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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteYes—you can use a Raspberry Pi Pico as a logic analyzer in PulseView, but not with the board’s stock firmware. Flash the open-source sigrok-pico firmware first, then use a PulseView build that supports its driver. The project specifically says PulseView 0.4.2 does not support sigrok-pico, so check compatibility before troubleshooting cables or connections.
What you need before you start
- A Raspberry Pi Pico.
- A data-capable USB cable; a charge-only cable will not provide the USB data connection needed for setup.
- A PulseView installation with sigrok-pico support. The project says PulseView 0.4.2 is unsupported and recommends newer software. Check the package available for your operating system before proceeding. The sigrok downloads page offers release builds and nightly builds; nightly builds can contain bugs, as the PulseView manual notes.
The project also mentions an unofficial Windows installer. Treat it as unofficial rather than as an endorsed sigrok release. The libsigrok supported-device notes independently confirm that the Pico needs special open-source firmware for this use.
Flash the sigrok-pico firmware and connect PulseView
Follow the project’s instructions for the firmware variant appropriate to your board and intended configuration. This is the documented setup sequence, not a guarantee that every operating-system package or hardware combination will behave identically.
- Install a compatible PulseView build and confirm that it includes the sigrok-pico driver. Do this before diagnosing the Pico as faulty.
- Download the appropriate UF2 firmware variant from the sigrok-pico project.
- Disconnect the Pico. Hold its BOOTSEL button while connecting it to the computer with the data-capable USB cable. It should appear as a USB mass-storage device.
- Copy the UF2 file to the Pico drive. The board reboots after the firmware is copied.
- Open PulseView, select the
raspberrypi_picodriver, and configure the serial port as described in the project README. Select the device to begin working with its channels.
What the Pico project documents
The sigrok-pico README reports digital, analog, and mixed-mode acquisition. It lists 21 digital channels, D2–D22, and three analog channels, A0–A2. The project also provides precompiled UF2 variants with names indicating baseline, expanded digital-channel configurations, and Pico 2. These are project-documented capabilities, not independent performance measurements.
#1 Best Overall
- The Raspberry Pi Pico is a beginner-friendly microcontroller board that uses MicroPython to give you a taste of the Internet of Things and microcontrollers. The RP2040 is a well-designed microprocessor that can be utilized in almost any Internet of Things project. It has enough power to complete the task quickly.
- 【Raspberry Pi RP2040 Microcontroller】Raspberry Pi Pico features Dual-core ARM Cortex M0+ processor, flexible clock running up to 133 MHz. With 264KB of SRAM, and 2MB of on-board Flash memory.Supports up to 16 MB of off chip flash memory via a dedicated QSPI bus
- 【Multiple Software Support】Pico has rich and complete software support, it comes with a complete Rasberry Pi official C/C++ SDK, Micropython SDK.The programming and burning of Pico need to be carried out on the computer. Supported operating systems and computers include:Raspberry Pie with Raspberry Pi OS,Other platforms equipped with Debian based Linux system Computer with MacOS, Computers with Windows, etc.
- 【Rich Hardware Interface】Raspberry Pi Pico has 30 GPIO pins, 4 pins for analog signal input and 26 × multi-function GPIO pins, 2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 16 × controllable PWM channels.USB 1.1 supported by host and device, The installation mode can be flexibly selected by users to facilitate welding with other development boards.
- 【Build Project in Tiny Size】Only 2.1cm*5.1cm ( as small as your thumb). Pico has been designed to use either soldered 0.1" pin-headers or can be used as a surface-mountable 'module'.
The available sources do not establish a maximum reliable sampling rate, timing accuracy, input-voltage tolerance, capture depth, or comparative performance against a dedicated analyzer. Do not infer those values from the channel count or from the fact that PulseView can display the signals; consult the project’s current documentation for any specifications it publishes for your firmware and board.
View traces and decode protocols
PulseView is the graphical frontend for libsigrok and libsigrokdecode. Its manual describes recording, analyzing, processing, and exporting analog and logic data. Once a capture is available, you can inspect signal transitions in the trace view and, where a decoder supports the protocol, add a protocol decoder. Sigrok’s getting-started guide demonstrates decoding I²C, including presenting decoded activity alongside the captured signals.
Rank #2
- Raspberry Pi Pico: A tiny, fast, and versatile board built using dual-core Arm Cortex-M0+ processor (Comes with pinout card and stickers)
- Detailed Tutorial: Provides step-by-step guide with MicroPython, C and Processing (Java) Code (The download link can be found on the product box) (No paper tutorial)
- Example Projects: Each project has schematics, wiring diagrams, complete code and detailed explanations (Need extra items)
- Easy to Use: Just connect the board to your computer (installed IDE) with the USB cable to program it
- Get Support: Our technical support team is always ready to answer your questions
Use the Pico setup as a learning or debugging path for supported signals, while remembering that actual acquisition behavior depends on the hardware and firmware. Sigrok recommends quality probe hooks for connecting analyzer inputs to circuit signals; these are an optional accessory, not a substitute for checking the signal and board requirements in the project documentation.
Troubleshoot a missing device
- Confirm PulseView support first. The project says PulseView 0.4.2 is unsupported. Check the exact installed build and operating-system package; a missing driver can look like a connection problem.
- Check the firmware step. Stock Pico firmware is not sufficient: sigrok-pico requires its special firmware.
- Verify the USB connection. Use a data-capable cable and repeat the BOOTSEL firmware-loading process if the board did not receive the UF2 file.
- Check driver and serial-port selection. In PulseView, use the
raspberrypi_picodriver and configure the serial port as the project instructs. - Distinguish setup issues from performance questions. The documented channel counts do not establish sampling limits, input tolerance, or capture depth; avoid treating an undocumented performance expectation as a connection fault.
How to compare this setup with a dedicated analyzer
Compare the practical details rather than assuming that two devices with logic traces perform alike:
Quick Recap
Best Value
- RPi Pico 2 W Microcontroller Board (pre-soldered header (color-coded)), Based on Official RP2350 Chip, Dual-core & Dual-architecture Design. Upgraded hardware from Pico 2 with wireless communication, onboard antenna, features 2.4GHz 802.11n WIFI and Bluetooth 5.2.
- Adopts unique dual-core and dual-architecture design: dual-core Arm Cortex-M33 processor and dual-core Hazard3 RISC-V processor, flexible clock running up to 150 MHz.
- Onboard Infineon CYW43439 wireless chip, supports WIFI 4 wireless and Bluetooth 5.2.
- 520KB of SRAM, and 4MB of on-board Flash memory.
- Castellated module allows soldering direct to carrier boards. USB 1.1 with device and host support. Low-power sleep and dormant modes. Drag-and-drop programming using mass storage over USB.
Rank #4
- This breakout board is specially made for Raspberry Pi Pico, with additional pin headers, which are fully compatible with the board
- The product needs to be soldered by itself, and the pico can be inserted after successful welding
- The breakout board is gold-plated on both sides and holes are plated, and the material of the PCB board is excellent
- The breakout board is equipped with Raspberry Pi pico, which is convenient for users to develop and integrate flexibly
- Note: The package does not include Raspberry Pi pico. This product needs to be soldered and assembled by yourself
Rank #3
- Latest Version: Higher core clock speed, double memory, more powerful Arm cores, optional RISC-V cores (compared to the 1 series) (This W version has onboard wireless LAN and Bluetooth)
- Switchable Cores: Allows users to choose between dual industry-standard Arm Cortex-M33 cores and dual open-hardware Hazard3 cores
- Compatibility: Delivers a significant performance boost, while retaining software- and hardware-compatible with the 1 series
- Detailed Tutorial: Provides step-by-step guide with MicroPython, C and Processing (Java) Code (The download link can be found on the product box) (No paper tutorial)
- Example Projects: Each project has schematics, wiring diagrams, complete code and detailed explanations (Need extra items)
| Comparison point | What to check for the Pico path |
|---|---|
| Software compatibility | Whether your exact operating-system package and PulseView build include sigrok-pico support; the project identifies PulseView 0.4.2 as unsupported. |
| Setup | The special UF2 firmware, BOOTSEL loading process, driver selection, and serial-port configuration. |
| Channels and signal types | The project reports D2–D22 digital channels, A0–A2 analog channels, and mixed-mode acquisition. |
| Connections | Whether your probes and connectors suit the circuit; sigrok recommends quality probe hooks. |
| Acquisition performance and input limits | Compare published specifications for both devices. The cited Pico project information does not establish maximum reliable sampling rate, timing accuracy, voltage tolerance, or capture depth. |
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