mbed school
使用 button 控制 LED
main.cpp@0:b38f3a86b62b, 2015-02-14 (annotated)
- Committer:
- mbedschool
- Date:
- Sat Feb 14 05:48:52 2015 +0000
- Revision:
- 0:b38f3a86b62b
update
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbedschool | 0:b38f3a86b62b | 1 | #include "mbed.h" |
| mbedschool | 0:b38f3a86b62b | 2 | |
| mbedschool | 0:b38f3a86b62b | 3 | DigitalOut myled(LED1); |
| mbedschool | 0:b38f3a86b62b | 4 | DigitalIn button(p21); |
| mbedschool | 0:b38f3a86b62b | 5 | |
| mbedschool | 0:b38f3a86b62b | 6 | int main() |
| mbedschool | 0:b38f3a86b62b | 7 | { |
| mbedschool | 0:b38f3a86b62b | 8 | while(1){ |
| mbedschool | 0:b38f3a86b62b | 9 | if(button){ |
| mbedschool | 0:b38f3a86b62b | 10 | myled = 1 ; |
| mbedschool | 0:b38f3a86b62b | 11 | |
| mbedschool | 0:b38f3a86b62b | 12 | } |
| mbedschool | 0:b38f3a86b62b | 13 | else |
| mbedschool | 0:b38f3a86b62b | 14 | myled = 0; |
| mbedschool | 0:b38f3a86b62b | 15 | |
| mbedschool | 0:b38f3a86b62b | 16 | wait(0.7); // simple debouncing |
| mbedschool | 0:b38f3a86b62b | 17 | } |
| mbedschool | 0:b38f3a86b62b | 18 | |
| mbedschool | 0:b38f3a86b62b | 19 | } |