SparkFun will be closed Nov 26th and 27th for the Thanksgiving holiday. Orders placed after 2:00pm MT on the 25th will ship out Monday the 30th.

Member #419717

Member Since: March 16, 2013

Country: United States

  • As an avid swimmer, I have thought it would be cool to put a waterproof RFID tag on my swim goggles and have an arduino or other microcontroller count my laps and show my split times on a waterproof wall mounted display. Using RFID tags would allow multiple swimmers per lane to use the same display.