Rahul Maran / Mbed 2 deprecated Joystick

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Dependencies:   mbed

Dependents:   4180Lab1

main.cpp@0:55bb59452ebc, 2016-09-02 (annotated)

Committer:
rmaran6
Date:
Fri Sep 02 17:35:19 2016 +0000
Revision:
0:55bb59452ebc
joystick

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rmaran6 0:55bb59452ebc 1 #include "mbed.h"
rmaran6 0:55bb59452ebc 2
rmaran6 0:55bb59452ebc 3 BusOut mbedleds(LED1,LED2,LED3,LED4);
rmaran6 0:55bb59452ebc 4 //BusOut/In is faster than multiple DigitalOut/Ins
rmaran6 0:55bb59452ebc 5
rmaran6 0:55bb59452ebc 6 class Nav_Switch
rmaran6 0:55bb59452ebc 7 {
rmaran6 0:55bb59452ebc 8 public:
rmaran6 0:55bb59452ebc 9 Nav_Switch(PinName up,PinName down,PinName left,PinName right,PinName fire);
rmaran6 0:55bb59452ebc 10 int read();
rmaran6 0:55bb59452ebc 11 //boolean functions to test each switch
rmaran6 0:55bb59452ebc 12 bool up();
rmaran6 0:55bb59452ebc 13 bool down();
rmaran6 0:55bb59452ebc 14 bool left();
rmaran6 0:55bb59452ebc 15 bool right();
rmaran6 0:55bb59452ebc 16 bool fire();
rmaran6 0:55bb59452ebc 17 //automatic read on RHS
rmaran6 0:55bb59452ebc 18 operator int ();
rmaran6 0:55bb59452ebc 19 //index to any switch array style
rmaran6 0:55bb59452ebc 20 bool operator[](int index) {
rmaran6 0:55bb59452ebc 21 return _pins[index];
rmaran6 0:55bb59452ebc 22 };
rmaran6 0:55bb59452ebc 23 private:
rmaran6 0:55bb59452ebc 24 BusIn _pins;
rmaran6 0:55bb59452ebc 25
rmaran6 0:55bb59452ebc 26 };
rmaran6 0:55bb59452ebc 27 Nav_Switch::Nav_Switch (PinName up,PinName down,PinName left,PinName right,PinName fire):
rmaran6 0:55bb59452ebc 28 _pins(up, down, left, right, fire)
rmaran6 0:55bb59452ebc 29 {
rmaran6 0:55bb59452ebc 30 _pins.mode(PullUp); //needed if pullups not on board or a bare nav switch is used - delete otherwise
rmaran6 0:55bb59452ebc 31 wait(0.001); //delays just a bit for pullups to pull inputs high
rmaran6 0:55bb59452ebc 32 }
rmaran6 0:55bb59452ebc 33 inline bool Nav_Switch::up()
rmaran6 0:55bb59452ebc 34 {
rmaran6 0:55bb59452ebc 35 return !(_pins[0]);
rmaran6 0:55bb59452ebc 36 }
rmaran6 0:55bb59452ebc 37 inline bool Nav_Switch::down()
rmaran6 0:55bb59452ebc 38 {
rmaran6 0:55bb59452ebc 39 return !(_pins[1]);
rmaran6 0:55bb59452ebc 40 }
rmaran6 0:55bb59452ebc 41 inline bool Nav_Switch::left()
rmaran6 0:55bb59452ebc 42 {
rmaran6 0:55bb59452ebc 43 return !(_pins[2]);
rmaran6 0:55bb59452ebc 44 }
rmaran6 0:55bb59452ebc 45 inline bool Nav_Switch::right()
rmaran6 0:55bb59452ebc 46 {
rmaran6 0:55bb59452ebc 47 return !(_pins[3]);
rmaran6 0:55bb59452ebc 48 }
rmaran6 0:55bb59452ebc 49 inline bool Nav_Switch::fire()
rmaran6 0:55bb59452ebc 50 {
rmaran6 0:55bb59452ebc 51 return !(_pins[4]);
rmaran6 0:55bb59452ebc 52 }
rmaran6 0:55bb59452ebc 53 inline int Nav_Switch::read()
rmaran6 0:55bb59452ebc 54 {
rmaran6 0:55bb59452ebc 55 return _pins.read();
rmaran6 0:55bb59452ebc 56 }
rmaran6 0:55bb59452ebc 57 inline Nav_Switch::operator int ()
rmaran6 0:55bb59452ebc 58 {
rmaran6 0:55bb59452ebc 59 return _pins.read();
rmaran6 0:55bb59452ebc 60 }
rmaran6 0:55bb59452ebc 61
rmaran6 0:55bb59452ebc 62 Nav_Switch myNav( p9, p6, p7, p5, p8); //pin order on Sparkfun breakout
rmaran6 0:55bb59452ebc 63
rmaran6 0:55bb59452ebc 64 int main()
rmaran6 0:55bb59452ebc 65 {
rmaran6 0:55bb59452ebc 66 while(1) {
rmaran6 0:55bb59452ebc 67 //with pullups a button hit is a "0" - "~" inverts data to leds
rmaran6 0:55bb59452ebc 68 mbedleds = ~(myNav & 0x0F); //update leds with nav switch direction inputs
rmaran6 0:55bb59452ebc 69 if(myNav.fire()) mbedleds = 0x0F; //special all leds on case for fire (center button)
rmaran6 0:55bb59452ebc 70 //or use - if(myNav[4]==0) mbedleds = 0x0F; //can index a switch bit like this
rmaran6 0:55bb59452ebc 71 wait(0.02);
rmaran6 0:55bb59452ebc 72 }
rmaran6 0:55bb59452ebc 73 }
rmaran6 0:55bb59452ebc 74