Pololu Wixel - Manual (Page 46)

This converted Tandy Deluxe Joystick is now
usable as a USB Human Interface Device.
Caution: The Wixel’s I/O lines are not 5V tolerant. You must use level-shifters, diodes, or voltage dividers
to connect the Wixel to outputs from 5V systems. Also, avoid drawing more current from an I/O line than
it can provide (see the discussion of P1_0 and P1_1 in
Section 1.a ). Avoid connecting multiple output pins
together.
Versions
• I/O Repeater App v1.3 [http://www.pololu.com/file/download/io-repeater-v1.3.wxl?file_id=0J562] (22k wxl), released
2012-07-03: Adds randomness to the radio packet transmission timing to prevent two transmitting Wixels from
being synchronized if they start up at the same time.
• I/O Repeater App v1.1 [http://www.pololu.com/file/download/io-repeater-v1.1.wxl?file_id=0J500] (20k wxl), released
2011-07-26: Fixes a bug in v1.0 which prevented P1_6 and P1_7 from being used as outputs.
• I/O Repeater App v1.0 [http://www.pololu.com/file/download/io-repeater-v1.0.wxl?file_id=0J465] (18k wxl), released
2011-03-25: Initial release.
9.g. Joystick App
Overview
This app allows a Wixel connected to a computer to be
used as a joystick. Readings from the Wixel’s analog and
digital input pins can represent up to six analog axes and
16 digital buttons or switches. The Wixel appears to the
computer as a standard USB Human Interface Device
(HID); after the Wixel has been configured, no driver
installation is necessary to use the joystick. With a Wixel
running the Joystick App, you can easily build a custom
USB input device or convert an existing device into a USB
peripheral,
as this sample project
[http://www.pololu.com/docs/0J59] shows.
Pololu Wixel User's Guide © 2001–2014 Pololu Corporation
9. Wixel Apps Page 46 of 64