Dive deep into the Raspberry Pi Pico and RP2040 microcontroller in this fifth class of the HackadayU series. Explore the final project, PAL TV, and gain a comprehensive understanding of Programmable I/O (PIO). Master the PIO instruction set, learn to use the PIO assembler (pioasm), and practice coding various PIO applications including echo, blink, and seven-segment display. Discover the PIO debugger, implement a PIO keypad, and understand Interrupt Requests (IRQ). Conclude with guidance on approaching the final project, equipping yourself with advanced skills for microcontroller programming and hardware interfacing.