I decided to follow along with HackClub's Devboard tutorial,
made by Kai Pereira, to get more comfortable with designing PCBs.
Here's what I ended up with:
Made in KiCAD
Schematic:
PCB:
1x RP2040 $0.92
1x PCB from JLCPCB $2.10
2x 33pF Capacitors $0.01
11x 0.1uF Capacitors $0.01
2x 1uF Capacitors $0.01
2x 10uF Capacitors $0.01
2x 27 Resistors $0.01
2x 1K Resistors $0.01
2x 5.1K Resistors $0.01
1x 10K Resistor $0.01
1x PinHeader1x03P2.54mm_Vertical $0.01
2x PinHeader1x20P2.54mm_Vertical $0.23
1x 4Pin 2x2.5mm Quartz Clock $0.06
1x USB-C Receptacle $0.17
1x TS-1088-AR02016 Push Button $0.04
1x MCP1700x-330xxTT Fixed Voltage Regulator $0.39
1x W25Q16JVZPIQ TR Flash Mem Chip $0.35
Estimated Shipping: $2.40
Estimated Total: $6.92