2 layers18.5 × 11.1 mm
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byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.
6 parts4.3kMIT
2 layers66.1 × 33 mm
Picoprobe pcb
tjko/tiny-picoprobe25Tiny PicoProbe PCB
- Size
- 66.1 × 33 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 6
- Nets
- 36
- Pads
- 102
- Tracks, vias
- 72, 0
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 5 Feb 2022
- Updated
- 25 Feb 2023
Overview
Picoprobe pcb is an open-source printed circuit board by tjko, from the tjko/tiny-picoprobe repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 66.1 × 33 mm with 6 parts on 36 nets, routed with 72 tracks and 0 vias.
Its parts include 1 resistor, 1 IC, 1 diode and 1 connector. It belongs with the RP2040 boards of this library.
README
README.mdtiny-picoprobe
Tiny PicoProbe is a small PCB to mount Raspberry Pi Pico, when you want to use PicoProbe to debug your Raspberry Pi Pico projects without a breadboard...
This was created to make it "handsfree" to update firmware when developing Fanpico (Smart PWM (PC) Fan Controller).
If you are not already familiar with PicoProbe see Appendix A in Getting Started With Pico (PDF).
There is also tutorial here: Raspberry Pi Pico and RP2040 - C/C++ Part 2: Debugging with VS Code
Update (February 2023): There is finally official "picoprobe" available: Raspberry Pi Debug Probe.
which may be better choice if you're looking for ready-made solution. But if you prefer a DIY solution, continue reading...
New Debug Probe makes "tiny-picoprobe" look not so small anymore:
PCB
PCB provides pinout to connect to Pico's SWD ("DEBUG") connector with flat (3-pin) ribbon cable, and it also has pinouts for UART and powering the Pico being programmed/debugged.
Designed with KiCad 6.0. PCB allows mounting Pico directly or using headers:
Kerbers
Kerber files ready to be sent to a PCB maker (like JLCPCB, PCBWay, etc...):
You will only need the ZIP file (link above) to order PCBs. Simply upload the ZIP file to a PCB maker website. Then you typically only need to only select quantity and PCB color. If ordering from JLCPCB you can also choose to "Specify a location" in the Remove Order Number option (this will place order number on the PCB so that the Pico will cover it).
Assembly
PCB contains footprints for a 0805 size SMD LED and resistor to provide power indicator. Power indicator is optional.
| ID | Type | Description | Mouser P/N | LCSC P/N |
|---|---|---|---|---|
| D1 | LED (0805) | Pad is suitable for handsoldering 0805 size LEDs, 0603 should work as well... | 710-150080GS75000 (?) | C434432 |
| R1 | 7.5k (0805) | Depending on LED used choose appropriate resistor. Green high-intensity 0805 LEDs typically work nicely with resistor in 5k to 10k range | 603-RC0805FR-077K5L | C229003 |
Note, if soldering Pico directly on the PCB, then 1" diameter shrink tubing can be used to wrap the pico and PCB in nice insulated package.
DIY Kits
If you'd like to support Open Source Hardware development. DIY Kits are made available in limited quantity.
Check availability here: eBay
Credits
Idea for this PCB came from Fabien-Chouteau/picoprobe-pcb (check his version as he sells it on Tindie).
KiCad Pico model/footprint that was used can be found here ncarandini/KiCad-RP-Pico
Parts
6| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 5k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J1 |
| 1 | LED (0805 Green) | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | Pico | MCU_RaspberryPi_and_Boards:RPi_Pico_SMD_TH | U1 |
The 4 most common of 6 parts.
Questions
How big is the Picoprobe pcb PCB?
It measures 66.1 × 33 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Picoprobe pcb use?
6 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Picoprobe pcb KiCad files?
From the tjko/tiny-picoprobe repository on GitHub, at the commit this page was made from: the board is picoprobe-pcb.kicad_pcb and its schematic picoprobe-pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Picoprobe pcb design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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