The Arduino measures distance and controls the physical LEDs and buzzer. The Windows application connects to the HM-10 over BLE, sends START/STOP commands, displays live distance data, shows the ...

A simple Arduino project that measures the distance between an object and an HC-SR04 ultrasonic sensor and displays the readings in real time on a laptop using the Arduino Serial Monitor. The HC-SR04 ...

I Turned Raspberry Pi into a QR Code based Entry System with Auto ID Cards QR codes are widely used in entry and exit systems for various events to monitor the number of participants and ensure that ...