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https://os.mbed.com/media/uploads/danijel28/indikatorudaljenostiobjekta.cpp
hcsr04.cpp@1:6f2201f12897, 2020-02-04 (annotated)
- Committer:
- danijel28
- Date:
- Tue Feb 04 17:57:14 2020 +0000
- Revision:
- 1:6f2201f12897
- Parent:
- 0:86b2086be101
I adjusted HCSR04 and buzzer library for school project
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
antoniolinux | 0:86b2086be101 | 1 | #include "hcsr04.h" |
antoniolinux | 0:86b2086be101 | 2 | #include "mbed.h" |
danijel28 | 1:6f2201f12897 | 3 | |
danijel28 | 1:6f2201f12897 | 4 | HCSR04::HCSR04(PinName t, PinName e) : triger(t), echo(e) {} |
danijel28 | 1:6f2201f12897 | 5 | long HCSR04::echo_trajanjeImpulsa() |
danijel28 | 1:6f2201f12897 | 6 | { |
danijel28 | 1:6f2201f12897 | 7 | |
danijel28 | 1:6f2201f12897 | 8 | timer.reset(); //Resetiranje timera na 0 |
danijel28 | 1:6f2201f12897 | 9 | triger=0; // Triger u logičkoj "0" |
danijel28 | 1:6f2201f12897 | 10 | wait_us(2); |
danijel28 | 1:6f2201f12897 | 11 | triger=1; // Triger u logičkoj "1" |
antoniolinux | 0:86b2086be101 | 12 | wait_us(10); |
danijel28 | 1:6f2201f12897 | 13 | triger=0; // Triger u logičkoj "0" |
danijel28 | 1:6f2201f12897 | 14 | while(!echo); |
danijel28 | 1:6f2201f12897 | 15 | timer.start(); // Timer počinje brojati kada triger pošalje impuls |
danijel28 | 1:6f2201f12897 | 16 | while(echo); |
danijel28 | 1:6f2201f12897 | 17 | timer.stop(); |
danijel28 | 1:6f2201f12897 | 18 | return timer.read_us(); |
danijel28 | 1:6f2201f12897 | 19 | |
antoniolinux | 0:86b2086be101 | 20 | } |
antoniolinux | 0:86b2086be101 | 21 | |
danijel28 | 1:6f2201f12897 | 22 | //Vraća udaljenost u centimetrima |
danijel28 | 1:6f2201f12897 | 23 | long HCSR04::udaljenost() |
danijel28 | 1:6f2201f12897 | 24 | { |
danijel28 | 1:6f2201f12897 | 25 | trajanjeImpulsa = echo_trajanjeImpulsa(); |
danijel28 | 1:6f2201f12897 | 26 | udaljenost_cm = (trajanjeImpulsa/2)/29.1; |
danijel28 | 1:6f2201f12897 | 27 | return udaljenost_cm; |
antoniolinux | 0:86b2086be101 | 28 | } |