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by problemchild
Sun Jan 15, 2012 5:07 pm
Forum: Other projects
Topic: Do I need a gertboard to run a servo
Replies: 47
Views: 11819

Re: Do I need a gertboard to run a servo

Nice mention of an opto isolator form "guru". Only 20p or so from RAPID and prety much insulate your 'PI from anything and everything. You could drive 8 servos/selays from the PI via opto-isolators saving a lot of bother
by problemchild
Sun Jan 15, 2012 5:03 pm
Forum: Other projects
Topic: Do I need a gertboard to run a servo
Replies: 47
Views: 11819

Re: Do I need a gertboard to run a servo

<t>The answer is definitely not. Any old controller PIC/AVR/ARM Arduino or what ever will be more than suitable for this task. I bought a load of Arduinos for our Linux group not because they were the best just that they are popular and in my case only £12 from EBAY  inc postage.  Most systems will ...
by problemchild
Tue Jan 03, 2012 7:47 pm
Forum: Off topic discussion
Topic: Soldering iron recommendations
Replies: 44
Views: 16143

Re: Soldering iron recommendations

<t>Yes kits tend to cost more than the PI but that's pretty much par for the course.<br/> <br/> Also I'd get a 50W + Iron because they can deliver a better rate of heating. 15w units are just too easy to quench the heat out of. Just because the iron has a large wattage doesn't make it crude and "hot...
by problemchild
Tue Jan 03, 2012 1:47 am
Forum: Off topic discussion
Topic: Soldering iron recommendations
Replies: 44
Views: 16143

Re: Soldering iron recommendations

<t>I too did the hot air gun trick I don't think that rosin or any flux would of really helped in this sledgehammer of an art . 100's of memory boards actually put me through Uni '  !!<br/> <br/> More to the point I wouldn't recommend any technique used for that as a valid way to learn to solder pro...
by problemchild
Tue Jan 03, 2012 1:19 am
Forum: Off topic discussion
Topic: Soldering iron recommendations
Replies: 44
Views: 16143

Re: Soldering iron recommendations

<r>Dave Jones' EEVBLOG is a great resource for source things especially the episode(s) he discusses the perfect beginner's Lab kit. Personally I have a Xytronic 60W solder station which I now use most and an Antex TCS temperature controlled iron  which is now at least 25 years old and was in every d...
by problemchild
Wed Dec 28, 2011 3:48 pm
Forum: Other projects
Topic: RaspberryPi + GPS
Replies: 20
Views: 11624

Re: RaspberryPi + GPS

BTW Maplin do a nice USB serial GPS stick which works under Linux for £19 !!
by problemchild
Wed Dec 28, 2011 3:46 pm
Forum: Other projects
Topic: RaspberryPi + GPS
Replies: 20
Views: 11624

Re: RaspberryPi + GPS

The GPS is seen as a serial device pure and simple no mysterious black magic!

If no USB tty device or similar is created then you need to get USB serial support sorted out  GPSD will allow multiple access to the same GPS data.

Best of luck with your project!
by problemchild
Thu Dec 22, 2011 11:54 pm
Forum: General discussion
Topic: There are some VERY INTERESTING pics on the front page right now...
Replies: 34
Views: 5414

Re: There are some VERY INTERESTING pics on the front page right now...

<r>Great to see a real deal board, would be nice to specify the model of the two connectors and preferably say an RS/Farnell number if you can so folks can go out and be sure they get the right ones. It will be nice to see the other 9900 maybe in a month or so ????? <E>:)</E><br/> <br/> All the best...
by problemchild
Wed Dec 21, 2011 3:54 pm
Forum: Off topic discussion
Topic: Watching, and waiting.......
Replies: 9
Views: 1294

Re: Watching, and waiting.......

It as become rather a ritual although I'm getting somewhat bored with it now.
No doubt whe I finaly give up it will sudenly appear in my mail box
by problemchild
Mon Dec 19, 2011 1:37 pm
Forum: Other projects
Topic: Do I need a gertboard to run a servo
Replies: 47
Views: 11819

Re: Do I need a gertboard to run a servo

<r>I'm certainly no Arduino Fan boy but I think that for this kind of task you would be much better getting an Arduino or even an Arduino nano and use that to do your servo control.<br/> Everything has already been done for you and there is an IDE in which you can develop your code on most platforms...
by problemchild
Wed Dec 14, 2011 10:39 pm
Forum: Other projects
Topic: Break out board (GPIO, SPI, I2C, and UART)
Replies: 189
Views: 37204

Re: Break out board (GPIO, SPI, I2C, and UART)

<r>For the likes of I2C and talking to NXT sensors it looks like they use 3.3V I2c so really in many ways all you need is a connector and a couple of resistors.<br/> <br/> Looks like a lot of work as already been done actually driving certain sensors in Linux<br/> <URL url="http://www.rjmcnamara.com...
by problemchild
Wed Dec 14, 2011 10:18 pm
Forum: Other projects
Topic: MoPI a Prototyping PCB for the PI
Replies: 13
Views: 2561

Re: MoPI a Prototyping PCB for the PI

<r>Depending on where you put the pins and sockets you could put this board on top of the 'PI rather than underneath. Underneath you would not have space for the breadboard. This is meant predominantly for folk to solder to. If you want a breadboard then buy one you can get one like the one in your ...
by problemchild
Wed Dec 14, 2011 2:32 pm
Forum: Other projects
Topic: Break out board (GPIO, SPI, I2C, and UART)
Replies: 189
Views: 37204

Re: Break out board (GPIO, SPI, I2C, and UART)

<r>If someone just wants a basic board with just locations to do your own thing then I miught suggest what we have been doing:<br/> <br/> <URL url="http://www.raspberrypi.org/for.....038;t=1483">http://www.raspberrypi.org/for.....038;t=1483</URL><br/> <br/> Might be of intereest to folks who want to...
by problemchild
Sun Dec 11, 2011 8:23 pm
Forum: Other projects
Topic: MoPI a Prototyping PCB for the PI
Replies: 13
Views: 2561

Re: MoPI a Prototyping PCB for the PI

<r>Yes the Idea is for non permanent designs you would use pins on the 'PI and Sockets on the MoPi either just on the GPIO connector or GPIO and GPU JTAG.<br/> This would be quite strong enough for most bench work. You could solder it down just using the Pins if you need a permanent fit, however bee...
by problemchild
Sun Dec 11, 2011 11:58 am
Forum: Other projects
Topic: MoPI a Prototyping PCB for the PI
Replies: 13
Views: 2561

Re: MoPI a Prototyping PCB for the PI

Cool because we would very much like to be making them ;)

Quote from hstubbs3 on December 11, 2011, 08:56
Oh. Wow... Thinking I will need one...
by problemchild
Sun Dec 11, 2011 11:46 am
Forum: Other projects
Topic: MoPI a Prototyping PCB for the PI
Replies: 13
Views: 2561

Re: MoPI a Prototyping PCB for the PI

<t>I agree except the point is that you chose what you need and put it in the board.<br/> What I think is required is not necessarily what you want. For example a buffer designed to do 3.3-5V level conversion to talk to TTL probably wont be suitable to power an LED or motor controller. By leaving su...
by problemchild
Sun Dec 11, 2011 2:28 am
Forum: Off topic discussion
Topic: Its Gone Awfully Quiet...
Replies: 80
Views: 6542

Re: Its Gone Awfully Quiet...

<t>I'm sure October+++ as been mentioned. I'm sure that they wanted less "+++" just like us but releasing a device where stuff works and there's already a set of working Software(Linux distros etc) is more important than just the board it's self. In reality there's not much to this board and I'm sur...
by problemchild
Sun Dec 11, 2011 2:11 am
Forum: Other projects
Topic: MoPI a Prototyping PCB for the PI
Replies: 13
Views: 2561

Re: MoPI a Prototyping PCB for the PI

<r>This is a small prototyping board it actually was meant to fit underneath the 'PI and provides a location for an additional DCDC regulator and also some feet or stand offs to keep it's tootsies off the deck <E>;)</E>. This is the underside of the Board and that's why the connector is in the "wron...
by problemchild
Sun Dec 11, 2011 12:42 am
Forum: Other projects
Topic: MoPI a Prototyping PCB for the PI
Replies: 13
Views: 2561

Re: MoPI a Prototyping PCB for the PI

<r>Thanks glad you liked it! I merely thought about what I'd like to do with the 'PI (now around 80+ projects that I'd like to do some kind of open source/ book release on) and this should allow me to knock up designs quickly and with minimum fuss! Obviously without a 'PI that's all "'Pi in the sky"...
by problemchild
Sun Dec 11, 2011 12:11 am
Forum: Other projects
Topic: MoPI a Prototyping PCB for the PI
Replies: 13
Views: 2561

Re: MoPI a Prototyping PCB for the PI

<r>[]Just finished off our first rev of a Prototype board (MoPI) which allows folk to prototype with the 'PI ( when it comes out <E>;)</E> ) just like the protoshield does for the Arduino. Additionally it allows you to power the design and/or the 'PI vi a larger Regulator module (EBAY special) or di...
by problemchild
Sat Dec 10, 2011 2:18 am
Forum: General discussion
Topic: News articles and blog posts about Raspberry Pi
Replies: 1021
Views: 191600

Re: News articles and blog posts about Raspberry Pi

<r>Just finished off our first rev of a Prototype board (MoPI) which allows folk to prototype with the 'PI ( when it comes out <E>;)</E> ) just like the protoshield does for the Arduino. Additionally it allows you to power the design and/or the 'PI vi a larger Regulator module (EBAY special) or dire...
by problemchild
Thu Oct 06, 2011 9:32 am
Forum: General discussion
Topic: Vote For Red Circuit Boards
Replies: 49
Views: 6409

Re: Vote For Red Circuit Boards

ok a vote for the brightest tart red PCB possible. Failing that Black.
I Assume there's a certain amount of gold flashing on the PCB any way as many high density and BGA carrying PCBs require it for a nice flat board anyway.

Best of luck with the production !

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