ABHISHEK GUPTA / Mbed 2 deprecated Smart_Home_sensors

Simple code for multiple sensor test using K64f

Dependencies:   mbed MQ2 FXOS8700Q DHT TextLCD ESP8266

hcsr04.h@5:a981584597fb, 2021-03-25 (annotated)

Committer:
abhishek_gupta
Date:
Thu Mar 25 10:44:23 2021 +0000
Revision:
5:a981584597fb
This code represents the use of multiple sensors in a simple way in order to create a small scale smart home system which runs on its own

Who changed what in which revision?

UserRevisionLine numberNew contents of line
abhishek_gupta 5:a981584597fb 1 /* Copyright (c) 2013 Prabhu Desai
abhishek_gupta 5:a981584597fb 2 * pdtechworld@gmail.com
abhishek_gupta 5:a981584597fb 3 *
abhishek_gupta 5:a981584597fb 4 *
abhishek_gupta 5:a981584597fb 5 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
abhishek_gupta 5:a981584597fb 6 * and associated documentation files (the "Software"), to deal in the Software without restriction,
abhishek_gupta 5:a981584597fb 7 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
abhishek_gupta 5:a981584597fb 8 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
abhishek_gupta 5:a981584597fb 9 * furnished to do so, subject to the following conditions:
abhishek_gupta 5:a981584597fb 10 *
abhishek_gupta 5:a981584597fb 11 * The above copyright notice and this permission notice shall be included in all copies or
abhishek_gupta 5:a981584597fb 12 * substantial portions of the Software.
abhishek_gupta 5:a981584597fb 13 *
abhishek_gupta 5:a981584597fb 14 * For more details on the sensor :
abhishek_gupta 5:a981584597fb 15 * http://www.elecfreaks.com/store/hcsr04-ultrasonic-sensor-distance-measuring-module-p-91.html?zenid=pgm8pgnvaodbe36dibq5s1soi3
abhishek_gupta 5:a981584597fb 16 *
abhishek_gupta 5:a981584597fb 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
abhishek_gupta 5:a981584597fb 18 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
abhishek_gupta 5:a981584597fb 19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
abhishek_gupta 5:a981584597fb 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
abhishek_gupta 5:a981584597fb 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
abhishek_gupta 5:a981584597fb 22 */
abhishek_gupta 5:a981584597fb 23
abhishek_gupta 5:a981584597fb 24 #ifndef MBED_HCSR04_H
abhishek_gupta 5:a981584597fb 25 #define MBED_HCSR04_H
abhishek_gupta 5:a981584597fb 26
abhishek_gupta 5:a981584597fb 27 #include "mbed.h"
abhishek_gupta 5:a981584597fb 28
abhishek_gupta 5:a981584597fb 29 /** HCSR04 Class(es)
abhishek_gupta 5:a981584597fb 30 */
abhishek_gupta 5:a981584597fb 31
abhishek_gupta 5:a981584597fb 32 class HCSR04
abhishek_gupta 5:a981584597fb 33 {
abhishek_gupta 5:a981584597fb 34 public:
abhishek_gupta 5:a981584597fb 35 /** Create a HCSR04 object connected to the specified pin
abhishek_gupta 5:a981584597fb 36 * @param pin i/o pin to connect to
abhishek_gupta 5:a981584597fb 37 */
abhishek_gupta 5:a981584597fb 38 HCSR04(PinName TrigPin,PinName EchoPin);
abhishek_gupta 5:a981584597fb 39 ~HCSR04();
abhishek_gupta 5:a981584597fb 40
abhishek_gupta 5:a981584597fb 41 /** Return the distance from obstacle in cm
abhishek_gupta 5:a981584597fb 42 * @param distance in cms and returns -1, in case of failure
abhishek_gupta 5:a981584597fb 43 */
abhishek_gupta 5:a981584597fb 44 unsigned int get_dist_cm(void);
abhishek_gupta 5:a981584597fb 45 /** Return the pulse duration equal to sonic waves travelling to obstacle and back to receiver.
abhishek_gupta 5:a981584597fb 46 * @param pulse duration in microseconds.
abhishek_gupta 5:a981584597fb 47 */
abhishek_gupta 5:a981584597fb 48 unsigned int get_pulse_us(void);
abhishek_gupta 5:a981584597fb 49 /** Generates the trigger pulse of 10us on the trigger PIN.
abhishek_gupta 5:a981584597fb 50 */
abhishek_gupta 5:a981584597fb 51 void start(void );
abhishek_gupta 5:a981584597fb 52 void isr_rise(void);
abhishek_gupta 5:a981584597fb 53 void isr_fall(void);
abhishek_gupta 5:a981584597fb 54 void fall (void (*fptr)(void));
abhishek_gupta 5:a981584597fb 55 void rise (void (*fptr)(void));
abhishek_gupta 5:a981584597fb 56
abhishek_gupta 5:a981584597fb 57
abhishek_gupta 5:a981584597fb 58
abhishek_gupta 5:a981584597fb 59 private:
abhishek_gupta 5:a981584597fb 60
abhishek_gupta 5:a981584597fb 61 Timer pulsetime;
abhishek_gupta 5:a981584597fb 62 DigitalOut trigger;
abhishek_gupta 5:a981584597fb 63 InterruptIn echo;
abhishek_gupta 5:a981584597fb 64 unsigned int pulsedur;
abhishek_gupta 5:a981584597fb 65 unsigned int distance;
abhishek_gupta 5:a981584597fb 66 };
abhishek_gupta 5:a981584597fb 67
abhishek_gupta 5:a981584597fb 68 #endif