Schematic Of I/O On The Sprite Circuit Board - MedeaWiz Sprite DV-S1 User Manual

MedeaWiz® Sprite®
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Schematic of I/O on the Sprite circuit board

The Sprite is designed to work with 3 to 5 Volt TTL level serial data.
Do not allow negative voltage to be applied to the inputs.
A negative voltage applied at the input / output will damage the Sprite and void the warranty.
Many serial devices including computers, PLC controls, building lighting controls like AMX and
Crestron and etc. have standard RS232 that will drive the output up to negative 12 volts.
You must use a level convertor with these standard RS232 devices. The MAX3232 or similar will
convert them to the 5 Volt TTL levels for the Sprite.
Micro controllers such as a Basic Stamp, PIC, Atmel or etc. are using serial communications at
3.3V or 5V levels. These can be directly connected to the Sprite.
Pre-made controller boards like the Arduino and Raspberry Pi may have both TTL level at
output pins and also standard RS232 levels on a port designed to connect to a computer. Don't
connect the RS232 port without a level translator. Direct connection to the processor pins is
fine.
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