MotionSensorRS485.ino

/*
 * The MySensors Arduino library handles the wireless radio link and protocol
 * between your home built sensors/actuators and HA controller of choice.
 * The sensors forms a self healing radio network with optional repeaters. Each
 * repeater and gateway builds a routing tables in EEPROM which keeps track of the
 * network topology allowing messages to be routed to nodes.
 *
 * Created by Henrik Ekblad <[email protected]>
 * Copyright (C) 2013-2022 Sensnology AB
 * Full contributor list: https://github.com/mysensors/MySensors/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
 *
 * DESCRIPTION
 * This is an example of sensors using RS485 as transport layer
 *
 * Motion Sensor example using HC-SR501
 * http://www.mysensors.org/build/motion
 *
 * If your Arduino board has additional serial ports
 * you can use to connect the RS485 module.
 * Otherwise, the transport uses AltSoftSerial to handle two serial
 * links on one Arduino. Use the following pins for RS485 link
 *
 *  Board          Transmit  Receive   PWM Unusable
 * -----          --------  -------   ------------
 * Teensy 3.0 & 3.1  21        20         22
 * Teensy 2.0         9        10       (none)
 * Teensy++ 2.0      25         4       26, 27
 * Arduino Uno        9         8         10
 * Arduino Leonardo   5        13       (none)
 * Arduino Mega      46        48       44, 45
 * Wiring-S           5         6          4
 * Sanguino          13        14         12 *
 *
 */
 
// Enable debug prints to serial monitor
#define MY_DEBUG
 
// Enable RS485 transport layer
#define MY_RS485
 
// Define this to enables DE-pin management on defined pin
#define MY_RS485_DE_PIN 2
 
// Set RS485 baud rate to use
#define MY_RS485_BAUD_RATE 9600
 
// Enable this if RS485 is connected to a hardware serial port
//#define MY_RS485_HWSERIAL Serial1
 
#include <MySensors.h>
 
uint32_t SLEEP_TIME = 120000; // Sleep time between reports (in milliseconds)
#define DIGITAL_INPUT_SENSOR 3   // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define CHILD_ID 1   // Id of the sensor child
 
// Initialize motion message
MyMessage msg(CHILD_ID, V_TRIPPED);
 
void setup()
{
    pinMode(DIGITAL_INPUT_SENSOR, INPUT);      // sets the motion sensor digital pin as input
}
 
void presentation()
{
    // Send the sketch version information to the gateway and Controller
    sendSketchInfo("Motion Sensor", "1.0");
 
    // Register all sensors to gw (they will be created as child devices)
    present(CHILD_ID, S_MOTION);
}
 
void loop()
{
    // Read digital motion value
    bool tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH;
 
    Serial.println(tripped);
    send(msg.set(tripped?"1":"0"));  // Send tripped value to gw
 
    // Sleep until interrupt comes in on motion sensor. Send update every two minute.
    sleep(digitalPinToInterrupt(DIGITAL_INPUT_SENSOR), CHANGE, SLEEP_TIME);
}