Ries Twisk / Mbed 2 deprecated JoyStick

HID Joystick - For use with X-Plane or other programs that can read HID JoySticks

Dependencies:   USBDevice mbed-rtos mbed

Fork of JoyStick by Ries Twisk

This is a simple Joystick HID that I use for xplane and a home build yoke + paddels, see this forum with the look and feel of it : http://forums.x-plane.org/index.php?showtopic=70041

The analog input are filtered with a LowPass IIR filter and the digital input's will be derived from the analog input and de-bounced.

The analog values are read at a 1Khz interval and to ensure we don't push the USB stack to much at a maximum rate of 20 updates/sec HID data is send over USB only if any values where changed. The JoyStick will send 16Bit analog values as opposite of 8 bit values that are normally used to increase accuracy of the whole system. This is well noticeable within x-plane!

The JoyStick uses the JoyStick copied from Wim Huiskamp and modified to suite my needs and the MBED RTOS libraries for reading analog inputs, sending debug data over USB and sending HID data, 3 threads in total.

AutoScale.h@5:a0bb17c379ce, 2016-06-22 (annotated)

Committer:
rvt
Date:
Wed Jun 22 12:50:16 2016 +0000
Revision:
5:a0bb17c379ce
Latest

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rvt 5:a0bb17c379ce 1 #ifndef AUTOSCALE_H
rvt 5:a0bb17c379ce 2 #define AUTOSCALE_H
rvt 5:a0bb17c379ce 3
rvt 5:a0bb17c379ce 4 #include "mbed.h"
rvt 5:a0bb17c379ce 5 #include "AnalogFilterInterface.h"
rvt 5:a0bb17c379ce 6
rvt 5:a0bb17c379ce 7 /**
rvt 5:a0bb17c379ce 8 Auto scale a analog input to it's desired min/max values
rvt 5:a0bb17c379ce 9 This is handy of you connect a potentiometer to a analog input where you cannot make the full values, but
rvt 5:a0bb17c379ce 10 your flight simulator expects full values
rvt 5:a0bb17c379ce 11 **/
rvt 5:a0bb17c379ce 12 class AutoScale : public AnalogFilterInterface
rvt 5:a0bb17c379ce 13 {
rvt 5:a0bb17c379ce 14 private:
rvt 5:a0bb17c379ce 15 const long _expectedMax;
rvt 5:a0bb17c379ce 16 const long _expectedMin;
rvt 5:a0bb17c379ce 17 long _currentMax;
rvt 5:a0bb17c379ce 18 long _currentMin;
rvt 5:a0bb17c379ce 19 long _current;
rvt 5:a0bb17c379ce 20 double _a;
rvt 5:a0bb17c379ce 21 double _b;
rvt 5:a0bb17c379ce 22 double _mul;
rvt 5:a0bb17c379ce 23 public:
rvt 5:a0bb17c379ce 24 AutoScale(AnalogFilterInterface *chain,long expectedMin, long expectedMax);
rvt 5:a0bb17c379ce 25 AutoScale(AnalogFilterInterface *chain,long expectedMin, long expectedMax, double multiplier);
rvt 5:a0bb17c379ce 26 ~AutoScale();
rvt 5:a0bb17c379ce 27
rvt 5:a0bb17c379ce 28 virtual void setData(long data);
rvt 5:a0bb17c379ce 29 virtual long getData() const;
rvt 5:a0bb17c379ce 30 private:
rvt 5:a0bb17c379ce 31 void reCalc();
rvt 5:a0bb17c379ce 32 };
rvt 5:a0bb17c379ce 33
rvt 5:a0bb17c379ce 34 #endif