Arduino UNO R4: A/D and D/A Converters for Audio, from Testing to a Voice Changer
A four-video series explores the analog-to-digital and digital-to-analog converters on the Arduino UNO R4, from basic concepts to building a…
element14 Community Smart Home and Healthcare Design Challenge
element14 Community has launched a new design challenge focused on smart home and healthcare projects, inviting engineers, makers, and tech…
PenEcho: the AI canvas that combines writing, drawing, and calculation
PenEcho is an open-source digital canvas where you can write, draw, and annotate equations while receiving AI responses placed right…
Face-Following Robot Built on Arduino UNO Q and Edge Impulse
A new open-source project shows how to combine computer vision and robotics on a single board, using the Arduino UNO…
Soil Moisture Sensor
Build a simple soil moisture threshold detector with a PCB fork sensor, an LM393 comparator, and a relay output for…
Arduino UNO R4 WiFi: A Guide to Sensors and Displays
Learn how to use the STEMMA QT/Qwiic connector on the Arduino UNO R4 WiFi to connect I²C sensors and displays,…
75 GPIO on a Single Board: The IOX-77 Beats the Arduino Mega with Wi-Fi
The IOX-77 is an ESP32-C3-based development board that packs 75 GPIO pins into a compact 71 × 42 mm PCB,…
LED Traffic Light Module for Arduino: Features, Wiring, and Testing
A compact LED traffic light module for Arduino and other platforms: how it works, how to wire it, and how…
Arduino Nano ESP32 LED Matrix Clock with WiFi Time Sync
Build a compact digital clock using an Arduino Nano ESP32 and a MAX7219-driven 8x32 LED matrix, with WiFi time synchronization,…