Val Glynn
/
2_1_Original_Code
CA 2.1 Serial communications Original Code
Diff: main.cpp
- Revision:
- 0:beba585396a2
diff -r 000000000000 -r beba585396a2 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sun Jul 26 20:47:26 2020 +0000 @@ -0,0 +1,24 @@ +#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; + } + if((c == 'd') && (brightness > 0.0)) { + brightness -= 0.01; + led = brightness; + } + + } +} +