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ECE 4180 Lab 1 Part 4
Diff: main.cpp
- Revision:
- 0:bf289fbff1dd
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Tue Oct 09 00:34:03 2018 +0000 @@ -0,0 +1,73 @@ +#include "mbed.h" + +BusOut mbedleds(LED1,LED2,LED3,LED4); +//BusOut/In is faster than multiple DigitalOut/Ins + +class Nav_Switch +{ +public: + Nav_Switch(PinName up,PinName down,PinName left,PinName right,PinName fire); + int read(); +//boolean functions to test each switch + bool up(); + bool down(); + bool left(); + bool right(); + bool fire(); +//automatic read on RHS + operator int (); +//index to any switch array style + bool operator[](int index) { + return _pins[index]; + }; +private: + BusIn _pins; + +}; +Nav_Switch::Nav_Switch (PinName up,PinName down,PinName left,PinName right,PinName fire): + _pins(up, down, left, right, fire) +{ + _pins.mode(PullUp); //needed if pullups not on board or a bare nav switch is used - delete otherwise + wait(0.001); //delays just a bit for pullups to pull inputs high +} +inline bool Nav_Switch::up() +{ + return !(_pins[0]); +} +inline bool Nav_Switch::down() +{ + return !(_pins[1]); +} +inline bool Nav_Switch::left() +{ + return !(_pins[2]); +} +inline bool Nav_Switch::right() +{ + return !(_pins[3]); +} +inline bool Nav_Switch::fire() +{ + return !(_pins[4]); +} +inline int Nav_Switch::read() +{ + return _pins.read(); +} +inline Nav_Switch::operator int () +{ + return _pins.read(); +} + +Nav_Switch myNav( p9, p6, p7, p5, p8); //pin order on Sparkfun breakout + +int main() +{ + while(1) { + //with pullups a button hit is a "0" - "~" inverts data to leds + mbedleds = ~(myNav & 0x0F); //update leds with nav switch direction inputs + if(myNav.fire()) mbedleds = 0x0F; //special all leds on case for fire (center button) + //or use - if(myNav[4]==0) mbedleds = 0x0F; //can index a switch bit like this + wait(0.02); + } +}