25 November 2008
7 PM – 9 PM (ET)
Schedule for next meeting Alden Hart : Practical Microcontroller LED Designs – lessons and gotchas from prototype to production
LED projects are a popular topic these days. This talk covers some microcontroller LED projects Alden has done ranging from at-home projects to manufactured units. Alden will have a variety of projects that should perhaps not have been attempted – such as Balls on Sticks and The Low Rider Christmas, Silent Music Box, and 10mi2 Lucites.
The talk will cover practical lessons that resulted, including:
- Color theory, transformation and perception as related to LEDs
- LED driving and dimming techniques, multiplexing – and some workarounds to common problems
- PIC16F917 assembly programming, optimization, and tricks. Open sourcing the control stack from these projects.
- How can this all be done as cheaply as possible?
Time permitting we may also get into some of the more arcane details about circuit board design, manufacture, and assembly; surface mount at home, mechanical considerations, and other topics.
Alden is a hardware and software engineer who started doing gate-level design in the late ’70s and has been working his way up the stack ever since…Only to fall down again a few years ago with a renewed interest in microcontrollers and electronics. His company Ten Mile Square is a small group of technology practitioners who specialize in the disciplines surrounding media and web systems.