Handles reading and scaling the analog inputs from a simple 2-axis joystick with a pushbutton. Can also attach rise and fall interrupts to the button.
Dependents: joystickdeneme NOKIA_KOMBAT projekat
Purpose
Simple library for reading an analog joystick like those found on game console controllers. These joysticks usually also have a pushbutton.
Example
Joystick Library Example
// Joystick Library Example // // Reads the joystick x axis and fades green and red LEDs in response. // The blue LED is turned on while the pushbutton is pressed. #include "mbed.h" #include <Joystick.h> // target is the KL25Z #define PIN_JOYX PTB0 // A0 #define PIN_JOYY PTB1 // A1 #define PIN_JOYA PTB2 PwmOut led_R(LED1); PwmOut led_G(LED2); PwmOut led_B(LED3); Joystick j(PIN_JOYX, PIN_JOYY, PIN_JOYA); // call on joystick button release void jrise(void) { led_B = 1.0f; } // call on joystick button press void jfall(void) { led_B = 0.0f; } int main () { // setup led_R = 1.0f; led_G = 1.0f; led_B = 1.0f; joypos p; // joystick position // attach joystick button interrupts j.rise(&jrise); j.fall(&jfall); float fade = 0.0f; // loop while (1) { p = j.read(); fade = p.x; if (fade > 0.0) { led_R = 1.0f; led_G = 1.0f - (float)fade; } else if (fade < 0.0) { led_R = 1.0f + (float)fade; led_G = 1.0f; } else { led_R = 1.0f; led_G = 1.0f; } wait(0.01); } }