main.cpp

00001 #include "mbed.h"
00002 
00003 Serial pc(USBTX, USBRX); // tx, rx
00004 Serial device(p13, p14);  // tx, rx
00005 DigitalOut myled1(LED1);
00006 DigitalOut myled2(LED2);
00007 PwmOut IRLED(p21);
00008 //IR send and receive demo
00009 //LED1 and LED2 indicate TX/RX activity
00010 //Character typed in PC terminal application sent out and returned back using IR transmitter and receiver
00011 
00012 int main() {
00013     //IR Transmit code
00014     IRLED.period(1.0/38000.0);
00015     IRLED = 0.5;
00016     //Drive IR LED data pin with 38Khz PWM Carrier
00017     //Drive IR LED gnd pin with serial TX
00018     device.baud(2400);
00019     while(1) {
00020         if(pc.readable()) {
00021             myled1 = 1;
00022             device.putc(pc.getc());
00023             myled1 = 0;
00024         }
00025         //IR Receive code
00026         if(device.readable()) {
00027             myled2 = 1;
00028             pc.putc(device.getc());
00029             myled2 = 0;
00030         }
00031     }
00032 }