Learn how to design and build a simple microcontroller board in this step-by-step tutorial focused on PCB layout. Begin with setting up the PCB stackup and design rules before moving on to connecting power and USB components. Create a solid ground plane, connect the LDO and MCU fanout, and proceed with fanning out pull-ups, buttons, and accelerometer. Continue by connecting the RGB LED circuit and remaining signals. Conclude the layout process by running a Design Rule Check (DRC). Ideal for beginners, this comprehensive guide covers essential PCB layout techniques and provides valuable insights into the PCB design process.