Learn to build an RFID based attendance system using Arduino with step-by-step instructions, circuit diagrams, and complete code. This $35 DIY project replaces expensive commercial systems with ...

1. Upload the provided code to your ESP32 microcontroller. 2. Connect the components as per the wiring diagram. 3. Power on the circuit. 4. Press the push button to switch between voltage and current ...

This paper proposed a fully LTPS-TFT-based bi-directional biomedical pixel interface with integrated a high linearity stimulator and a high-performance bio-potential sensing front-end circuit to ...