Friday, July 10, 2009

Building the DIY Fireworks Demo

Last week we showed you a great demo that set off fireworks to music. This week, we show you how to wire up the project.

Note that the microphone is a three-wire mic. This means that you must power it by plugging it into an analog output and setting that voltage out to an appropriate level for the mic you have. The other two wires are wired into the positive and negative terminals of an analog input channel so that they can send data back to the 6009 device.

The digital out line that we used is port 0 line 0, but you can use any of the digital I/O lines for the current output.

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