USBHostKeyboard Hello World

Dependencies:   USBHost mbed

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Show/hide line numbers main.cpp Source File

main.cpp

00001 #include "mbed.h"
00002 #include "USBHostKeyboard.h"
00003 
00004 DigitalOut led(LED1);
00005 
00006 void onKey(uint8_t key) {
00007     printf("Key: %c\r\n", key);
00008 }
00009 
00010 void keyboard_task(void const *) {
00011     
00012     USBHostKeyboard keyboard;
00013     
00014     while(1) {
00015         // try to connect a USB keyboard
00016         while(!keyboard.connect())
00017             Thread::wait(500);
00018     
00019         // when connected, attach handler called on keyboard event
00020         keyboard.attach(onKey);
00021         
00022         // wait until the keyboard is disconnected
00023         while(keyboard.connected())
00024             Thread::wait(500);
00025     }
00026 }
00027 
00028 int main() {
00029     Thread keyboardTask(keyboard_task, NULL, osPriorityNormal, 256 * 4);
00030     while(1) {
00031         led=!led;
00032         Thread::wait(500);
00033     }
00034 }