Using an ESP32-S3, this project guides you through assembling a portable WiFi tool that scans and visualises WiFi networks around you, helping you spot dead zones, check security, and understand wireless signals.

Learn how to hook up WS2812B LEDs to your ESP32 and use the FastLED library to control each LED on the strip through a single digital pin.

This open-source solar setup uses Arduino UNO Q’s Edge AI to automatically track the sun, protect panels from heat and harsh weather, and even vibrate to clean dust or snow. It combines sensors, servos, and a Linux system to optimise energy capture and respond to forecasts by adjusting panel position or entering emergency mode.

Using an ESP32 and sensors like AD8232 and MAX30102, this project measures heart rate, blood oxygen, and temperature, then streams the info live on a medical-style web dashboard. It features an animated ECG trace, vital signs cards, patient data management, and Excel export—all running from the ESP32’s Wi-Fi connection.

This project uses an ESP32-C3 and TCS34725 sensor to deliver fast, accurate colour readings with real-time RGB LED feedback and a wireless smartphone web interface.

Unlike classic BJT-based drivers, the TB6612FNG offers a modern, energy-saving way to drive two DC motors using Arduino. It’s smaller, works well with 3.3V or 5V logic, and keeps your motors running cooler while you control their speed and direction.

From measuring particulate matter with a PMS7003 sensor to hosting soil moisture data on a web server, these five ESP32 projects use affordable parts and straightforward coding to get you familiar with network requests, displays, and motion sensing.

This hands-free mouse uses IMU sensors for cursor movement and EOG/EMG signals for click and command actions, enabling control through head turns, blinks, and jaw clenches on a Bluetooth platform powered by the Neuro-PlayGround Lite. The firmware supports custom gesture programming.

This project combines a rotating acrylic diffuser and an addressable RGB LED ring controlled by a Raspberry Pi to produce moving ocean wave-like lighting effects that you can program yourself.

Learn how a 24V DC photoelectric sensor can trigger an AC timer relay through an interposing (interface) relay, making it possible to combine different voltage devices in one control system.

Seven-segment displays didn’t start in the 1960s or 70s; their design appeared in patents over a century ago and survived countless tech changes because they offer the simplest way to show numbers clearly with minimal hardware.

The TOTPVault uses a RISC-V chip and ESP32-C3 to store TOTP codes securely, encrypting data with AES256 and cutting off WiFi, Bluetooth, and JTAG access for strong protection you can verify yourself.

This smart weighing scale combines accurate load cell sensing with voice output and a local OLED display, plus a web dashboard that tracks sales by item, weight, and price. Powered via USB or battery, it stores all data locally for offline use and CSV export.

By harvesting phantom power directly from the 4-20mA signal, this converter changes the current range to 0-20mA and drives a grounded load without needing a separate power source. It solves the tricky challenge of running entirely off the signal it’s converting.