LILYGO T-Embed SI4732 is an ESP32-S3 development board with an AM/FM radio, a TFT display, a rotary encoder, a built-in ...

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 ...

Arduino Projects with Code - Circuit Diagrams & Tutorials Browse 500+ Arduino projects with code and circuit diagrams. From beginner tutorials to advanced Arduino project ideas - all with downloadable ...

A new class of circuit board material combines recyclable vitrimers with liquid metal droplets, enabling circuits that are electrically conductive, self-healing, reconfigurable, and durable. These ...

New recyclable, self-healing circuit board could solve world’s e-waste crisis The board can be readily recycled, it can also heal itself and be reshaped. Updated: Jun 03, 2025 09:04 AM EST ...

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Circuit boards are an integral part of many electronics. They direct the electrical charges needed to operate a wide variety of devices from cell phones to digital watches. Without them, the vast ...

Conductor (copper) foil surface roughness in printed circuit boards (PCBs) is inevitable due to adhesion with laminate dielectrics. Surface roughness limits data rates and frequency range of ...

The combination of microwave-induced pyrolysis and mechanical processing is a promising way to recycle the waste printed circuit boards (WPCBs). In pyrolysis, WPCBs yield an average of 78.6 wt.% solid ...