051-Based Dual Ultrasonic People Counter with LCD Display - DK080825/customer_counting_8051based. Skip to content. Navigation Menu Toggle navigation. Sign in Appearance settings. ... Two HC-SR04 ...

This project demonstrates how to use an ESP32 microcontroller to measure the distance to an object using an ultrasonic sensor and display the measured distance on a 16x2 LCD. The project is designed ...

In-display fingerprint scanners use a camera to take an image of the finger, and OLED panels allow light to pass through the display and reach the sensor. In contrast, LCD panels do not transmit ...