MSP430 LaunchPad 4 channel logic analyzer update

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 channel version using the new 23LC1024 SPI RAM. Hope to find some time this weekend […]

3D Model: Logic Shrimp v2b

Today’s 3D model is the Logic Shrimp v2b. The newer version uses the single 23LC1024 SRAM instead of four 23K256, and the serial data lines (SD0 – SD3) are now bi-directional. The Logic Shrimp is a 4 channel, medium speed, low cost logic analyzer with 256K samples and 20MHz top speed. Check out our tutorial […]

MSP430 Launchpad Logic Analyzer based on the Logic Shrimp

oPossum built a 6 channel logic analyzer booster pack for the MSP430 Launchpad. His design is inspired by the Logic Shrimp and used SPI serial interface RAM chips to store samples. The MSP430 software is SUMP compatible and works with Jawi’s OLS client. This is a logic analyzer add-on for the TI MSP430 Launchpad. It […]

Week in (p)review: June 24, 2011

Facebook free PCB Friday is on the way. Don’t forget to share your current project in the comments or the forum. Here’s a summary of major developments over the last week: Thermal Tweeter, networked Twitter printer @dangerousproto Bus Pirate v3.5 is now shipping A box of new PCBs just arrived Bus Pirate is back in […]

All through-hole version of the Logic Shrimp

jarin made an all through-hole version of the Logic Shrimp logic analyzer: I’ve made variation of Logic Shrimp, using only through-hope components found in my junk box. More details and pictures can be found here. There is no schematics drawn, I built it just using datasheets and original schematics – and I’m too lazy to […]

Week in (p)review: May 20, 2011

Facebook free PCB Friday is on the way. Don’t forget to share your current project in the comments or the forum. Here’s a summary of major developments over the last week: Updated downloads for the Logic Shrimp, LCD Backpack FT232 Universal and LCD Backpack Nokia color USB IR Toy v2 free PCB build Bus Pirate […]

Maker Faire 2011: Hands-on DIY festival

The internet situation pre-Maker Faire Bay Area has been pretty bad. Worse than bad. Today we’re in the conference hotel though, and there’s wired and wireless internet aplenty. If you’re going to Maker Faire please stop by the Seeed Studio booth and say hi, we’re right next to the central Maker stage in the main […]

Logic Shrimp release package v2.0

Over the last few weeks we did a massive cleanup and reorganization of our SVN code repository. Most projects now follow a standard directory structure. All our in-progress and stalled project files are now completely open and available to anyone. We also included all the manufacturing resources used to initiate production at Seeed, and the […]

Free PCB Sunday: Logic Shrimp logic analyzer

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 PCBs are made through Seeed Studio’s Fusion board service. This week we’re giving away two […]

NEW PROTOTYPE: Logic Shrimp logic analyzer

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 makes this project possible. Each chip stores up to 256K samples from one logic analyzer […]