Alejandro Montes / Mbed 2 deprecated Experiment_3-1

IT Tralee Life Long Learning 2020 Instrumentation, Monitoring and Control Module Laboratory Session

Dependencies:   mbed C12832

LAB_2.3.1.cpp@0:d13a1b0d344f, 2020-07-27 (annotated)

Committer:
alejandromontes
Date:
Mon Jul 27 20:23:56 2020 +0000
Revision:
0:d13a1b0d344f
Alejandro Montes Instrumentation Monitoring and Control LAB

Who changed what in which revision?

UserRevisionLine numberNew contents of line
alejandromontes 0:d13a1b0d344f 1 #include "mbed.h"
alejandromontes 0:d13a1b0d344f 2 #include "C12832.h"
alejandromontes 0:d13a1b0d344f 3
alejandromontes 0:d13a1b0d344f 4 InterruptIn joystickcenter(p14);
alejandromontes 0:d13a1b0d344f 5 InterruptIn button(p9);
alejandromontes 0:d13a1b0d344f 6 DigitalOut led(LED1);
alejandromontes 0:d13a1b0d344f 7 DigitalOut flash(LED4);
alejandromontes 0:d13a1b0d344f 8 C12832 lcd(p5, p7, p6, p8, p11);
alejandromontes 0:d13a1b0d344f 9 int x;
alejandromontes 0:d13a1b0d344f 10 Timer debounce;
alejandromontes 0:d13a1b0d344f 11 float t=3000.0;
alejandromontes 0:d13a1b0d344f 12
alejandromontes 0:d13a1b0d344f 13 void flip() {
alejandromontes 0:d13a1b0d344f 14 led = !led; // toggles the led when the joystick button is pressed.
alejandromontes 0:d13a1b0d344f 15 debounce.start(); // starts the timer the first time that the flip function is triggered.
alejandromontes 0:d13a1b0d344f 16 if (debounce.read_ms()>=t){ // compares the timer value to t
alejandromontes 0:d13a1b0d344f 17 x=1; // variable x set to 1 if the timer condition is met
alejandromontes 0:d13a1b0d344f 18 debounce.reset(); // reset the timer if the condition is met.
alejandromontes 0:d13a1b0d344f 19 }
alejandromontes 0:d13a1b0d344f 20 }
alejandromontes 0:d13a1b0d344f 21
alejandromontes 0:d13a1b0d344f 22 int main() {
alejandromontes 0:d13a1b0d344f 23
alejandromontes 0:d13a1b0d344f 24 joystickcenter.rise(&flip); // attach the function address to the rising edge
alejandromontes 0:d13a1b0d344f 25 button.mode(PullUp); // With this, no external pullup resistor needed
alejandromontes 0:d13a1b0d344f 26 button.rise(&flip); // attach the function address to the rising edge
alejandromontes 0:d13a1b0d344f 27
alejandromontes 0:d13a1b0d344f 28 while(1) { // wait around, interrupts will interrupt this!
alejandromontes 0:d13a1b0d344f 29 flash = !flash; // turns LED4 on if off, off if on
alejandromontes 0:d13a1b0d344f 30 wait(0.25); // the instruction to wait for a quarter-second
alejandromontes 0:d13a1b0d344f 31
alejandromontes 0:d13a1b0d344f 32 if(x==1){ // Check if the variable has been set and if so displays a message on the LCD
alejandromontes 0:d13a1b0d344f 33 lcd.locate(0,10);
alejandromontes 0:d13a1b0d344f 34 lcd.printf("Varialble SET!");
alejandromontes 0:d13a1b0d344f 35 wait(0.5);
alejandromontes 0:d13a1b0d344f 36 lcd.cls(); //Clears out the LCD
alejandromontes 0:d13a1b0d344f 37 x=0; //Set the variable back to 0
alejandromontes 0:d13a1b0d344f 38 }
alejandromontes 0:d13a1b0d344f 39 }
alejandromontes 0:d13a1b0d344f 40 }