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/** | |
* This Sketch is based on the MySensors Distance Sensor Sketch | |
* https://github.com/mysensors/MySensorsArduinoExamples/tree/master/examples/DistanceSensor | |
* | |
* Original Headers: | |
* Created by Henrik Ekblad <henrik.ekblad@mysensors.org> | |
* Copyright (C) 2013-2015 Sensnology AB | |
* Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors | |
* | |
* Documentation: http://www.mysensors.org | |
* Support Forum: http://forum.mysensors.org | |
* | |
* This program is free software; you can redistribute it and/or | |
* modify it under the terms of the GNU General Public License | |
* version 2 as published by the Free Software Foundation. | |
* | |
******************************* | |
* | |
* REVISION HISTORY | |
* Version 1.0 - Henrik EKblad | |
* Version 1.1 - Alex Muthmann - https://dev-eth0.de | |
* | |
* DESCRIPTION | |
* This sketch provides an example how to implement a distance sensor using HC-SR04 and an additional temperature sensors | |
* http://www.mysensors.org/build/distance | |
* http://www.mysensors.org/build/temp | |
*/ | |
// Enable debug prints to serial monitor | |
#define MY_DEBUG | |
// Enable and select radio type attached | |
#define MY_RADIO_NRF24 | |
#define MY_RF24_CE_PIN 9 | |
#define MY_RF24_CS_PIN 10 | |
// Sleep time between reads (in milliseconds) | |
unsigned long SLEEP_TIME = 3000; | |
#include <Wire.h> | |
#include <SPI.h> | |
#include <MySensors.h> | |
#include <NewPing.h> | |
#include <DallasTemperature.h> | |
#include <OneWire.h> | |
#define ONE_WIRE_BUS 3 | |
OneWire oneWire(ONE_WIRE_BUS); | |
DallasTemperature sensors(&oneWire); | |
// Pins used for the Sensors | |
#define TRIGGER_PIN 6 // Arduino pin tied to trigger pin on the ultrasonic sensor. | |
#define ECHO_PIN 5 // Arduino pin tied to echo pin on the ultrasonic sensor. | |
#define MAX_DISTANCE 300 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm. | |
int lastDist = -1; | |
int lastTemperature = -1; | |
// ID used | |
#define CHILD_ID 13 | |
NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance. | |
MyMessage distMsg(CHILD_ID, V_DISTANCE); | |
MyMessage tempMsg(CHILD_ID,V_TEMP); | |
void setup() | |
{ | |
sensors.begin(); | |
} | |
void presentation() { | |
// Send the sketch version information to the gateway and Controller | |
sendSketchInfo("Distance Sensor", "1.1"); | |
// Register all sensors to gw | |
present(CHILD_ID, S_DISTANCE); | |
present(CHILD_ID, S_TEMP); | |
} | |
void loop() | |
{ | |
// Ping 5 times and calculate median | |
int dist_ms = sonar.ping_median(5); | |
// Calculate actual distance | |
int dist = sonar.convert_cm(dist_ms); | |
// Temperature | |
sensors.requestTemperatures(); | |
// Fetch and round temperature to one decimal | |
float temperature = sensors.getTempCByIndex(0); | |
// Debug Output | |
#ifdef MY_DEBUG | |
Serial.print("Distance = "); Serial.print(dist); Serial.println(" cm"); | |
Serial.print("Temperature = "); Serial.print(temperature); Serial.println(" *C"); | |
#endif | |
if (dist != lastDist) { | |
send(distMsg.set(dist)); | |
lastDist = dist; | |
} | |
if (temperature != lastTemperature) { | |
send(tempMsg.set(temperature, 1)); | |
lastTemperature = temperature; | |
} | |
sleep(SLEEP_TIME); | |
} | |