MainBoard

connorfcruz·nadanna-guam·hardware/main-board/MainBoard.kicad_pcb

About the MainBoard PCB

MainBoard is an open source RP2040/RP2350 PCB design by connorfcruz, published on GitHub under the MIT license. It is a 2-layer board measuring 65.3 × 50.3 mm, with 18 components from 8 distinct parts.

Its main chip is the Module_XIAO-RP2040, from the RP2040/RP2350 family. Other key parts include the ATtiny1614-SS. By type, the board carries 9 resistors, 6 connectors, 1 IC, 1 module and 1 capacitor.

It belongs with the sensors and test & measurement designs in this gallery.

From the project

An interactive map of Guam displaying culture, history, and mythology

An interactive physical map that teaches the culture of Guam. Place a 3D-printed latte stone marker on a landmark and the screen tells you about it.

The board is a 16" x 24" wooden case with a green acrylic cutout of Guam inlaid into its surface. Four cultural landmarks are marked with stars and labelled in vinyl. A small 3D-printed latte stone - the island's most recognisable cultural symbol - acts as the marker, with a magnet embedded inside it.

MainBoard, from the project README — From the project README

Main components on the MainBoard

ATtiny1614-SS

MainBoard bill of materials (BOM)

18 components, 8 distinct parts.

Qty	Part	Footprint	Refs
1	ATtiny1614-SS	SOIC-14_3.9x8.7mm_P1.27mm	U1
1	Module_XIAO-RP2040	SeeedStudio_XIAO_RP2040	M1
3	Conn_PinHeader_1x06_P2.54mm_Horizontal_SMD	PinHeader_1x06_P2.54mm_Horizontal_SMD	J1, J4, J5
1	Conn_PinHeader_1x05_P2.54mm_Horizontal_SMD	PinHeader_1x05_P2.54mm_Horizontal_SMD	J2
1	Conn_PinHeader_1x04_P2.54mm_Horizontal_SMD	PinHeader_1x04_P2.54mm_Horizontal_SMD	J3
1	Conn_PinHeader_1x03_P2.54mm_Horizontal_SMD	PinHeader_1x03_P2.54mm_Horizontal_SMD	J6
1	C_1206	C_1206	C1
9	R_1206	R_1206	R1, R2, R3, R4, R5, R6, R7, R8 +1

MainBoard design files

The KiCad project lives in the connorfcruz/nadanna-guam repository on GitHub; these links point at the commit this page was built from.

Layouthardware/main-board/MainBoard.kicad_pcb
Schematichardware/main-board/MainBoard.kicad_sch

MainBoard: common questions

What microcontroller does the MainBoard use?

The MainBoard is built around the Module_XIAO-RP2040, from the RP2040/RP2350 family.

How big is the MainBoard PCB?

The MainBoard measures 65.3 × 50.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MainBoard?

18 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the MainBoard design files?

From the connorfcruz/nadanna-guam repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MainBoard design in my own project?

Yes, under the terms of its MIT license, which connorfcruz chose for the repository.

Can I test firmware for the MainBoard without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.