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MedeaWiz® Sprite
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External Control - Wiring for Serial Communications to the I/O Port
The Sprite can be controlled by a Show Control or micro controller like a Basic Stamp, PIC,
Atmel, Arduino, Raspberry Pi, Prop-1 or etc. using serial communications at 3.3V or 5V levels.
Note that RS232 levels from a PC or PLC serial port will require a level translator like the
MAX3232 series. Do not allow negative voltage below ground to be applied to the Sprite.
The Sprite can supply 5V DC at up to 100 mA to power your micro controller.
Alternately, you can power the Sprite from your controller. You must have a 5 volt DC regulated
supply at 500mA. Use 26AWG wire or larger. The supplied A/V cable is not suitable. Do not use
the Sprite's included power supply together with an external power supply.
You can also use the included A/V cable in the I/O port. Use the Red RCA to send commands to
the Sprite, the yellow RCA for the Sprite to report back to your control, and the white RCA for
5V power from the Sprite. We suggest you cover the unused RCA plugs with electrical tape to
avoid shorting the power supply and burning the internal fuse.
If you get a cable elsewhere, check to see that the wiring is the same. We have seen some
cables where the red, yellow and white RCA are wired to different poles on the 3.5mm plug.
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