Rp2040-rs232

jfedor2·rp2040-rs232·kicad/rp2040-rs232.kicad_pcb

About the Rp2040-rs232 PCB

Rp2040-rs232 is an open source RP2040/RP2350 PCB design by jfedor2, published on GitHub. It is a 2-layer board measuring 32 × 52 mm, with 43 components from 17 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the TLV73333PDBV, W25Q128JVS and MAX3243. By type, the board carries 21 capacitors, 12 resistors, 4 ICs, 3 switches, 1 crystal and 1 connector.

From the project

RS-232 adapter with an RP2040 chip

This repository contains design files and firmware for a board that can be used as an RS-232 (serial) to USB adapter. It has an RP2040 chip for the application logic and a MAX3243 chip for the serial interface.

The provided firmware supports classic serial mice, two types of 3D mice (Magellan/SpaceMouse and Spaceball 2003), the SpaceOrb 360 game controller, and can also act as a generic serial-to-USB adapter.

Rp2040-rs232, from the project README — From the project README

Main components on the Rp2040-rs232

RP2040 TLV73333PDBV W25Q128JVS MAX3243

Rp2040-rs232 bill of materials (BOM)

43 components, 17 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	RP2040	RP2040-QFN-56	U1
1	TLV73333PDBV	SOT-23-5	U2
1	W25Q128JVS	SOIC-8_5.23x5.23mm_P1.27mm	U3
1	MAX3243	SSOP-28_5.3x10.2mm_P0.65mm	U5
1	CRYSTAL_GND24 Crystal_GND24	Crystal_SMD_2520-4Pin_2.5x2.0mm	Y1
1	DE9_PINS DE9_Pins	C19077344	J1
1	SW_DIP_X04 SW_DIP_x04	C92645	SW1
2	SW_Push	C720477	SW19, SW20
1	HRO-TYPE-C-31-M-12	HRO-TYPE-C-31-M-12-Assembly	USB1
10	100N 100n	C_0402_1005Metric	C1, C2, C3, C4, C5, C6, C7, C8 +2
8	1u	C_0402_1005Metric	C10, C11, C12, C13, C17, C18, C19, C20
2	15P 15p	C_0402_1005Metric	C14, C15
1	10U 10u	C_0402_1005Metric	C21
2	27	R_0402_1005Metric	R1, R2
6	10K 10k	R_0402_1005Metric	R3, R4, R6, R10, R11, R12
2	1k	R_0402_1005Metric	R5, R7
2	5.1K 5.1k	R_0402_1005Metric	R8, R9

Rp2040-rs232 design files

The KiCad project lives in the jfedor2/rp2040-rs232 repository on GitHub; these links point at the commit this page was built from.

Rp2040-rs232: common questions

What microcontroller does the Rp2040-rs232 use?

The Rp2040-rs232 is built around the RP2040, from the RP2040/RP2350 family.

How big is the Rp2040-rs232 PCB?

The Rp2040-rs232 measures 32 × 52 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rp2040-rs232?

43 components, from 17 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 Rp2040-rs232 design files?

From the jfedor2/rp2040-rs232 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 Rp2040-rs232 design in my own project?

The repository has no license, so all rights stay with jfedor2. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Rp2040-rs232 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.