Prototype: Openbench Logic Sniffer logic analyzer

 2010 02 Ols-Cover

Prototype: Openbench Logic Sniffer logic analyzer @ Dangerous Prototypes – nicely done Ian, and Jack Gassett at the Gadget Factory as well as all involved!

Openbench Logic Sniffer is an open source logic analyzer. It’s designed to support the SUMP logic analyzer software at the lowest possible cost. Download the source and design files from the Gadget Factory project page.

This project started in the comments on a post. Initial circuit design, PCB layout, development, and testing continued in the forum under the code name Project SUMP PUMP. Many, many people contributed ideas and advice, the Gadget Factory and Dangerous Prototypes coordinated circuit development and routed the PCB. We borrowed heavily from the Gadget Factory’s Butterfly Platform.

The Open Logic Sniffer is a purpose-built logic analyzer board designed to be low cost but high speed. It sacrifices a lot of the features you’d look for in a full-scale development board to achieve our primary goals:

* 70MHz+ sample speeds
* 32 channels
* 16 buffered, 5volt tolerant channels
* USB interface, USB powered
* USB upgradable everything
* Make it as DIY as possible
* Make it as open source as possible
* $30-$40 price range

We didn’t quite hit our initial price range, but we got really close.

You can get your own assembled Open Logic Sniffer at Seeed Studio for $45, including worldwide shipping. Continue reading about the design and collaboration below.

Join 6,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

Maker Business — @the_prepared is Soliciting Original Content on Diversity, Equity, and Inclusion

Wearables — Victorian Arduino pizzazz

Electronics — Counting Pin Numbers

Biohacking — Exploring Our Inner Reality : Entopic Visions

Python for Microcontrollers — Building robots with Python, CRICKITS of the week, upcoming hackchat’ & more…

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !


  1. Thanks for the post! Don’t forget Jack Gassett at the Gadget Factory. It was a team effort, and a ton of other brilliant people lent their experience and insight to the effort.

  2. Just Pre-ordered one.. Looking forward to giving it a try! Great price for a hobbyist!

  3. WOOOOT! I have been waiting for this for quite some time…

    Gonna preorder tonight! 🙂

    Should also make a decent generic FPGA dev platform with a few tweaks to the PIC firmware…

Sorry, the comment form is closed at this time.