Output Devices

Week 10: Output Devices – LED Blink with XIAO RP2040

Assignment: Add an output device to a microcontroller board and program it to perform a function & measure the power consumption of the output device

Assignment Goals

• Add an output device (LED) to a microcontroller board I designed.
• Program it to turn on and off (blink).
• Document the process, connections, and result.

Project Overview

This week, I used a custom-fabricated PCB that i designed in earlier weeks. The PCB includes a Seeed Studio XIAO RP2040 microcontroller to control an external LED. I programmed the board using Arduino IDE to turn on and blink the LED in, demonstrating a basic output signal.

Components Used

• Custom-milled PCB with Seeed XIAO RP2040 (based on my own design)
• 5mm yellow LED
• 220Ω resistor (current-limiting)
• Jumper wires and test clips
• Arduino IDE for programming

Arduino Code

documentation

Useful links

Code Example

Hero Shot

Video