Interlink Electronics Micro Joystick - Manual (Page 5)

www.interlinkelectronics.com
3
MicroJoystick
Integration Guide
4.0 Features and Operation
4.1 Component Description
The standard MicroJoystick system is a component-level solution consisting of a joystick, a
microcontroller, and a rubber cap. The integrator provides the interconnect cable and a few
simple electronic components (to support the microcontroller). Customized turnkey modules
can be designed that simplify integration and improve time-to-production. Custom interconnect
cables, designed to connect the joystick or module to system boards, can also be supplied by
Interlink Electronics.
MicroJoystick Caps
The typical cap which Interlink Electronics supplies is made of rubber and is designed to slip over
the top of the MicroJoystick’s actuating stick. Custom, molded hard-plastic caps can be designed
to produce a “control-disk” or “control-sphere” interface. Since the design of the cap can influence
the cursor response, fine tuning of the mouse speed may be required. This is accomplished by
changing R1 in the recommended schematic.
Standard Cap Control Disk Cap Control Sphere Cap
(Custom Example) (Custom Example)
4.2 Features
The MicroJoystick has many features and benefits that make it a versatile pointing solution for
a variety of applications.
Unparalleled Noise and ESD Properties
The MicroJoystick’s low-gain electrical circuitry is inherently resistant to electrical noise and
electro static discharge (ESD). In addition, the MicroJoystick’s simple, no-moving-parts design
makes it highly resistant to vibration and mechanical noise.
Unsurpassed Quality and Reliability
The MicroJoystick reliability is a benefit of its no-moving parts design – making it virtually
maintenance free and highly resistant to contamination. MicroJoystick pointing solutions are rated
to lifetimes in excess of five million cycles.