80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
/**
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* The MySensors Arduino library handles the wireless radio link and protocol
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* between your home built sensors/actuators and HA controller of choice.
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* The sensors forms a self healing radio network with optional repeaters. Each
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* repeater and gateway builds a routing tables in EEPROM which keeps track of the
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* network topology allowing messages to be routed to nodes.
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*
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* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
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* Copyright (C) 2013-2015 Sensnology AB
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* Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
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*
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* Documentation: http://www.mysensors.org
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* Support Forum: http://forum.mysensors.org
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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*******************************
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*
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* REVISION HISTORY
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* Version 1.0 - Henrik EKblad
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*
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* DESCRIPTION
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* This sketch provides an example how to implement a distance sensor using HC-SR04
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* http://www.mysensors.org/build/distance
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*/
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// Enable debug prints
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#define MY_DEBUG
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// Enable and select radio type attached
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#define MY_RADIO_NRF24
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//#define MY_RADIO_RFM69
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#include <SPI.h>
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#include <MySensors.h>
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#include <NewPing.h>
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#define CHILD_ID 1
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#define TRIGGER_PIN 6 // Arduino pin tied to trigger pin on the ultrasonic sensor.
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#define ECHO_PIN 5 // Arduino pin tied to echo pin on the ultrasonic sensor.
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#define MAX_DISTANCE 300 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm.
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unsigned long SLEEP_TIME = 5000; // Sleep time between reads (in milliseconds)
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NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance.
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MyMessage msg(CHILD_ID, V_DISTANCE);
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int lastDist;
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bool metric = true;
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void setup()
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{
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metric = getConfig().isMetric;
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}
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void presentation() {
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// Send the sketch version information to the gateway and Controller
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sendSketchInfo("Distance Sensor", "1.0");
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// Register all sensors to gw (they will be created as child devices)
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present(CHILD_ID, S_DISTANCE);
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}
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void loop()
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{
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int dist = metric?sonar.ping_cm():sonar.ping_in();
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Serial.print("Ping: ");
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Serial.print(dist); // Convert ping time to distance in cm and print result (0 = outside set distance range)
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Serial.println(metric?" cm":" in");
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if (dist != lastDist) {
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send(msg.set(dist));
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lastDist = dist;
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}
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sleep(SLEEP_TIME);
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}
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