This project was made for RESOLUTION - WEEK 4 and is basically 10 LEDs that shine in order (regulated by an LM3914) thanks to a potentiometer.

It's a visual experience designed to look like a small lamp, using the logic of the LM3914 driver to control an array of LEDs via a potentiometer. It’s perfect for a desk ornament, offering a fun, interactive lighting effect.

The board does:

Interactive Light Control : The small potentiometer allows you to sequentially activate the 10 LEDs, making the "lamp" brighter or dimmer.

Cool Aesthetics : The LEDs are arranged in a circular pattern to mimic the look of a traditional light bulb, giving it a unique visual style.

USB Powered : It plugs into any standard 5V USB port, making it easy to power at your desk or workstation. You could even create a small 3d print base where you plug this PCB and so you can have a small desk lamp !

I found a video on youtube of the project I wanted to do and found the good wiring diagram to make it :

I took inspiration from it and made my schematic on KiCad :

The traces are like that on purpose to free the space in the middle !

LED Placement : The circular LED array defines the look. Align all 10 LEDs with the correct polarity (Cathode to the IC pins) to ensure they all work.

Component Height : Start with the lower components like resistors and the IC socket before soldering the LEDs, potentiometer, and USB connector.

USB Connector : Place the USB-A connector on the bottom edge of the board so it can plug in easily.

Connect the LAMPED board to a 5V USB power source (computer port or adapter).

Turn the small potentiometer to see the LEDs light up sequentially, increasing or decreasing the overall brightness.