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PowerPD — ESP32 USB-C PD/PPS Programmable Power Supply

PowerPD is a compact USB-C PD/PPS power supply and PD analyzer built around an ESP32 microcontroller, an AP33772S USB-C PD sink controller,

June 01, 2026 by Raushan kumar

Build an IoT Smart Grid with Arduino UNO R4

Real-time energy monitoring with Arduino UNO R4 WiFi, PZEM-004T, OLED, and ThingSpeak

May 28, 2026 by Rinme Tom

Low-Cost Offline Voice Recognition with SU-03T

Build an offline voice-controlled system using the SU-03T voice module without cloud processing

May 28, 2026 by Rinme Tom

ESP32-CAM WhatsApp Image Alert System

Send Real-Time Images to WhatsApp Using ESP32-CAM and Wi-Fi

May 28, 2026 by Rinme Tom

Simple Optocoupler Tester Circuit

Quickly check 4-pin and 6-pin optocouplers with a pocket-sized tester and two LEDs.

May 16, 2026 by Rinme Tom

Arduino Handheld Game Console

Build a pocket-sized Arduino gaming console with a 128×64 OLED display and 10 classic retro games.

May 16, 2026 by Rinme Tom

ESP32 Analog VU Meter – Smooth Needle, Real Audio Response (DIY Build)

In this project, I built a fully functional analog-style VU meter using an CrowPanel 3.5"-HMI ESP32 display, and LVGL.

May 16, 2026 by Mirko Pavleski

ESP Claw with DFRobot ESP32 P4 Dev Kit

Will guide you to implement ESP Claw on DFRobot ESP32 P4 Dev Kit and how to use the interfaces.

May 12, 2026 by CETECH CETECH

Professional grade Smart Lock with ESP32, BLE and Android App Control

By integrating advanced sensors and optimizing the power management of the ESP32, I've created a DIY smart lock that is both reliable and energy-efficient.

April 25, 2026 by Mirko Pavleski

Power Failure Alarm

Why this project : I wanted to have an alarm for major storms that cause power outages lasting more than 2.5 hours. I'll only use it while I'm sleeping. But the delay before the alarm sounds can be easily modified in the Arduino Nano code.

April 15, 2026 by Andre Larochelle

Pocket Size ESP32 AI Voice Assistant With Xiaozhi

Pocket-size AI voice assistant that can listen, respond, and even display information on a small screen. It feels more like a real device

April 09, 2026 by Raushan kumar

ESP32 Ultrasonic Radar System with Web-based Visualization

This project is an ultrasonic-based radar system using an ESP32 running FreeRTOS to manage tasks and interrupts. A servo-mounted ultrasonic sensor scans the area in automatic or manual mode. An OLED screen shows mode and distance, while LED and buzzer alerts trigger on detection. Two modes and parameters can be setup using buttons and the OLED

April 04, 2026 by GDs - Tech

DFRobot FireBeetle ESP32-P4 OLED Controller

A complete step‑by‑step guide to build a web‑controlled OLED display

March 21, 2026 by CETECH CETECH

Retro Analog VU Meter on Round dispalys (ESP32 and GC9A01)

Using the LVGL library and SquareLine Studio, I created a visualization that is not only functional, but also aesthetically enriches any audio system.

March 21, 2026 by Mirko Pavleski

DIY IoT Smart Energy Meter With ESP32, LoRa - Web Monitoring

In this project, we build a long-range IoT energy monitoring system using ESP32, LoRa, and a custom web dashboard. It measures voltage, current, power, and energy in real time and allows remote control of loads.

March 18, 2026 by Raushan kumar

Ultimate 2-Player Reaction Timer with WS2812B LED Strips & Arduino

This project transforms basic components like LED strips and an Arduino into a professional-grade arcade experience that tests the limits of human reaction time.

March 14, 2026 by Mirko Pavleski

Arduino Distance Detection with GP2Y0D80Z0F Sensor

Build a simple digital distance detector using the Sharp GP2Y0D80Z0F sensor and Arduino Uno.

March 05, 2026 by Rinme Tom

DIY Smart Code Lock with CrowPanel 1.28 ESP32 Rotary Display

In this video, I demonstrate the simplest way to build an advanced, keyless security device using the CrowPanel 1.28-inch-HMI ESP32 Rotary Display. This module is a game-changer for DIY electronics because it integrates a touch screen, a physical button, and a rotary encoder into one sleek unit.

February 28, 2026 by Mirko Pavleski

DIY 8x32 LED Matrix Smart Clock With Awtrix 3.0

DIY 8×32 ESP32 LED Matrix Smart Clock with AWTRIX Light—fully customizable desk display for time, sensors, and cool animations.

February 06, 2026 by Raushan kumar

DIY 3-Display OLED Clock with Arduino and I2C Multiplexer

The three displays are with I2C communication protocol and are controlled by a single microcontroller, but with the help of an I2C multiplexer module.

January 31, 2026 by Mirko Pavleski

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Latest Lighting Projects

Categories

Platforms

PowerPD — ESP32 USB-C PD/PPS Programmable Power Supply

Build an IoT Smart Grid with Arduino UNO R4

Low-Cost Offline Voice Recognition with SU-03T

ESP32-CAM WhatsApp Image Alert System

Simple Optocoupler Tester Circuit

Arduino Handheld Game Console

ESP32 Analog VU Meter – Smooth Needle, Real Audio Response (DIY Build)

ESP Claw with DFRobot ESP32 P4 Dev Kit

Professional grade Smart Lock with ESP32, BLE and Android App Control

Power Failure Alarm

Pocket Size ESP32 AI Voice Assistant With Xiaozhi

ESP32 Ultrasonic Radar System with Web-based Visualization

DFRobot FireBeetle ESP32-P4 OLED Controller

Retro Analog VU Meter on Round dispalys (ESP32 and GC9A01)

DIY IoT Smart Energy Meter With ESP32, LoRa - Web Monitoring

Ultimate 2-Player Reaction Timer with WS2812B LED Strips & Arduino

Arduino Distance Detection with GP2Y0D80Z0F Sensor

DIY Smart Code Lock with CrowPanel 1.28 ESP32 Rotary Display

DIY 8x32 LED Matrix Smart Clock With Awtrix 3.0

DIY 3-Display OLED Clock with Arduino and I2C Multiplexer

Categories

Platforms

Latest Lighting Projects

Categories

Platforms

PowerPD — ESP32 USB-C PD/PPS Programmable Power Supply

Build an IoT Smart Grid with Arduino UNO R4

Low-Cost Offline Voice Recognition with SU-03T

ESP32-CAM WhatsApp Image Alert System

Simple Optocoupler Tester Circuit

Arduino Handheld Game Console

ESP32 Analog VU Meter – Smooth Needle, Real Audio Response (DIY Build)

ESP Claw with DFRobot ESP32 P4 Dev Kit

Professional grade Smart Lock with ESP32, BLE and Android App Control

Power Failure Alarm

Pocket Size ESP32 AI Voice Assistant With Xiaozhi

ESP32 Ultrasonic Radar System with Web-based Visualization

DFRobot FireBeetle ESP32-P4 OLED Controller

Retro Analog VU Meter on Round dispalys (ESP32 and GC9A01)

DIY IoT Smart Energy Meter With ESP32, LoRa - Web Monitoring

Ultimate 2-Player Reaction Timer with WS2812B LED Strips & Arduino

Arduino Distance Detection with GP2Y0D80Z0F Sensor

DIY Smart Code Lock with CrowPanel 1.28 ESP32 Rotary Display

DIY 8x32 LED Matrix Smart Clock With Awtrix 3.0

DIY 3-Display OLED Clock with Arduino and I2C Multiplexer

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