Ciaran O'Malley
/
LAB_2_1_SerialComms
Lab 2.1
main.cpp@0:72aa19bb1aec, 2020-06-20 (annotated)
- Committer:
- ciaranom
- Date:
- Sat Jun 20 11:19:11 2020 +0000
- Revision:
- 0:72aa19bb1aec
- Child:
- 1:d8d13815a008
Lab exercise 2.1 Led Brightness;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ciaranom | 0:72aa19bb1aec | 1 | #include "mbed.h" |
ciaranom | 0:72aa19bb1aec | 2 | |
ciaranom | 0:72aa19bb1aec | 3 | Serial pc(USBTX, USBRX); // tx, rx |
ciaranom | 0:72aa19bb1aec | 4 | PwmOut led(LED1); |
ciaranom | 0:72aa19bb1aec | 5 | |
ciaranom | 0:72aa19bb1aec | 6 | float brightness = 0.0; |
ciaranom | 0:72aa19bb1aec | 7 | |
ciaranom | 0:72aa19bb1aec | 8 | int main() { |
ciaranom | 0:72aa19bb1aec | 9 | pc.printf("Press 'u' to turn LED1 brightness up, 'd' to turn it down\n"); |
ciaranom | 0:72aa19bb1aec | 10 | |
ciaranom | 0:72aa19bb1aec | 11 | while(1) { |
ciaranom | 0:72aa19bb1aec | 12 | char c = pc.getc(); |
ciaranom | 0:72aa19bb1aec | 13 | if((c == '^') && (brightness < 0.5)) { |
ciaranom | 0:72aa19bb1aec | 14 | brightness += 0.01; |
ciaranom | 0:72aa19bb1aec | 15 | led = brightness; |
ciaranom | 0:72aa19bb1aec | 16 | } |
ciaranom | 0:72aa19bb1aec | 17 | if((c == 'v') && (brightness > 0.0)) { |
ciaranom | 0:72aa19bb1aec | 18 | brightness -= 0.01; |
ciaranom | 0:72aa19bb1aec | 19 | led = brightness; |
ciaranom | 0:72aa19bb1aec | 20 | } |
ciaranom | 0:72aa19bb1aec | 21 | |
ciaranom | 0:72aa19bb1aec | 22 | } |
ciaranom | 0:72aa19bb1aec | 23 | } |