send a number through serial USB >> blink it in binary using the default LED
Fork of mbed-os-example-mbed5-blinky by
main.cpp
- Committer:
- Ladon
- Date:
- 2017-11-11
- Revision:
- 51:38bcf5ee4cb1
- Parent:
- 29:0b58d21e87d6
- Child:
- 52:fb9d943f4042
File content as of revision 51:38bcf5ee4cb1:
#include "mbed.h" DigitalOut led1(LED1); Serial pc(USBTX, USBRX); // blink a number in binary // void blink_in_binary (int number); // main() runs in its own thread in the OS int main() { // pc.baud(9600); int number; number = 0; while (true) { while (!pc.readable()); pc.scanf("%d", &number); // pc.printf("you entered %d\n", number); blink_in_binary(number); } } // recursivelly prints left-to-right // void blink_in_binary (int number) { if (number <= 0) return; blink_in_binary (number >> 1); led1 = number & 1; wait(0.3); led1 = 0; wait(0.3); }