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Building a Colorful LED Matrix Display with WS2812B

“In this project, we’ll guide you through building a colorful LED matrix display using WS2812B modules. Circuit Design 1. Connect WS2812B Modules: Connect the data input (DI) of each WS2812B module to a digital pin on the Arduino (e …

Building Gates with the AVR Event System

“This article shows how to use the AVR Event System to make buffers or inverters in the DA, DB, DD, EA, or EB series microcontrollers, and gives some practical examples, such as a simple Blink application Introduction If you’re …

Chinese team’s memory leap shrinks data centre storage capacity into DVD-sized disk

“Imagine a DVD-sized disk that could store more than 10,000 times the data of a Blu-ray Disc, a feat that could lead to vast savings of storage space and energy in an era of big data and artificial …

ChromaDome - a HemiSpherical Decorative Lamp

“This project is about building a hemispherical LED lamp that can be used as a decorative piece or for ambient lighting. The LEDs are arranged in a pattern to create a visually appealing effect. The semi-transparent shell diffuses the light …

Citizen Astronomers and AI Discover 30,000 Ring Galaxies

“Building on the synergy between citizen astronomer classifications and Artificial Intelligence, astronomers have discovered approximately 400,000 spiral galaxies and 30,000 ring galaxies in data from the Subaru Telescope. This is the first example of research building on the …

Connect XIAO ESP32 C3 with the DHT11 via I2C

“DIY smart home device based on XIAO ESP32C3 connecting DHT11 sensor and an OLED display to monitor humidity and temperature. Connect XIAO ESP32 C3 with the DHT11 via I2C Introduction: Creating your gadgets not only empowers you but also adds …

Controller With Menu

“You can control either the LED or the motor with the menu-controlled device I developed. Thanks to the menus on the screen, you can offer multiple options to the device you control. The device in the example is a motor …

Correcting an old space-physics error for safer satellites

“The discovery means textbooks will (literally) need to be rewritten. Correcting 50-year-old errors in the math used to understand how electromagnetic waves scatter electrons trapped in Earth’s magnetic fields will lead to better protection for technology in space. “The …

Designing a Low-Noise Audio Amplifier with 2N3906

“In this project, we’ll guide you through designing a low-noise audio amplifier using the 2N3906 transistor. Circuit Design: 1. Biasing Circuit: Connect the emitter (E) of the 2N3906 transistor to the ground. Connect a resistor (RE) from the emitter …

Differential drive robot using ROS2 and ESP32

“Differential drive robot using ROS2, micro-ROS and ESP32 In this project, we had build a differential drive robot using EPS32 microcontroller. ROS2 humble is used for controlling the robot. Micro-ROS is uses for connecting ESP32 to ROS2 running …