Progetto STM32 / Mbed 2 deprecated STMNucleoF401RE_ExampleCode_13_Ultasound

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Dependencies:   HCSR04 mbed

Fork of STMNucleoF401RE_ExampleCode_13_Ultasound by Corso Rapid Prototyping with STM32Nucleo

main.cpp@0:a4f31fdfb261, 2015-11-02 (annotated)

Committer:
perlatecnica
Date:
Mon Nov 02 14:24:27 2015 +0000
Revision:
0:a4f31fdfb261
v1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
perlatecnica 0:a4f31fdfb261 1 /****************************************************
perlatecnica 0:a4f31fdfb261 2 * FAST PROTOTYPING WITH NUCLEO *
perlatecnica 0:a4f31fdfb261 3 * Example Code 13: Ultrasound HCSR04 *
perlatecnica 0:a4f31fdfb261 4 * Author: Mauro D'Angelo *
perlatecnica 0:a4f31fdfb261 5 * Organization: Perlatecnica no-profit organization *
perlatecnica 0:a4f31fdfb261 6 *****************************************************/
perlatecnica 0:a4f31fdfb261 7
perlatecnica 0:a4f31fdfb261 8 #include "mbed.h"
perlatecnica 0:a4f31fdfb261 9 #include "hcsr04.h"
perlatecnica 0:a4f31fdfb261 10
perlatecnica 0:a4f31fdfb261 11 // Instanzio un oggetto di tipo HCSR04 ed assegno i pin di trigger e di echo
perlatecnica 0:a4f31fdfb261 12 HCSR04 sensor(PB_8, PB_9);
perlatecnica 0:a4f31fdfb261 13
perlatecnica 0:a4f31fdfb261 14 // Serial
perlatecnica 0:a4f31fdfb261 15 Serial pc(USBTX, USBRX);
perlatecnica 0:a4f31fdfb261 16
perlatecnica 0:a4f31fdfb261 17 int main() {
perlatecnica 0:a4f31fdfb261 18 // Fisso il baudrate
perlatecnica 0:a4f31fdfb261 19 pc.baud(9600);
perlatecnica 0:a4f31fdfb261 20
perlatecnica 0:a4f31fdfb261 21 // Main loop
perlatecnica 0:a4f31fdfb261 22 while(1) {
perlatecnica 0:a4f31fdfb261 23 // Avvia un impulso della durata di 10us sul pin di trigger
perlatecnica 0:a4f31fdfb261 24 sensor.start();
perlatecnica 0:a4f31fdfb261 25
perlatecnica 0:a4f31fdfb261 26 // Aspetta prima della prossima lettura
perlatecnica 0:a4f31fdfb261 27 wait_ms(100);
perlatecnica 0:a4f31fdfb261 28
perlatecnica 0:a4f31fdfb261 29 // Stampa sulla seriale la misura della distanza in cm
perlatecnica 0:a4f31fdfb261 30 pc.printf("%dcm\r\n", sensor.get_dist_cm());
perlatecnica 0:a4f31fdfb261 31 }
perlatecnica 0:a4f31fdfb261 32 }