I fiddled with my printer driver and got Eagle(PCB) to print to it. The result was that I was able to use Eagle PCB to create the file I needed to cut out the...
News flash: In an attempt to gain independence, the robot known as Research 3 began wild and unexpected movement. "I grabbed the robot and attempted to subdue...
Jeffry Sampson
jsampson@...
Jul 5, 2007 3:36 pm
959
Let's hear it for BIG RED buttons (that are easily accessible) Terry Schumacher Senior Consultant ApexIT/Dynamic Information Systems ...
Terry Schumacher
Terry.Schumacher@...
Jul 5, 2007 4:11 pm
960
Anyone have a use for a big woofer cone assembly?? I have a 18" woofer that the magnet broke off of. HUGE magnet you can have but the speaker will never work...
Hi there I'm going to be heading out West to Glacier National Park with my two kids the end of July. Anybody in the Twin Cities area have a handheld GPS...
Terry Schumacher
Terry.Schumacher@...
Jul 5, 2007 9:52 pm
962
... I seem to have exceeded a torque spec for my motor. All the teeth are sheared off one of the gears. It was the small gear of the final out stage. So I'll...
Jeffry Sampson
jsampson@...
Jul 6, 2007 12:19 am
963
I got this surplus trolling motor at Central Sales in Duluth about a decade back. My plans for it are always stumped by the wiring coming out of it. A heavy...
This looks like a motor for the wind power generator. Use it to make a remote controlled "tubo charged speed boat".or "submersive scuba motor".. just my...
The extra wires may be a temperature sensor. Check them with an ohmmeter. Then see if changes if you put it in the refridgerator. If it is temperature, it may...
Jeffry Sampson
jsampson@...
Jul 9, 2007 4:36 pm
966
A Google search revealed this URL with a wiring diagram: (it's a long one!) ...
It looks like another month has passed. This Thursday, the 19th, is the third Thursday this month. I don't see any events Thursday night, according to the...
Jeffry Sampson
jsampson@...
Jul 17, 2007 2:51 am
969
Hello all, I've never programmed a microprocessor but I'm looking to start. My question is which one should I start with? It needs to be fairly inexpensive,...
... Up until about a month ago, I was planning on using an Atmel ARM7 microcontroller on a board of my own design. Then I talked a lot with Bill at one of the...
Pete Bergstrom ... First, Greg, this question gets asked often, "Which microprocessor do I use?" and I have tried to answer it many times on different forums....
I can vouch for that 8051 board of Randy's. It was the first microprocessor board I purchased, and I learned a lot from it. At $39 it was hard to beat. ...
... Randy, thanks for your question. I'm guessing my situation is a bit out of the mainstream for robotics, as I'm incorporating a PC motherboard into my robot...
... The problems I was talking about are specific to the AT91Sam7S64 part. I still think that it is a good series and I see that the other Atmel parts don't...
In embedded programs I clear the ram at startup, but you don't have that kind of control in larger robotic projects where you are using PC's. I wrote a...
I re-soldered the accelerometer boards that Jeff S Got. A LCC (Leadless Chip Carrier) package is a small square package without pins. These 40 pin parts have...
Definitely take a look at the propeller chip from Parallax. There's a lot of features built in and a pretty good price, and there support for there products is...
That _is_ magic. I forgot that you can derive a class from a structure, and it's cool that the compiler will take care of redirecting the location of "this"...
... Personally speaking, I don't have a need for 8051 based processors or EPROM based boards. I do have all the stuff for EPROMs. UV erasers and programmers,...
Jeffry Sampson
jsampson@...
Jul 23, 2007 4:01 pm
980
... Making the structure a member of the class means that you have to add the name each time you use it. for example: CClsMyClass ClsMyClass; int Count =...
... I use the 8-bit Atmel AVR processors. Their processor core is compatible on parts ranging from 8-pins to 64. They have some fairly good peripherals. I tend...
Jeffry Sampson
jsampson@...
Jul 23, 2007 7:13 pm
982
I'm glad somebody asked which processor to use. And I'm glad Bill posted this list of ARM processors. I'm not ready to switch processors yet, but... My current...
Jeffry Sampson
jsampson@...
Jul 23, 2007 7:15 pm
983
... Another thing occurred to me. I'm supposed to learn the ColdFire parts for work. The one we are going to use is the M52223 which has fast USB on chip. (But...
Jeffry Sampson
jsampson@...
Jul 23, 2007 11:19 pm
984
... On the device side USB is not that hard to support depending on the protocol you are using. You have several options. 1. Make the device emulate a USB...
Hi Bill, ... Use some solder wick to remove the excess solder on the center pad. You should be able to pick up all of the excess solder and just leave tinned...
Hi Jeff, ... I wrote a 57.6 kbaud downloader: <http://davehylands.com/Robotics/MRM/> You'd be able to transfer data alot faster using SPI. -- Dave Hylands ...
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