CA 2.1 modified Code Serial Communications

Dependencies:   mbed

main.cpp

Committer:
vmg
Date:
2020-07-26
Revision:
0:0947800a78ea

File content as of revision 0:0947800a78ea:

#include "mbed.h"

Serial pc(USBTX, USBRX); // tx, rx
PwmOut led(LED1);

float brightness = 0.0;

int main() {
pc.printf("Press 'u' to turn LED1 brightness up, 'd' to turn it down\n");

while(1) {
char c = pc.getc();
if((c == 'u') && (brightness < 0.5)) {
brightness += 0.01;
led = brightness;
pc.putc('^');
}
if((c == 'd') && (brightness > 0.0)) {
brightness -= 0.01;
led = brightness;
pc.putc('v');
}
}
}