M A / Mbed 2 deprecated nucleo_pwm_serial_keyboard

Increase or decrease LED brightness with keyboard via serial port.

Dependencies:   mbed

main.cpp@0:f83df7d9548d, 2015-03-10 (annotated)

Committer:
mbedaddict
Date:
Tue Mar 10 08:59:45 2015 +0000
Revision:
0:f83df7d9548d
Pwm in order to increase or decrease brightness with keyboard keys.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedaddict 0:f83df7d9548d 1 #include "mbed.h"
mbedaddict 0:f83df7d9548d 2
mbedaddict 0:f83df7d9548d 3 Serial pc(USBTX, USBRX); // tx, rx
mbedaddict 0:f83df7d9548d 4 PwmOut led(LED1);
mbedaddict 0:f83df7d9548d 5
mbedaddict 0:f83df7d9548d 6 float brightness = 0.0;
mbedaddict 0:f83df7d9548d 7
mbedaddict 0:f83df7d9548d 8 int main()
mbedaddict 0:f83df7d9548d 9 {
mbedaddict 0:f83df7d9548d 10 pc.printf("Press 'u' to turn LED1 brightness up, 'd' to turn it down\n");
mbedaddict 0:f83df7d9548d 11
mbedaddict 0:f83df7d9548d 12 while(1) {
mbedaddict 0:f83df7d9548d 13 char c = pc.getc();
mbedaddict 0:f83df7d9548d 14 if((c == 'u') && (brightness < 0.5)) {
mbedaddict 0:f83df7d9548d 15 brightness += 0.01;
mbedaddict 0:f83df7d9548d 16 led = brightness;
mbedaddict 0:f83df7d9548d 17 }
mbedaddict 0:f83df7d9548d 18 if((c == 'd') && (brightness > 0.0)) {
mbedaddict 0:f83df7d9548d 19 brightness -= 0.01;
mbedaddict 0:f83df7d9548d 20 led = brightness;
mbedaddict 0:f83df7d9548d 21 }
mbedaddict 0:f83df7d9548d 22
mbedaddict 0:f83df7d9548d 23 }
mbedaddict 0:f83df7d9548d 24 }