Please Note: This page is out of date and is here for archive purposes. Please visit the new Open Bench Logic Sniffer site where you can find the latest information and downloads.
OpenBench Logic Sniffer is an open source logic analyzer hardware design. It’s purpose is to provide a hardware platform for the SUMP logic analyzer at the lowest possible cost.
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 OpenBench 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 FPGA 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.
Block Diagram
Windows Quick Start Video
UART Demo Video
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