RGB LED
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Arduino Round Segment NeoPixel Clock Digital clocks are one of the most popular Arduino projects, and most of them use traditional seven-segment displays to show the time. While these displays are simple and reliable, they usually have the same familiar rectangular shape and monochrome appearance. When I decided to build a new digital clock for my room, I wanted to create something that worked like a seven-… |
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Mesh Node Combines LoRa and Meshtastic for Off-Grid Messaging Not being able to locate a friend who got separated from the group during a trek led to the development of Mesh Node, a device designed for connectivity in areas where traditional infrastructure does not exist. It uses LoRa tech to support messaging over distances of up to 4–5 kilometres in open areas. The range of communication extends even longer by forming a mesh network, where devices… |
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Custom RGB 14-Segment Display Built from Scratch YouTuber EastMakes set out to build something, a true RGB 14-segment display module. Wanting a retro alphanumeric display style for a large LED message board project, he designed his own module using ultra-tiny SK6805 addressable LEDs measuring just 1.5 mm square. Since datasheets lacked precise placement references, he scanned a physical display and calibrated the image in CAD software to… |
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LiteWing Flight Positioning Module NeoPixel Status Control (WS2812B) In this guide, we focus on the WS2812B addressable RGB LEDs on the LiteWing Flight Positioning Module. The module includes four NeoPixel-compatible LEDs, each independently controllable via software. These LEDs are useful for flight status indication and visual debugging during development. A curated collection of hands-on drone projects with guides showing how to… |
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Getting Started with ESP32-S3-BOX-3: AIoT Development Board Finding the right ESP32-S3 development kit often means compromising between functionality and deployment readiness. With so many ESP32-S3 dev kits out there, we have been searching for a ready-to-deploy module that doesn’t require extra work like designing enclosures or 3D printing cases. These things can significantly increase the deployment time. One such kit we… |
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Programming ESP32-S3 Box-3 with Arduino IDE: RGB LED Control Interface Building IoT projects with touchscreens used to be a headache, involving numerous components, messy wiring, and endless troubleshooting. But the ESP32-S3 Box-3 makes things way easier. It is an all-in-one board featuring a dual-core processor, touchscreen, and compatibility with the Arduino IDE. In this tutorial, we’ll take this developer-friendly board ESP32-… |
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How to build a Wearable Air Quality Monitor Pendant using STM32 & SGP40 Sensor Indoor and outdoor air pollution significantly impacts human health, causing respiratory issues and reducing life expectancy. Personal air quality monitoring has become essential for protecting ourselves from harmful airborne contaminants like volatile organic compounds (VOCs), particulate matter, and toxic gases. This DIY wearable air quality monitor pendant… |
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LED Matrix Display Project Uses ESP32 and Raspberry Pi Platforms If you've ever wanted a customizable smart display without the high cost or vendor lock-in, this DIY project might inspire you. Adam Conway, Lead Technical Editor and Developer for XDA, recently shared how he turned a Waveshare 64x32 P2.5 RGB matrix panel into a fully functional LED display using both a Raspberry Pi and an ESP32. A HUB75 interface, which is standard for these types of… |
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Arduino Introduces Nano R4 Featuring RA4M1 MCU, Built for Space-Constrained Applications Arduino has released the Nano R4, a compact development board designed to help users traverse seamlessly through every stage of product development. The board is powered by the same chip used in the popular UNO R4, the Renesas RA4M1 microcontroller, which features 256 kB of flash memory, 32 kB of SRAM, and 8 kB of EEPROM, running at 48 MHz. The Nano R4, being designed specifically for… |
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Vishay Releases RGB LED with Independent Color Control in Compact PLCC-6 Package Vishay Intertechnology’s new VLMRGB6122 is a high-performance RGB LED designed for automotive lighting, full-color displays, and backlighting applications. It measures just 3.5 mm x 2.8 mm x 1.4 mm and comes in a PLCC-6 surface-mount package. Separate anode and cathode connections for the red, green, and blue chips allow colors to be controlled independently. Precise mixing across the full… |
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Build your own Electronic Dice with Arduino Nano 33 BLE for Digital Board Games Many of us fondly remember the joy of playing board games like Snakes and Ladders or Ludo during our childhood. These simple yet engaging games brought families and friends together, making any gathering lively and entertaining. Rolling dice, moving tokens, and experiencing the ups and downs of the game taught us lessons in patience and unpredictability while… |
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PRAVESH - Smart Entry-Exit System PRAVESH is an RFID-enabled Smart Entry-Exit System designed to replace manual logs with a seamless digital solution. Using RFID cards, students can quickly and accurately log their entry and exit, reducing delays and improving accountability. Built on the Arduino UNO R4 Wi-Fi Board, PRAVESH integrates with campus infrastructure, providing real-time tracking,… |
