Sjaak found a bunch of pre-cut solder stencils for surface mount chips. Multi-purpose Sony Ericsson cell phones Samsung cell phones Motorola cell phones Multi-purpose Multi-purpose Multi-purpose Multi-purpose Nokia cell phones Multi-purpose Thanks Sjaak! Via the forum.
Author Archives: Ian
PROTOTYPE: Ethernet JTAG debugger for OpenOCD
We’re releasing a stalled or abandoned prototype every few days while Seeed Studio is on break. We put a lot of work into these projects, but they’re still missing major components and testing. If an abandoned project sparks your interest, we may have PCBs to get you started. The goal of this project was to […]
Teflon insulated wire trivia
AkosL writes in with a prototyping tip: Try teflon insulated wires. (Or other heat/wear resistant insulation materials). Why? The insulation is very resistant compared to “common” insulator materials. Both mechanically, and heat resistant (the one right in front of me is rated to temperatures between -60°C to +200°C). You could solder just few millimeters from […]
AVRphrase: DIY Catch Phrase game
Zach built his own version of the game Catch Phrase : When I started playing around with embedded systems, I wanted to do something more interesting than just flashing an LED, and I spent a lot of time trying to come up with project ideas that would be useful (or at least fun) when they […]
PROTOTYPE: XT IDE disk controller with CPLD
We’re releasing a stalled or abandoned prototype every few days while Seeed Studio is on break. We put a lot of work into these projects, but they’re still missing major components and testing. If an abandoned project sparks your interest, we may have PCBs to get you started. The XT-IDE project is a Vintage Computer […]
Serial port only Bus Pirate v3b
schazamp made a serial port only version of the Bus Pirate v3b: I have long admired the Bus Pirate, and wanted to build my own. Since I already have an FTDI USB-to-TTY cable, I thought I might replace the FTDI FT232RL subsystem on the Bus Pirate (v3b) with a header for my cable, to save […]
Free PCB Sunday: MCP2200 breakout board
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 […]
Week in (p)review: January 30, 2011
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 you enjoy the added features of the phpBB software. It was a bit of a […]
App note: MAX13450E, MAX13451E RS-485 transceivers
rsdio tipped us to some interesting parts and application notes: MAX13450E, MAX13451E RS-485 Transceivers with integrated termination Resistors It’s my goal to some day finish a DMX512 dimmer board that I started, based on the PIC16F87 and as many LEDs as can be attached to its I/O pins – next task would be a DMX512 […]
Forum: Project logs
There’s a new project log section in the forum. rsdio and senso have already shared projects. senso posted an AVR VU meter and spectrum analyzer. rsdio posted a PIC16-based 9-channel DMX512 dimmer. The dimmer isn’t open source, but it’s ripe for a remake. What are you hacking?
App note: Interface SDRAM and DDR SRAM with a CPLD
irrenhaus tipped us to demo projects that interface SDRAM and DDR SRAM with CoolRunner-II CPLDs: There is a reference implementation from xilinx how to interface a SDRAM memory from a CoolRunner-II CPLD XAPP394: “Interfacing to Mobile SDRAM with CoolRunner-II CPLDs” and XAPP384: “Interfacing to DDR SDRAM with CoolRunner-II CPLDs”). So my idea was: Why not […]
AVR VU meter and spectrum analyser
senso posted an AVR VU meter and spectrum analyzer in our new project log section of the forum. I’m here to show my on-going project, its a little VU meter and spectrum analyzer that I made using an op-amp, an Arduino and a 16×2 char lcd. Via the forum.
Bus Pirate v2go clone
RonZ posted pictures of a Bus Pirate v2go that is being made and sold in New Zealand. We never thought the Bus Pirate would be so popular. Closed-source companies usually feel threatened by third-party manufacturers, but we welcome the additional exposure, advertising, and contributions that it brings. Get your own handy Bus Pirate for $30, including […]
CPLD development board
voidptr shared a CPLD development board he made a few years ago: i used few times some xilinx xc9572xl with pleasure (and few other sizes). i like the family 5V tolerance, so i can plug that everywhere… Via the forum.
Logic Sniffer RLE update
rasmus has another RLE update for the Logic Sniffer. The finish command is now 0x05. Timer removed in favor of the finish command. The code has been optimized and made easier to read. Two independent updates of the logic analyzer core are currently underway in the forum. There’s also updates to the Verilog version we […]
STM32 Discovery: Getting started guide
A guide to getting started with STM32 discovery. Thanks Vis! Via the contact form.
All new Logic Sniffer FPGA core
dogsbody rewrote the entire Logic Sniffer FPGA core in Verilog and added nearly all the features of a HP 16550A workbench logic analyzer. Check it out: My version of the fpga uses 85% of the slices, keeps the legacy triggers, meets timing easily (at 105Mhz), and adds: Trigger Terms: 10 more 32-bit masked value comparisons. […]
NEW PRODUCT: xQFP breakouts
Prototype with QFP size surface mount chips. Currently available in 0.50mm, 0.65mm, and 0.80mm. 32-80pin xQFP packages Each pin brought to a header Open source (CC-BY-SA) Don’t know your size? See choosing a breakout board. Available in 0.50mm, 0.65mm, and 0.80mm for $3.
Rainbow cube case
Ril3y designed a laser cut plexi glass enclosure made for Seeed Studio’s Rainbow Cube Kit.
USB IR Toy on protoboard
Carl_electro posted pictures of a USB IR Toy made on a protoboard. This looks like the updated through-hold design with a frequency detector. Check out the design, and get a professionally made PCB for $7. Via the forum.