RP2040-PicoProbe

red-scorp·RP2040-PicoProbe

About the RP2040-PicoProbe PCB

RP2040-PicoProbe is an open source RP2040/RP2350 PCB design by red-scorp, published on GitHub. It is a 4-layer board measuring 27.9 × 13.2 mm, with 40 components from 18 distinct parts.

Its main chip is the C2040, from the RP2040/RP2350 family. Other key parts include the W25Q128JVS, C2652100, C2456297 and C37970. By type, the board carries 15 capacitors, 7 resistors, 6 ICs, 6 diodes, 3 connectors and 1 crystal.

From the project

RP2040-based minimalistic debug probe board

The RP2040-PicoProbe project aims to create even smaller version of RP2040-DebugProbe.

The RP2040-PicoProbe board is a 4-layer design intended to accommodate the popular Raspberry Pi RP2040 MCU with all required component to function identically to Raspberry Pi Debug Probe.

This board features target debug connector and PC host micro-USB connector.The board is pin-compatible with Raspberry Pi Debug Probe and can be used with the same picoprobe SW.

RP2040-PicoProbe, from the project README — From the project README

Main components on the RP2040-PicoProbe

W25Q128JVS C2040 C2652100 C2456297 C37970

RP2040-PicoProbe bill of materials (BOM)

40 components, 18 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	W25Q128JVS	SOIC-8_5.23x5.23mm_P1.27mm	U1
1	C2040 RP2040	QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm	U2
2	C2652100 74AUP1T17	SOT-353_SC-70-5	U3, U6
1	C2456297 W25Q128JVEIQ	WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4.3mm	U4
1	C37970 MIC5205-3.3YM5	SOT-23-5	U5
1	C9002 12MHz	Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1
1	CONN_UART	Harwin_M20-89004xx_1x04_P2.54mm_Horizontal	J1
1	CONN_DBG	Harwin_M20-89004xx_1x04_P2.54mm_Horizontal	J2
1	C2763165 USB_B_Micro	USB_Micro-B_Molex_47346-0001	J5
1	C913786 BOOTSEL	SW_EVPBB0AAB000	S1
2	C72043 GREEN	LED_0603_1608Metric	D1, D6
2	C2286 RED	LED_0603_1608Metric	D2, D5
2	C72038 YELLOW	LED_0603_1608Metric	D4, D7
1	C1015 100@100MHz	L_0805_2012Metric	FB2
3	C1604 2.2uF	C_0603_1608Metric	C1, C5, C16
10	C1525 100nF	C_0402_1005Metric	C2, C4, C6, C8, C9, C10, C11, C13 +2
2	C15850 10uF	C_0805_2012Metric	C14, C15
7	C11702 1k	R_0402_1005Metric	R1, R2, R3, R4, R5, R6, R7

RP2040-PicoProbe design files

The KiCad project lives in the red-scorp/RP2040-PicoProbe repository on GitHub; these links point at the commit this page was built from.

LayoutRP2040-PicoProbe.kicad_pcb
SchematicRP2040-PicoProbe.kicad_sch
BOMcam/RP2040-PicoProbe-20240121-JLCPCB-BOM-WSON.xlsx

RP2040-PicoProbe: common questions

What microcontroller does the RP2040-PicoProbe use?

The RP2040-PicoProbe is built around the C2040, from the RP2040/RP2350 family.

How big is the RP2040-PicoProbe PCB?

The RP2040-PicoProbe measures 27.9 × 13.2 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the RP2040-PicoProbe?

40 components, from 18 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-PicoProbe design files?

From the red-scorp/RP2040-PicoProbe 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-PicoProbe design in my own project?

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

Can I test firmware for the RP2040-PicoProbe 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.