Arduino Uno is an open-source microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53-R0), a USB connection, a power jack, an ICSP header and a reset button.
The Arduino Nano RP2040 Connect is an RP2040-based Arduino board equipped with Wi-Fi (802.11b/g/n) and Bluetooth 4.2. Besides wireless connectivity the board comes with a microphone for sound and voice activation and a six-axis smart motion sensor with AI capabilities.
The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3.x). It has more or less the same functionality of the Arduino Duemilanove but in a different package.
What happens when Elektor and Arduino team up? United by a passion for electronics, we go full bore on creating innovative projects, writing in-depth engineering tutorials, and collaborating on a 140-page edition of your favorite electronics magazine.
At Embedded World 2025, Elektor's Brian Tristam Williams stopped by the Arduino booth to speak with Marcello Majonchi about Arduino’s evolution from a DIY favorite to a serious force in industrial automation. The booth was alive with energy and packed with demos — from autonomous robots and computer vision to smart home tech in action. Brian explored the latest in the Portenta and Opta product lines and got insights into Arduino’s bold move to integrate ESP32. Marcello even dropped hints about what’s coming next.
Curious about what’s ahead for Arduino? Watch now to catch all the highlights and discover where Arduino is headed next.