Marcus is designing an 8 channel version of our Logic Shrimp. It features a PIC32 microcontroller driving overclocked SRAM chips for more then 20 MSamples/s. It’s designed to fit a 3cmx3cm PCB rendered above. Get a Logic Shrimp from Seeed … Read more
OPossum already designed a MSP430 LaunchPad logic analyzer based on our Logic Shrimp. In the latest update he decided to follow our lead in changing the 4 23K256 SRAM ICs for a single 23LC1024 IC. Preliminary design of a 4 … Read more
Jon used TI’s SmartRF Protocol Packet Sniffer to reveal 802.15.4 wireless packet details: For the last several months my work with the XBee modules from Digi International involved using a logic analyzer to monitor the serial communications to and from … Read more
This small 4 channel logic analyzer uses a ATmega microcontroller and a Nokia 5110 LCD. It’s able to capture signals only up to about 100Khz, but there is probably some room for improvement. This mini Logic analyzer is a tool … Read more
Helmy entered an 8-Channel 6MS/s USB logic analyzer into the Open 7400 Logic Competition. His device converts the 8 channel parallel inputs into a UART based serial signal. It outputs this serial signal to the input pin of a PL2303 … Read more
The longhorn Engineer I was so impressed by the Open Bench Logic Sniffer that I had to make a little mini review detailing its features. Get a Logic Sniffer for $50, with free worldwide shipping. Via the contact form
Dangerous DSO is a new logic analyzer/oscilloscope prototype we’ve been using in the lab. It combines a 16 channel logic analyzer with one 50MHz oscilloscope channel with +/-10volt DC range. The combined tool shows what your signal does between 0 … Read more
We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our … Read more
The Logic Shrimp is a medium speed, low-cost logic analyzer with a USB interface. It can capture up to 256K samples at 20MHz, and is compatible with the open source SUMP logic analyzer client. The 23K256 serial SRAM from Microchip … Read more
Don’t forget to share your current project in the comments or the forum. This week our favorite project gets a free SOIC protoboard. Here’s a summary of major developments over the last week: The new forum is running, we hope … Read more
Ladyada explores the Kinect protocol using a USB analyzer. While we know the Kinect has already been cracked, this is a good example of how USB analyzers can be a helpful (though costly) addition to a workbench.
Jack has a bunch of Open Logic Sniffer tutorial and testing videos at the Gadget Factory. There’s also a demo on YouTube, and a high quality screencast. The Open Logic Sniffer is currently available for preorder at Seeed Studio for … Read more
The most recent documentation is now on the wiki 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 … Read more
Today we completed an initial PIC firmware for the open source logic analyzer. The PIC has two operating modes: a serial bridge for SUMP to talk to the client on the FPGA, and a ROM programmer that updates the AT45DB041D … Read more
A few months ago we started working with the Gadget Factory to build an open source logic analyzer. After a very successful collaboration, we’re almost ready to order the first PCBs. Click here for a large PCB image [PNG]. The … Read more
Merve is working on an Arduino-driven logic analyzer design in the Arduino Forum. It uses logic chips to drive SRAM memory during acquisition, the Arduino then dumps samples from the SRAM via a shift register. We’re really interested in the … Read more
Development of the open source logic analyzer, first discussed here, has progressed rapidly in the forum. We’ve looked at cost estimates, Uwe made some excellent block diagrams, and Jack has already added a basic layout to his SVN. Read our … Read more
See the latest version on the documentation wiki. This is an updated guide to the Bus Pirate logic analyzer mode, it expands on the initial documentation posted earlier. Bus Pirate firmware v3.0 introduced a logic analyzer mode that works with … Read more
We wanted to check the remote control output while we debugged the color changing pumpkin. Usually we’d use a Saleae Logic, but instead we made an experimental logic analyzer firmware for the Bus Pirate. ***BIG WARNING*** The Bus Pirate will … Read more
Today we played with a few open source logic analyzer clients in preparation for an upcoming prototype. The best we found is SUMP, written in Java. There’s also compatible host software for several FPGA development boards, we found even more … Read more
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