George asks how thick PCB traces should be for driving a 120A solenoid: I’m doing a board design to power a solenoid that apparently draws 120 amps, but it’s only on for about 300 ms (I imagine it has some … Read more
Eric, the designer of the VideoOverlayShield now on sale at Seeed sent us this mail. Just wanted to write and say thanks for all the work you do at Dangerous Prototypes you and your team have been a big inspiration … Read more
Tokyo HackerSpace are moving to a new place. To support this move they teamed up with Safecast to offer the Chumby HackerBoard at ~$63, which is %30 off the normal price. The Chumby HackerBoard is a single board Linux computer, … Read more
In a previous post we wrote about Kiran’s review of Altera’s SignalTapII logic analyzer simulator for FPGAs. Jason let us know that Altera provides many free online courses for their tools, and one of them is for the SignalTapII. The … Read more
“THE 6502″ is a documentary series by Jason Scott about the MOS Technology 6502 chip, the circumstances that lead to it and the experiences of assembly language programming. Funded in 2011, the project is expected to go for several years … Read more
You bought it. You own it. Tell the Copyright Office: let me install whatever software I want on my phone, tablet, or video game system. bunnie Huang, author of Hacking the Xbox, is standing with the Electronic Frontier Foundation to … Read more
Ulf writes: I just read that OpenCores is planing to create an OpenRISC ASIC and asks the community for donations. I think the idea to create a RISC-Microprocessor under LGPL with the help of community funding is quite exiting. Via … Read more
arhi writes: I have some old (very old) KONTRON DMM 3002 bench top digital multimeter… there is a button on the thing that I have no clue what it does… So if you look at the pic, the button in … Read more
The National Institute of Standards and Technology accumulates hundreds of odd scientific and technical items each year, often without knowing their exact name or purpose. They have posted photos of various vintage items, and their tentative title in an effort … Read more
Seeed Studio is asking for help creating an open source radiation sensor, to help in the wake of the Japanese Tsunami earthquake. Can open hardware community do something to help in this? Seeed Studio is now sourcing sensors, then assemble … Read more
Thanks! um, get some sleep… Via the contact form.
We’ll be here on Turkey Day to answer your questions in the forum. Seeed Studio will be taking orders and shipping. (We can’t claim credit for that)
EPROMs are old-school data storage chips with a little window that exposes the silicon inside. Once these chips are programmed, they can only be erased by shining ultraviolet light through the window. The EPROM help page is a guide to … Read more
A new documentation wiki has replaced the old project manual pages. A bunch of stuff has already been moved and formatted for the wiki. The wiki is open for public editing. We could use your help moving and updating guides, … Read more
We’re looking for a C programmer who can add serial port output to usbpicprog. It’s all that stands in the way of bringing PIC 12F/16F/18F/ds30 programming to the Bus Pirate*. usbpicprog is an open source multi-platform programmer that uses wxWidgets … Read more
In The Forum
Recent Comments