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Raspberry Pi Official Debug Probe, All-In-One USB to Serial Debug and UART Bridge

PB Tech price
PB Tech price
NZD $ 24 .78
$ 24 .78
$24.78  +GST
$24.78

Raspberry Pi Official Debug Probe, All-In-One USB to Serial Debug and UART Bridge

5
PB Tech price
NZD $ 24 .78 $ 24 .78


Delivery: Order now and it ships today
Estimated Delivery Times
7 - 10 working days for international destinations

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$24.78  +GST
$24.78

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Case Colour

Clear

PSU Colour

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What PB Tech customers are saying about this product...

See More Reviews

"Great for debugging"

DG
By: DaveG881 04/08/25
Verified Owner

"Have used it with a raspberry pi Pico W module also available on PB tech, and on a Mac. Setup is easy, and works for the development work."

AP
By: AndrewP494 16/12/24
Verified Owner

"Purchased the probe to use it as a serial/USB converter and ...view more"

SP
By: SebastianP982 05/08/24
Verified Owner

Features

The Raspberry Pi Debug Probe is an inexpensive, all-in-one USB to serial debug and UART bridge.

It provides the necessary hardware and cabling to support "plug and play" debugging of Raspberry Pi Pico and other microcontroller- and microprocessor-based platforms.

The Raspberry Pi Debug Probe provides both a processor serial debug interface (by default this is the ARM Serial Wire Debug interface) and an industry-standard UART interface. Both interfaces use a 3-pin debug connector, as specified in the Raspberry Pi 3-pin debug connector specification.

The Raspberry Pi Debug Probe is provided as a kit, containing the probe hardware in a plastic case, and a set of cables: a USB cable, and three different types of debug cable to cover the vast majority of use cases.

It provides:

 - A USB to Serial Wire Debug (SWD) bridge
 - A generic USB serial adapter
 - Cables to connect to a host computer, and to the debug target

While it has been designed primarily for Raspberry Pi Pico, and other RP2040-based targets, the Debug Probe provides standard CMSIS-DAP debug and UART interfaces over USB; it can therefore be used to debug other targets (that have an SWD port with 3V3 I/O), or simply as a cost-effective USB-to-UART cable.

The Raspberry Pi Debug Probe is based on the Raspberry Pi Pico hardware design and runs the open-source Raspberry Pi Picoprobe software. Updating the firmware is accomplished in the same way as on a Raspberry Pi Pico, so it is straightforward to keep the unit up to date with the latest Picoprobe firmware, or to use a custom firmware.

What is a debug probe?

All modern Arm-based microcontrollers, including RP2040, implement Arm's CoreSight debug architecture. Each processor core, like the Cortex-M0+ used in RP2040, provides an Access Port (AP) which can be used to single step, set breakpoints, observe the values of processor registers, and access memory and peripherals via the processor's bus interface.

The microcontroller itself provides a Debug Port (DP), which is connected externally to pins on the package, and internally to each AP in the system. RP2040 exposes its DP via a low-pin-count Serial Wire Debug (SWD) port: by talking the SWD protocol over this port, a host computer can control each core's AP, in order to debug a program running on the core.

A debug probe provides a bridge between USB and the SWD protocol. While not strictly required if the host computer is a Raspberry Pi (you can wire up the target's SWD port directly to the GPIO header on a Raspberry Pi), it's much more convenient to connect via USB. And if you're using a PC or Mac, USB is your only option.

The Raspberry Pi Debug Probe exposes the SWD signals on a three-pin JST connector, conforming to the Raspberry Pi Debug Connector Specification. We provide adapter cables to connect without soldering to breadboard, and to the debug connector on Raspberry Pi Pico H and WH.

Arm has helpfully standardised the protocol used to communicate over USB between a host computer and a debug probe. The Raspberry Pi Debug Probe conforms to this CMSIS-DAP standard, and so will work out of the box with many existing debug software platforms, including our favourite, OpenOCD.

Serial communication

We often want to establish a serial console connection between a microcontroller target and a host computer. This provides a simple way to interact with software running on the target, and to retrieve logging and other diagnostic data. If the host computer is a Raspberry Pi, then you can use one of the UART peripherals exposed via the GPIO header. But if you're using a PC or Mac, it's very unlikely that you have access to a built-in serial port.

The Raspberry Pi Debug Probe functions as a USB serial adapter, over the same USB connection as the SWD bridge. It exposes the UART signals on a second three-pin JST connector, again conforming to the Raspberry Pi Debug Connector Specification.

For users who do not require debug functionality, the Raspberry Pi Debug Probe's low price makes it a cost-effective alternative to other USB serial adapters. It has largely replaced the once-ubiquitous FTDI cable as our adapter of choice here at Pi Towers.

 - 3.3V Logic
 - Customisable Two-wire serial debugging (ARM Serial Wire Debug supported by default)
 - A convenient USB-UART bridge
 - Compatible with the CMSIS-DAP standard
 - Works with OpenOCD and other tools supporting CMSIS-DAP
 - Follows the Raspberry Pi 3-pin debug connector specification.

Includes:

 - RP2040 based Debug probe board
 - Protective case
 - USB cable (Power and Data lines)
 - 3x Debug cables:
    - 3-pin JST SH to 3-Pin JST SH
    - 3-pin JST SH to Dupont-style female header
    - 3-pin JST SH to Dupont-style male header

Specifications

Manufacturer

Raspberry Pi

Product No.

SC0889

Manufacturer Part No:
SC0889
Brand:
Product Type:
-
UPC
-
Product Family:
Official
Shipping Weight:
0.05 kg
PB Part No:
SEVRBP0417
Product Model:
-
Warranty: 12 months *
* Warranty period is as stated above unless the manufacturer has chosen to specify a longer period.
All warranties are return to base unless otherwise specified.

Reviews

5 out of 5 Stars Based on 5 reviews
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Works well, good for development work.

Have used it with a raspberry pi Pico W module also available on PB tech, and on a Mac. Setup is easy, and works for the development work.

AP
By: AndrewP494 16/12/24
Verified Owner
1 out of 1 user found this review helpful
Did you find it helpful?

A great handy tool

Purchased the probe to use it as a serial/USB converter and very glad I did. It comes with an extra 3-pin debug to female jumper cable not shown on the photos. Exactly what I needed.
Pros:
- works well out of the box
- good selection of cables
- very good manufacturing quality
Cons:
- none, really

SP
By: SebastianP982 05/08/24
Verified Owner
1 out of 1 user found this review helpful
Did you find it helpful?

Works well with a variety of target microcontrollers

Seems to work very well when coupled with OpenOCD to debug targets including (but not limited to) RP2040, STM32F4xx and Nordic NRF52. Note that a 'naked' RP2040 Pico board can in principal be used to debug these targets when loaded with the debugger firmware, it will not work reliabily with all of them. In my experience, this approach will work well when debugging a RP2040 but not STM32Fxx and Nordic targets (and probably others). I think that this is because the Picoprobe has an additional driver IC involved in the SWD debug interface that a 'naked' RP2040 Pico board lacks and the firmware is slightly different, this IC which seems to be...view more

VM
By: VaughanM22 25/05/24
Verified Owner
1 out of 1 user found this review helpful
Did you find it helpful?

Great for debugging

Great for debugging

DG
By: DaveG881 04/08/25
Verified Owner
0 out of 0 users found this review helpful
Did you find it helpful?

awsome product

my rpi pico was not working o i bought one of these and i hooked it up and it worked

G
By: Guest 07/01/24
0 out of 0 users found this review helpful
Did you find it helpful?

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All orders shipped by PB Tech are sent via a courier with a signature required for each delivery. In some cases, and only where you have given the courier company permission to leave orders at a designated location, your order may be delivered without requiring a signature. All orders sent by PB Tech are fully insured in the unlikely event that your item(s) are damaged or go missing in transit.

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The delivery time-frame (in days) for each product we sell is detailed on the individual product page just to the right of the main product image. From when you place your order, in-stock products typically arrive within 7-10 working days for all countries that we ship to.

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If you are located in New Zealand, you can order directly from our New Zealand site www.pbtech.co.nz. If you are located in Australia you can order directly from our Australian website www.pbtech.com/au

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7 day right of exchange

If you change your mind after making a purchase, or realise you have ordered the incorrect item, you can enjoy the peace of mind that we offer a 7 day exchange policy.

To exchange a product, goods must be sealed / unopened, with packaging in original condition, and accompanied by a valid receipt dated no more than 7 calendar days from when you request an exchange.

If there is not a suitable product that can be exchanged for your returned item you will be offered a credit on your account or gift card based on the value paid at the time of purchase.

Please note, items purchased on finance cannot be exchanged for a gift card.

 

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If your product develops a fault within the manufacturer warranty period, you need to fill out our request a return form.

If your product develops a fault outside of the manufacturer warranty or PB Tech warranty period, we offer a full repair service and are an authorised repair agent for leading brands such as Samsung, HP, Toshiba, Lenovo and more.

 

Returning a product / making a warranty claim

To return a product to PB Tech, please complete our request a return form.

Or view our returns policy for more information.

Raspberry Pi Official Debug Probe, All-In-One USB to Serial Debug and UART Bridge

PB Tech price NZD $24.78

Date Created: 00:32, 04-09-2025
Product URL: https://www.pbtech.com/pacific/product/SEVRBP0417/Raspberry-Pi-Official-Debug-Probe-All-In-One-USB-t?is-review=1

Features

The Raspberry Pi Debug Probe is an inexpensive, all-in-one USB to serial debug and UART bridge.

It provides the necessary hardware and cabling to support "plug and play" debugging of Raspberry Pi Pico and other microcontroller- and microprocessor-based platforms.

The Raspberry Pi Debug Probe provides both a processor serial debug interface (by default this is the ARM Serial Wire Debug interface) and an industry-standard UART interface. Both interfaces use a 3-pin debug connector, as specified in the Raspberry Pi 3-pin debug connector specification.

The Raspberry Pi Debug Probe is provided as a kit, containing the probe hardware in a plastic case, and a set of cables: a USB cable, and three different types of debug cable to cover the vast majority of use cases.

It provides:

 - A USB to Serial Wire Debug (SWD) bridge
 - A generic USB serial adapter
 - Cables to connect to a host computer, and to the debug target

While it has been designed primarily for Raspberry Pi Pico, and other RP2040-based targets, the Debug Probe provides standard CMSIS-DAP debug and UART interfaces over USB; it can therefore be used to debug other targets (that have an SWD port with 3V3 I/O), or simply as a cost-effective USB-to-UART cable.

The Raspberry Pi Debug Probe is based on the Raspberry Pi Pico hardware design and runs the open-source Raspberry Pi Picoprobe software. Updating the firmware is accomplished in the same way as on a Raspberry Pi Pico, so it is straightforward to keep the unit up to date with the latest Picoprobe firmware, or to use a custom firmware.

What is a debug probe?

All modern Arm-based microcontrollers, including RP2040, implement Arm's CoreSight debug architecture. Each processor core, like the Cortex-M0+ used in RP2040, provides an Access Port (AP) which can be used to single step, set breakpoints, observe the values of processor registers, and access memory and peripherals via the processor's bus interface.

The microcontroller itself provides a Debug Port (DP), which is connected externally to pins on the package, and internally to each AP in the system. RP2040 exposes its DP via a low-pin-count Serial Wire Debug (SWD) port: by talking the SWD protocol over this port, a host computer can control each core's AP, in order to debug a program running on the core.

A debug probe provides a bridge between USB and the SWD protocol. While not strictly required if the host computer is a Raspberry Pi (you can wire up the target's SWD port directly to the GPIO header on a Raspberry Pi), it's much more convenient to connect via USB. And if you're using a PC or Mac, USB is your only option.

The Raspberry Pi Debug Probe exposes the SWD signals on a three-pin JST connector, conforming to the Raspberry Pi Debug Connector Specification. We provide adapter cables to connect without soldering to breadboard, and to the debug connector on Raspberry Pi Pico H and WH.

Arm has helpfully standardised the protocol used to communicate over USB between a host computer and a debug probe. The Raspberry Pi Debug Probe conforms to this CMSIS-DAP standard, and so will work out of the box with many existing debug software platforms, including our favourite, OpenOCD.

Serial communication

We often want to establish a serial console connection between a microcontroller target and a host computer. This provides a simple way to interact with software running on the target, and to retrieve logging and other diagnostic data. If the host computer is a Raspberry Pi, then you can use one of the UART peripherals exposed via the GPIO header. But if you're using a PC or Mac, it's very unlikely that you have access to a built-in serial port.

The Raspberry Pi Debug Probe functions as a USB serial adapter, over the same USB connection as the SWD bridge. It exposes the UART signals on a second three-pin JST connector, again conforming to the Raspberry Pi Debug Connector Specification.

For users who do not require debug functionality, the Raspberry Pi Debug Probe's low price makes it a cost-effective alternative to other USB serial adapters. It has largely replaced the once-ubiquitous FTDI cable as our adapter of choice here at Pi Towers.

 - 3.3V Logic
 - Customisable Two-wire serial debugging (ARM Serial Wire Debug supported by default)
 - A convenient USB-UART bridge
 - Compatible with the CMSIS-DAP standard
 - Works with OpenOCD and other tools supporting CMSIS-DAP
 - Follows the Raspberry Pi 3-pin debug connector specification.

Includes:

 - RP2040 based Debug probe board
 - Protective case
 - USB cable (Power and Data lines)
 - 3x Debug cables:
    - 3-pin JST SH to 3-Pin JST SH
    - 3-pin JST SH to Dupont-style female header
    - 3-pin JST SH to Dupont-style male header

Specifications

Manufacturer

Raspberry Pi

Product No.

SC0889

Date Created: 00:32, 04-09-2025
Product URL: https://www.pbtech.com/pacific/product/SEVRBP0417/Raspberry-Pi-Official-Debug-Probe-All-In-One-USB-t?is-review=1