Search found 106 matches

by JamesCooper
Wed Jan 12, 2011 12:59 pm
Forum: Electronics
Topic: Arduino External Interrupt problem
Replies: 6
Views: 8175

Re: Arduino External Interrupt problem

Here is a great link that explains the challenges of debouncing switched inputs. All switches (even things like relays) will oscillate between on and off as they transition to and from their opened and closed states. This transition time is usually considerably longer than a clock cycle on a microc...
by JamesCooper
Wed Jan 12, 2011 12:37 pm
Forum: Off-Topic
Topic: interactive 3D spherical light displays
Replies: 2
Views: 5971

Re: interactive 3D spherical light displays

I once planned to build a persistence-of-vision display like this. I should still have a sizable bag of RGB LEDs that I bought for it. The plan was to mount it on the front of a kick drum and have animated, color images displayed during a band performance. The hardest part is getting enough signal l...
by JamesCooper
Wed Jan 12, 2011 11:20 am
Forum: General Discussion
Topic: Makerspace physical location
Replies: 15
Views: 14019

Re: Makerspace physical location

It may be a little out of the way for some people, but the size, facilities, and price all seem very reasonable. It is considerably cheaper than the commercial options and it even has bay doors. It looks perfect for our purposes.
by JamesCooper
Wed Jan 12, 2011 11:16 am
Forum: General Discussion
Topic: hackspace starter inventory
Replies: 32
Views: 28304

Re: The "stuff poeple are willing to contribute" thread

I have a basic oscilloscope , logic analyzer , and AVR programmer that I'm happy to lend to the group. I also have boxes of electronic components that are free to a good project, including HD44780-based LCDs, several types of Atmel AVR microcontrollers, wire, relays, and collections of capacitors an...
by JamesCooper
Wed Jan 12, 2011 1:06 am
Forum: General
Topic: What did you tinker with today?
Replies: 15
Views: 14324

Re: What did you tinker with today?

The biggest thing I am tinkering with right now is getting a multi-level backup system for the computers in my home. My fiancée and I both have SSDs as our primary drives, but we also have HDDs for mass storage, and I have the SSD being backed up to the HDD in each computer (for when the inevitable ...
by JamesCooper
Wed Jan 12, 2011 12:41 am
Forum: General Discussion
Topic: Introduce Yourself
Replies: 98
Views: 97445

Re: Introduce Yourself

Hey everybody. I'm James Cooper and I graduated from the U of S in 2007 with degrees in Electrical Engineering and Computer Science. I'm currently working as a software developer for a startup company called Solido Design Automation in Innovation Place. I am friends with and have worked with several...