Archive for the ‘help’ Category

Reader questions: Thickness of PCB traces for a 120A solenoid

Friday, August 17th, 2012

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 kind of "inverse curve" looking decrease with time, I haven't...

Posted in help | 27 Comments »

From the mail bag: Open source projects inspire!

Tuesday, July 17th, 2012

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 to me. Read about his project manufacturing at Seeed experience...

Posted in help, open source | 4 Comments »

Chumby Hackerboard – Support THS moving efforts

Thursday, July 5th, 2012

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, with a 454 MHz ARM processor, and 64 MB of...

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Posted in help | 2 Comments »

Online course for Altera’s SignalTapII logic analyser simulator for FPGAs

Thursday, March 1st, 2012

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 course covers the following: Add one or more instances of...

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Posted in FPGA, help | No Comments »

6502 microprocessor documentary in the works

Tuesday, January 31st, 2012

"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 of production, interviewing dozens of figures related to this subject....

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Posted in Chips, documentation, help, vintage | 3 Comments »

Jail breaking is not a crime petition

Monday, January 30th, 2012

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 defend users' right to jailbreak. Will you sign on to...

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Posted in help, News, open source | 3 Comments »

OpenCores: OpenRISC ASIC

Friday, May 6th, 2011

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 the contact form.

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Posted in FPGA, help | No Comments »

Can you identify this button?

Saturday, April 23rd, 2011

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 question is the pressed one, or if not clear which...

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Posted in help, idle | 4 Comments »

Help NIST identify these mysterious scientific objects

Tuesday, April 19th, 2011

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 to identify them. In coming months, NIST will add hundreds...

Posted in documentation, help, vintage | 2 Comments »

A call to arms

Friday, March 18th, 2011

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 quick measurement tools,  ship as many/fast as possible to Japan....

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Posted in help | 6 Comments »

Dangerous Prototypes: tireless support

Thursday, December 30th, 2010

Thanks! um, get some sleep... Via the contact form.

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Posted in help | No Comments »

Support is available on Thanksgiving

Wednesday, November 24th, 2010

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)

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Posted in help | 1 Comment »

Programmable memory guide

Thursday, September 16th, 2010

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 identifying and working with these devices. It also covers more...

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Posted in Chips, help | 3 Comments »

Documentation wiki now available

Saturday, July 3rd, 2010

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,  and adding important details from the blog comments. If you...

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Posted in help, News, site | No Comments »

C programmer needed for PIC support!

Wednesday, November 25th, 2009

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 toolkit and libusb. It currently sends byte commands to a...

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Posted in Bus Pirate, help | 8 Comments »

Recent Comments

  • readybrek: Anyone got a any recommendations for a budget-priced hot air station?
  • William: lol I'm happy to waste 3c for each program/debug cycle... but probably not the time spent soldering a new device down to a proto board!...
  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!
  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...