This is the production run of our Halloween 2008 singing pumpkins rig. It's driven by a 8 channel parallel port relay board. The only bug was with channel 1, it didn't light. I think the relay may be bad. The end result is still pretty cool. Instructable at http://www.instructables.com/id/Singing_PumpkinsParallel_Port_Relay_Box/
This is really good but it would terrify little kids. Good job
rubyredmedia 10 months ago