Program using a HC-SR04 Ultrasonic sensor.

Dependencies:   mbed

Fork of Ultrasonico_HC-SR04 by Icaro Brito

Just a translation to english, used for Youth club of electronic in Roznov

Files at this revision

API Documentation at this revision

Comitter:
b34196
Date:
Wed Dec 20 14:40:23 2017 +0000
Parent:
0:34f7d9ef2f4b
Commit message:
english version used to play with kids in Roznov

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
diff -r 34f7d9ef2f4b -r ad8ec262e808 main.cpp
--- a/main.cpp	Wed Nov 12 17:53:57 2014 +0000
+++ b/main.cpp	Wed Dec 20 14:40:23 2017 +0000
@@ -1,49 +1,49 @@
-/* Programa para utilização do sensor Ultrasom
+/* Program for Ultrasonic sensor use
 */
-/*Interrupções de pinos,só são possíveis nas portas A e D*/
+/*Pin interruptions are only possible with ports A and D*/
 
 #include "mbed.h"
 
- Serial pc(USBTX,USBRX);  //Configuração da comunicação serial para enviar o valor do sensor
- DigitalOut trig(PTE5,0);  //Configuração do pino de Trigger
- InterruptIn echo(PTA16);   //Configuração da interrupção por pino de Echo 
+ Serial pc(USBTX,USBRX);  //Configuration of the serial communication to send the value of the sensor
+ DigitalOut trig(PTE3,0);  //Trigger pin configuration
+ InterruptIn echo(PTA16);   //Echo pin interrupt configuration
  Timer tempo;
  float tdist=0, distcm=0, distin=0, dist0=0;
 
-    void iniP(){            //Rotina para receber o pulso inicial do pino Echo
-        tempo.start();      //Rotina para iniciar o contador
+    void iniP(){            //Routine to receive the initial pulse of the Echo pin
+        tempo.start();      //Routine to start the counter
         return;
         }
         
-    void finP(){ //Rotina para pegar o tempo final do pulso
+    void finP(){ //Routine to get the end time of the pulse
     
-        tdist = tempo.read_us();  //Leitura do tempo transcorrido
-        distcm = tdist/58;         //Cálculo da distância detectada em "cm"
-        distin = tdist/148;        //Cálculo da distância detectada em "in"
+        tdist = tempo.read_us();  //Reading the elapsed time
+        distcm = tdist/58;         // distance "cm"
+        distin = tdist/148;        // distance "in"
         
-        tempo.stop();           //Páro o temporizador
-        tempo.reset();          //Reset para o próximo ciclo
+        tempo.stop();           //Stop the timer
+        tempo.reset();          //reset to next cycle
         return;
         }
         
         
         
     int main(){
-        
+        printf("Ultrasonic ranging test \n"); 
         while(1){
             
-            trig=1;             //Inicio do trigger
-            wait_us(10);        // 10us de pulso
-            trig=0;             //Fim do trigger
+            trig=1;             //trigger start
+            wait_us(10);        // 10us puls
+            trig=0;             //end of trigger
             
-            echo.rise(&iniP);   //leitura do inicio do pulso de retorno
-            echo.fall(&finP);   //Leitura do final do pulso de retorno
+            echo.rise(&iniP);   //return pulse start reading
+            echo.fall(&finP);   //Reading the end of the return pulse
             
-            if(distcm != dist0){ //rotina para evitar que se envie muitos valores
+            if(distcm != dist0){ //routine to avoid sending too many values
                 dist0 = distcm;
-                printf("Distancia detectada pelo sensor %.2f cm \n",distcm); 
+                printf("Distance detected by sensor %.2f cm \r\n",distcm); 
             }
-           wait_ms(60);     //rotina para evitar que o pulso de "trigger" seja confundido com o "echo"           
+           wait_ms(60);     //routine to prevent the trigger pulse from being confused with the "echo"           
         }