The idea of the device is simple. You press the button, and it vibrates quickly to notify you that it is armed. Then after 30 seconds it vibrates again to say the time is up. I might modify it later so that two quick pushes sets a 60 second timer, but I'm starting simple.
Handheld Vibrating Timer Prototype using Trinket
There are times while exercising when it would be useful to have a simple one-button hand-held 30-second timer that vibrates. At least that's what my wife tells me. This seemed like a good excuse to play with Adafruit's mini microcontroller called "Trinket". These are an $8 tiny board built around the Atmel ATtiny85.
Subscribe to:
Posts (Atom)
Blog Archive
- May 2019 (3)
- November 2015 (1)
- September 2015 (1)
- May 2014 (1)
- March 2014 (1)
- February 2014 (2)
- January 2014 (1)
- September 2013 (2)
- August 2013 (1)
- April 2013 (3)
- March 2013 (2)
- February 2013 (1)
- January 2013 (1)
- December 2011 (1)
- October 2011 (1)
- September 2011 (12)
- July 2011 (2)
- March 2011 (1)
- January 2010 (2)
- December 2009 (2)
- December 2008 (4)
- November 2008 (4)
- October 2006 (1)
- September 2006 (1)
- August 2006 (1)
- February 2006 (1)
- January 2006 (3)
