SKU 1013
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Phidgets
Inc.
Using the Digital Inputs
To wire a switch to a digital input, connect the switch between an input,
labeled 0 to 7, and a provided ground, labeled G. When the switch is
closed, or electrical contact is made, software will report this as a
DigitalInputChanged event, reporting True for this input.
Using the Digital Outputs
Connecting a LED or other circuit to a digital output
is simple. In the case of an LED, wire the anode to
a digital output labeled 0 to 7 on the Interface Kit,
and the cathode to a supplied ground, labeled G.
The 300 ohm resistance is internal to the
PhidgetIntefaceKit 8/8/8, and limits the current that
can flow through the output. This is intended to
protect the device from being damaged if there is a
short to ground or if an LED is used. The output is
intended to drive TTL or CMOS inputs; it is not
designed to provide power to an external circuit.
The digital outputs can be used to switch larger
electrical currents and voltages using devices such
as power transistors, or logic level MOSFETS.
