Q: What are the key features of the Arduino Uno R3 board?

A: The Arduino Uno R3 board offers several key features, including:

• 14 digital input/output pins (of which 6 can be used as PWM outputs)
• 6 analog inputs
• 16 MHz quartz crystal oscillator
• USB interface for programming and serial communication
• Power jack for external power supply or USB power
• ICSP (In-Circuit Serial Programming) header for advanced programming and debugging
• Reset button to restart the microcontroller

These features make the Arduino Uno R3 versatile and suitable for a wide range of projects, from simple LED blinking to more complex robotics and automation applications.