This is a custom version of the Hunter game with 10 LED and LCD display to show the score, followed by various sound effects.

Recreate a Philips Hue-style smart lamp using ESP32, RGB LEDs, and separate warm/cool white strips. Fully controllable via IR, rotary encoder, and Home Assistant – with effects, brightness, and presets powered by ESPHome.

SSTC based on LabCoatz version, with adjustable Schmitt trigger oscillator. With a properly adjusted device, the length of the scattered spark exceeds 20 cm.

ESP-LED-03 is an Audio-Reactive WLED Controller based on ESP32-S3 Supermini. It supports 5-24V Led Strips, has wifi, bluetooth, IR control, Light sensor, microphone for audio-reactive (optional) and more!

This is a 10 channel spectrum analyzer with a antique look that can easily be modified to fit a steampunk NIXIE theme.

Simple Cute Dog Keychain with LED's

Created a small "PCB Christmas Forest" which is going to light up my study table this Christmas.

This small 20W RGB video light can be fully 3D printed and is very simple to operate. You can switch on the light by pressing the button on the side once. By rotating the encoder, we can cycle through the hue value. After pushing the encoder, we can switch to the brightness control mode. We can adjust the brightness of the LED by rotating the encoder. If we push the encoder button again, we can switch back to the hue control mode. It's a one-knob operation.

This is a light bulb indicator kit that blinks with music.

Christmas decoration built on 18 LED diodes.

Due to Christmas celebrations elecrow make an offer for PCB with Christmas theme

Diyas are the heart of major Indian festivals, most notably Diwali, the "Festival of Lights." Lighting rows of diyas during Diwali symbolizes the victory of Lord Rama over Ravana and the welcoming of prosperity and Godess Lakshmi (the goddess of wealth). Tired of oily Diyas? In this tutorial, I will show you guys how I created these super simple 3D printed Diwali Diyas which are safe, non greasy, reusable, easy to make and will last forever.

Christmas star built on 18 LED diodes.

Keychain with 4 ws2812b-2020 LEDs, MCU ch32v003 and USB

Wire up your RGBW LED strip to Wi‑Fi with ESPHome! This 12 V controller drives four PWM channels—R, G, B, and W—using a simple ESP8266 board. Ideal for Home Assistant, perfect for ambient lighting, and totally local.