Rpboard squared

euvalennn·rpboard-squared·pcb/RPBoard².kicad_pcb

About the Rpboard squared PCB

Rpboard squared is an open source RP2040/RP2350 PCB design by euvalennn, published on GitHub. It is a 2-layer board measuring 31.3 × 67 mm, with 56 components from 27 distinct parts.

Its main chip is the RP2350_60QFN, from the RP2040/RP2350 family. Other key parts include the NCP1117-3.3_SOT223, W25Q128JVS and TP4056-42-ESOP8. By type, the board carries 23 capacitors, 13 resistors, 8 connectors, 4 ICs, 3 diodes and 2 switches.

It belongs with the dev boards & breakouts, displays & leds and power & battery designs in this gallery.

From the project

Simple RP2350-based devboard

RPBoard² is a simple RP2350-based board with multiple convenient features built-in. It's my first "actual" PCB project (I only did a hackpad before)

I wanted to build a devboard to learn more about actual PCB design and electronics, instead of using pre-made boards. I considered it as a personal challenge and ended up learning a lot on the two weeks it took me to make it :D

Rpboard squared, from the project README — From the project README

Main components on the Rpboard squared

RP2350_60QFN NCP1117-3.3_SOT223 W25Q128JVS TP4056-42-ESOP8

Rpboard squared bill of materials (BOM)

56 components, 27 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	RP2350_60QFN	QFN-60-1EP_7x7mm_P0.4mm_EP3.4x3.4mm	U1
1	NCP1117-3.3_SOT223	SOT-223-3_TabPin2	U2
1	W25Q128JVS	SOIC-8_5.3x5.3mm_P1.27mm	U3
1	TP4056-42-ESOP8	SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm_ThermalVias	U4
1	AO3401A	SOT-23	Q1
1	ABM8-272-T3	XTAL_ABM8-272-T3	Y1
1	USB_C_Receptacle_USB2.0_16P	TYPE-C-31-M-12	J1
1	JST SWD	JST_SH_BM03B-SRSS-TB_1x03-1MP_P1.00mm_Vertical	J2
1	Conn_01x02	JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal	J3
1	Micro_SD_Card	TF-01A	J4
1	JST I2C	JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical	J5
2	Conn_01x17	PinHeader_1x17_P2.54mm_Vertical	J6, J9
1	Conn_01x03	PinHeader_1x03_P2.54mm_Vertical	J8
2	SW_Push	TS-1088-ARXXX	SW1, SW2
1	LED	LED_0603_1608Metric	D1
1	SK6812MINI-HS	LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm	D2
1	1N5819WS	D_SOD-323	D3
1	3.3u	L_pol_2016	L1
4	10u	C_0402_1005Metric	C1, C2, C21, C22
4	4.7u	C_0402_1005Metric	C3, C4, C5, C16

Show 7 more

Qty	Part	Footprint	Refs
13	100n	C_0402_1005Metric	C6, C7, C8, C9, C10, C11, C12, C13 +5
2	15p	C_0402_1005Metric	C19, C20
3	5.1K	R_0402_1005Metric	R1, R2, R10
1	33	R_0402_1005Metric	R3
2	27	R_0402_1005Metric	R4, R5
4	1k	R_0402_1005Metric	R6, R7, R8, R9
3	10k	R_0402_1005Metric	R11, R12, R13

Rpboard squared design files

The KiCad project lives in the euvalennn/rpboard-squared repository on GitHub; these links point at the commit this page was built from.

Rpboard squared: common questions

What microcontroller does the Rpboard squared use?

The Rpboard squared is built around the RP2350_60QFN, from the RP2040/RP2350 family.

How big is the Rpboard squared PCB?

The Rpboard squared measures 31.3 × 67 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rpboard squared?

56 components, from 27 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Rpboard squared design files?

From the euvalennn/rpboard-squared repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Rpboard squared design in my own project?

The repository has no license, so all rights stay with euvalennn. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Rpboard squared 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.