AdamBoard
Hardware
By
@yaasshh
- 1 Devlogs
- 7 Total hours
A custom-designed microcontroller development board built around the Raspberry Pi RP2040, designed from scratch in KiCad.
Hiya, great work on your devboard! Your BOM currently contains some DigiKey parts; however, I highly recommend you use PCB assembly from a fab like JLCPCB, as the components you're using are extremely hard to hand-solder without experience and it may even be cheaper to order via PCB assembly. Make sure to include all costs of your project (including PCB manufacturing) in your BOM.
P,S.: You can get a grant to buy a soldering iron by submitting a hackpad to a hackpad mission :)
Decided to build my own custom RP2040 board to learn hardware design. The RP2040 is awesome for this because it has incredible documentation.
I started by blocking out the schematic into logical chunks. The power supply needs to deliver both 3.3V and 1.1V, so I used an MCP1700 regulator and stacked up a dense bank of 0.1uF and 1uF decoupling capacitors to keep the power rails stable. For storage, I connected a 128Mb flash chip. I also integrated a USB-C connector and wired up a standard 12MHz crystal oscillator circuit to handle the clocking.
Moving from the schematic to the layout sort of tricky but we got there.
Hopefully everything runs
