Search found 184 matches

by rpcelectronics
Fri Sep 27, 2013 8:44 pm
Forum: Projects
Topic: SparkFun Multimeter Kit Project
Replies: 0
Views: 499

SparkFun Multimeter Kit Project

I built this little kit for fun, but it was pretty useless to me in the stock form. A little PCB trimming, some basic mechanical layout, some manual milling and whammo you got a simple home built multimeter. Even works! https://lh5.googleusercontent.com/-3lEB0YbGIoA/UkZP1NR6s_I/AAAAAAAADOw/2m6i4Qx9f...
by rpcelectronics
Tue Jul 23, 2013 7:44 pm
Forum: SparkFun Product Questions
Topic: ARM7 LM3S800?
Replies: 0
Views: 211

ARM7 LM3S800?

I'm not sure this is the place to post this, but I am looking for any new ARM7 LM3S800 QFP package IC's that anyone might have in their stash and willing to part with. Six months ago these went from being abundantly available to non-existent. I am looking to get my hands on 3-5 of them for repair st...
by rpcelectronics
Fri Jul 19, 2013 11:33 am
Forum: SparkFun Product Questions
Topic: Function Generator Project Using Sparkfun Kits
Replies: 3
Views: 738

Re: Function Generator Project Using Sparkfun Kits

lyndon wrote:Very nice. Is that closed-frame supply one of the mini power supplies from TDK-Lambda?
It's a Meanwell. I purchased it from Jameco.
by rpcelectronics
Thu Jul 18, 2013 7:11 pm
Forum: SparkFun Product Questions
Topic: Function Generator Project Using Sparkfun Kits
Replies: 3
Views: 738

Function Generator Project Using Sparkfun Kits

A while back I purchased the Sparkfun function generator kit and frequency counter kit. I had originally seen the Nuxie kits, but they became unavailable and shortly after Sparkfun filled the gap. I built them up, but never did much with them. Over the last year I have made it a side hobby to build ...
by rpcelectronics
Wed Feb 01, 2012 5:13 pm
Forum: SparkFun Site Questions/Comments
Topic: Simple parts inventory program? (free or opensource)
Replies: 21
Views: 31359

Re: Simple parts inventory program? (free or opensource)

I'm kind of late to the party on this, but you mentioned you use Mouser. Mouser is my best friend when it comes to keeping BOM's straight for each product. Will it track your inventory? No, but you can keep a nice online listing of BOM's for each project/product. I have invested a minimal amount of ...
by rpcelectronics
Fri Jan 27, 2012 6:03 pm
Forum: SparkFun Site Questions/Comments
Topic: Recent Shipping Charges
Replies: 4
Views: 1832

Re: Recent Shipping Charges

Paul, thanks for the explanation. That makes more sense now. I'll just have to make sure to work that into my future pricing projections.
by rpcelectronics
Thu Jan 26, 2012 8:57 pm
Forum: SparkFun Site Questions/Comments
Topic: Recent Shipping Charges
Replies: 4
Views: 1832

Recent Shipping Charges

I have been buying parts for my company from SparkFun for a long time. In general, I have been very happy with pricing, delivery time and pretty much any problem I have ever had has been dealt with quickly. However, I have to comment on the recent shipping charges. They are starting to get out of ha...
by rpcelectronics
Thu Jun 30, 2011 7:39 am
Forum: PIC Microcontrollers - Software and Hardware
Topic: PIC Becoming Flakey when bumped
Replies: 16
Views: 1982

Re: PIC Becoming Flakey when bumped

Sorry if this has already been covered, but I didn't have time to read through all of the posts... What kind of power supply are you using? Is it a clean DC source? Are you using any kind of on-board (breadboard, pcb, ect) regulator like a 7805? The reason I ask is because I learned a hard lesson a ...
by rpcelectronics
Wed Apr 06, 2011 12:30 pm
Forum: GPS
Topic: Getting Started On A GPS Tracking Device
Replies: 4
Views: 1202

Re: Getting Started On A GPS Tracking Device

If you want to go the amateur radio (ham) route, APRS is your friend. We just started to offer a brand new tracker called the RTrak-HAB (High Altitude Balloon). We made it as small and as light as possible for use as a high altitude payload, however, it could possibly work for what you are working o...
by rpcelectronics
Thu Mar 17, 2011 5:26 pm
Forum: PCB Design Questions
Topic: Terminals on PCB layout? How to find how to add? EAGLE
Replies: 10
Views: 4859

Re: Terminals on PCB layout? How to find how to add? EAGLE

If you are using Eagle and have the default included libraries installed, look for the con-wago-508 library. If it's not showing, try adding the library from the schematic editor: Library>Use... and select the con-wago-508 library. Now click the Add button again and look for the library you just add...
by rpcelectronics
Mon Feb 14, 2011 12:41 pm
Forum: PCB Design Questions
Topic: Please recommend an etching tank
Replies: 3
Views: 744

Re: Please recommend an etching tank

Back when I was etching boards all of the time at home, I used a fairly large Tupperware container for holding my FCA. I would nuke it a bit in the microwave to heat it BEFORE putting the board in the FCA. The heat and agitation really sped up the process to about 5-10 minutes, depending on the size...
by rpcelectronics
Sat Nov 27, 2010 11:52 am
Forum: PCB Design Questions
Topic: SparkFun Eagle Library Not Showing Up?
Replies: 3
Views: 2639

Re: SparkFun Eagle Library Not Showing Up?

Once you are in the schematic editor, you also have the option of going to the "Library" menu on the menu bar and selecting "Use". A window will pop up, allowing you to navigate to where the library is stored ie. where you put it when you downloaded it. Then, simply double click the library file and...
by rpcelectronics
Sat Nov 20, 2010 2:28 pm
Forum: PCB Design Questions
Topic: PCB Question.
Replies: 3
Views: 802

Re: PCB Question.

I'm not sure if you have considered this, but why not do away with the individual breakouts and just design a board for direct mounting of the sensors? Obviosuly you have some kind of integrated project in mind. Just design a single board around that and include the actual part footprints on the sin...
by rpcelectronics
Sat Nov 13, 2010 9:16 pm
Forum: PCB Design Questions
Topic: Reliable Assembly House
Replies: 4
Views: 893

Re: Reliable Assembly House

I am a former customer of Lil Brother as well. They have not gone away, they have just stopped taking in outside jobs. They explained to me that they had many internal projects that had been on hold while fullfilling outside orders. They decided that they just had to stop taking those in so they cou...
by rpcelectronics
Tue Nov 02, 2010 6:41 am
Forum: PCB Design Questions
Topic: Where to get a custom faceplate engraved
Replies: 3
Views: 2456

Re: Where to get a custom faceplate engraved

If you are looking for a one or two off, contact Joe at Tucson Ent. I found him by doing a quote request through rfqwork.com He has done several milling and engraving jobs for me. Great prices and great work.

Joe's Email: laxfam2925@aol.com