Search found 14 matches

by mattmunee
Fri Aug 28, 2015 7:32 am
Forum: PCB Design Questions
Topic: Check my first design?
Replies: 19
Views: 1804

Re: Check my first design?

Thanks for all the help, everyone. I implemented *most* of the suggestions, and I just ordered parts and boards, so I'll give it a go soon. One pressing question that I have from this is concerning the "45-degree rule". Is that still a hard-and-fast rule these days? Also, on a related note, that is ...
by mattmunee
Fri Aug 28, 2015 7:27 am
Forum: PCB Design Questions
Topic: Anyone tried CircuitHub or Macrofab?
Replies: 7
Views: 2344

Re: Anyone tried CircuitHub or Macrofab?

It seems that the price of circuithub and macrpfab are not competitive.I ordered some PCB from EzPCB.For 5pcs 1.5"x1.5" pcb,just USD40 with free shipping.The quality is very good and they can be free assemble 1pc board for me. You can order the same size from OSH Park for half that. So what's assem...
by mattmunee
Mon Aug 17, 2015 5:55 am
Forum: PCB Design Questions
Topic: Check my first design?
Replies: 19
Views: 1804

Re: Check my first design?

Mike,
Thank you so much for the detailed response. This was the type of feedback I was hoping to receive. It will take a little while for me to digest and implement your suggestions, but I'll post a revised design ASAP!
by mattmunee
Fri Aug 14, 2015 2:45 pm
Forum: PCB Design Questions
Topic: Check my first design?
Replies: 19
Views: 1804

Re: Check my first design?

I've attached PDFs, and also modified Eagle files, based on some suggestions I've received. One question I have in particular, is concerning the "Stop Mask" errors when I run the Sparkfun DRU (which I've included in the Eagle Files zip). Yes, I know that double-clicking will show me where the error ...
by mattmunee
Thu Aug 13, 2015 1:58 pm
Forum: PCB Design Questions
Topic: Check my first design?
Replies: 19
Views: 1804

Re: Check my first design?

Yep, I ran it through both Sparkfun and OSH Park DRUs.
by mattmunee
Thu Aug 13, 2015 6:06 am
Forum: PCB Design Questions
Topic: Check my first design?
Replies: 19
Views: 1804

Re: Check my first design?

All, Thanks a lot for the previous notes. I've tried attached a redesign with a few changes. 1. I've tried to hold to a 45-degree trace angle as well as I can. On the fine pitch parts, that's not always possible. 2. I've added "load sharing" capability to the charger circuit. When the USB is attache...
by mattmunee
Thu Aug 06, 2015 4:31 am
Forum: PCB Design Questions
Topic: Check my first design?
Replies: 19
Views: 1804

Re: Check my first design?

mattylad wrote:What is SP1 for? as I see only 1 track on it.
It's my understanding that I can program the Arduino bootloader using SPI and another Arduino.
by mattmunee
Wed Aug 05, 2015 5:21 pm
Forum: PCB Design Questions
Topic: Check my first design?
Replies: 19
Views: 1804

Re: Check my first design?

Parts should be on a 0.1" grid. It looks like most of your parts are on a 0.05" grid, but some of the parts aren't on that grid either. Thanks for taking a look, davep. I guess I wasn't too concerned about having my parts or schematic aligned to a grid, so long as they passed the DRC. Is that a req...
by mattmunee
Wed Aug 05, 2015 5:07 pm
Forum: PCB Design Questions
Topic: Check my first design?
Replies: 19
Views: 1804

Re: Check my first design?

Schematic: Pull up resistor on RESET is not connect to positive. Hold alt and drag it over to attach it to the net. Well, crap. I should've seen that one. Thank you! The tiny lettering prolly won't be printed as it's too small for most houses. So what's a rule of thumb for typical screen print lett...
by mattmunee
Wed Aug 05, 2015 6:32 am
Forum: PCB Design Questions
Topic: Check my first design?
Replies: 19
Views: 1804

Check my first design?

I just finished my first PCB design. I basically just took the designs from a couple different boards and put them together on one board. It's designed to be like the Moteino with an accelerometer and LiPo charger on board. I'd appreciate any pointers on what I've done wrong! In some cases, I opted ...
by mattmunee
Tue Aug 04, 2015 7:38 am
Forum: PCB Design Questions
Topic: Anyone tried CircuitHub or Macrofab?
Replies: 7
Views: 2344

Re: Anyone tried CircuitHub or Macrofab?

It seems that your posts are on the verge of being spam. No need to post in every forum. I don't think that's the case at all. I posted this question here and on Element14, thinking that those were two places where "makers" go. I posted a comment regarding Macrofab to both forums about a week ago w...
by mattmunee
Tue Aug 04, 2015 6:57 am
Forum: PCB Design Questions
Topic: Anyone tried CircuitHub or Macrofab?
Replies: 7
Views: 2344

Anyone tried CircuitHub or Macrofab?

I recently found out about CircuitHub and Macrofab. Both companies seem to be great options for hobbyists. I submitted a design for a small Arduino-type board, about 1.5"x1.5" with 27 components on two sides. Macrofab quotes $31 for a single board, $251 for 10, and $1,847 for 100. CircuitHub quotes ...
by mattmunee
Tue Jul 28, 2015 7:25 pm
Forum: PCB Design Questions
Topic: PCB assembly service?
Replies: 7
Views: 3162

Re: PCB assembly service?

I thought this was useful information, so I'd like to post it on this forum, even though it's rather old. I'm currently working on my very first PCB project, and I've gone to a lot of the sites for quotes. I have a relatively simple board, with an ATMega, and accelerometers, and a LiPo charger, with...
by mattmunee
Sat Feb 28, 2015 8:39 am
Forum: SparkFun Product Questions
Topic: LSM9DS0 IMU Breakout problems
Replies: 16
Views: 4399

Re: LSM9DS0 IMU Breakout problems

I know this post is a bit old, but I wanted to post on my status. I ran into the exact same problem. After reading this forum, I had a similar problem. I was using an 3.3V FTDI adapter from LowPowerLab that has worked interchangeably with a similar Sparkfun adapter on other projects. However, in thi...