Arduino is still a good learning platform.

The project represents an electronic switch actuated by the value of the light intensity that excites a photoresistor.

The Pinecil LED Ring adds three LED lights to the Pinecil soldering iron to improve soldering in dark environments. This addition to the Pinecil soldering iron fits just above the soldering tip on the plastic area by friction so no glueing is required. It is easy to assemble and add to the iron using another soldering iron to connect the internals.

This is an incredibly cheap and visually fascinating toy through which we can learn a lot about the behavior and physics of standing waves.

Simple electronic circuit.

A balance indicator for audio systems.

This is a relatively cheap complete Tesla coil driver, so we only need a primary and secondary coil to build functional Tesla coil.

In this tutorial, I will show you guys how I designed and assembled the humidifier circuit into the 3D model.

Let’s take a look at this interesting All-in-one Starter Kit for Pico 2—a kit designed for learning electronics and programming, ideal for beginners and beyond. It allows users to begin their journey with the Pico 2 RP2350 processor in a simple and fun way. The kit comes in a small suitcase measuring 195 × 170 × 46 mm. Inside, there’s a single board equipped with as many as 17 sensors or modules serving various functions. It also features a 2.4″ full-color TFT touchscreen.

A type of indicator circuit for batteries

Special level-shifting rs232 cable needed for Brother FB-100 or Tandy Portable Disk Drive

Your pictures don’t just sit there anymore — they speak. Add short captions to your family album, and turn them into natural voice

Using this electronic circuit, a very simple pulse generator can be made, using a 4066 circuit.

Monitor for equal voltage at the terminals of two 12V batteries.