Quadstick FPS, User Manual

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Using External Inputs
External input switches can be connected to the Quadstick. All input signals are “logic level”
signals and require switch contacts suitable for low current applications.
Input Jack with Two Switches
The Inputs jack on the back of the Quadstick is a 3mm stereo connector with the two input
circuits (Tip & Ring) and Shield (or Ground). Two switches may be connected using the
following circuit.
Input Name Description Delay
digital_in_1 Input Jack - Tip to Shield (SW1) instant
digital_in_2 Input Jack - Ring to Shield (SW2) instant
Table 2: External Digital Inputs 1 & 2
When using two Switches in this manner, the Quadstick can detect the switch closures
independently and simultaneously.
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Illustration 5: Digital Input Connections for Two Switches
SW1 SW2
CPU
I/O 1
I/O 2
Tip
Ring
Shield
Input Jack