Joseph Forde
Serial_communications_1
main.cpp@4:eabf5656c755, 2020-07-28 (annotated)
- Committer:
- jforde
- Date:
- Tue Jul 28 11:42:09 2020 +0000
- Revision:
- 4:eabf5656c755
- Parent:
- 3:4e35f0d99e64
Serial_communications_1
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| jforde | 4:eabf5656c755 | 1 | #include "mbed.h" //Preprocessor Directives |
| jforde | 4:eabf5656c755 | 2 | // Declarations |
| jforde | 4:eabf5656c755 | 3 | Serial pc(USBTX, USBRX); // tx, rx |
| jforde | 4:eabf5656c755 | 4 | PwmOut led(LED1); |
| simon | 0:fb6bbc10ffa0 | 5 | |
| jforde | 4:eabf5656c755 | 6 | float brightness = 0.0; |
| jforde | 4:eabf5656c755 | 7 | int main() { //instructions in main () function |
| jforde | 4:eabf5656c755 | 8 | pc.printf("Press 'u' to turn LED1 brightness up, 'd' to turn it down\n"); |
| jforde | 4:eabf5656c755 | 9 | |
| simon | 0:fb6bbc10ffa0 | 10 | while(1) { |
| jforde | 4:eabf5656c755 | 11 | char c = pc.getc(); //Reads a character from keyboard |
| jforde | 4:eabf5656c755 | 12 | if((c == 'u') && (brightness < 0.5)) { |
| jforde | 4:eabf5656c755 | 13 | brightness += 0.01; |
| jforde | 4:eabf5656c755 | 14 | led = brightness; |
| jforde | 4:eabf5656c755 | 15 | pc.putc('^'); // Writes a character ('^') to the standard output |
| jforde | 4:eabf5656c755 | 16 | } |
| jforde | 4:eabf5656c755 | 17 | if((c == 'd') && (brightness > 0.0)) { |
| jforde | 4:eabf5656c755 | 18 | brightness -= 0.01; |
| jforde | 4:eabf5656c755 | 19 | led = brightness; |
| jforde | 4:eabf5656c755 | 20 | pc.putc('v'); // Writes a character ('v') to the standard output |
| jforde | 4:eabf5656c755 | 21 | } |
| simon | 0:fb6bbc10ffa0 | 22 | } |
| simon | 0:fb6bbc10ffa0 | 23 | } |
| jforde | 4:eabf5656c755 | 24 |