Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...

The Arduino Nano and Uno are equipped with very similar processors (the chip that essentially serves as the brain of the board). The Nano features an ATmega328, while the Uno sports an ATmega328P.

PWM pins work the same way across all Arduino boards, so you don't need to go out of your way to buy a Mega if you already have a board supporting PWM. On the Uno, Nano, and Mini, the PWM pins are ...

This board also features 128 MB of RAM, 8MB of Flash and the usual compliment of Arduino pins in a Leonardo-compatible layout. Also on the SoC is a PCIE bus, Ethernet, a USB 2.0 host, and an SD card.

I/O Voltage – 5V DC Current per I/O pin – 8 mA Arduino UNO R4 WiFi only Qwiic I2C connector for expansion modules. 3-pin header with an “OFF” pin to turn off the board and a “VRTC” pin to keep the ...

Arduino UNO header compatible with a wide range of shields 5-pin and 6-pin headers for additional GPIOs and 3.3V, GND All Raspberry Pi Pico GPIOs are exposed 3.3V only, no 5V tolerant Debugging – SWD ...