💬 Motion Sensor

[siod]

Hi, I´ve read this above

"however this sensor requires 5 VDC so you will need to use a step-up regulator if you are running the 3.3V version of the Arduino Pro Mini."

So I am using 3 V, could you propose a fitting step up regulator so I can use this PIR (best from ebay)? Thank you!

[maghac]

@siod said in 💬 Motion Sensor:

a

You have a HC-SR501 sensor? I had that same question before and then I realized that the HC-SR501 actually has a 3.3 V regulator and if you bypass it you can run it on 3.3V.

[sellier]

@Cliff-Karlsson
For dual Sensors

one error is present on the line sleep:
it is not : sleep(digitalPinToInterrupt(DIGITAL_INPUT_SENSOR_1 || DIGITAL_INPUT_SENSOR_1), CHANGE, SLEEP_TIME);

but : sleep(digitalPinToInterrupt(DIGITAL_INPUT_SENSOR_1 )|| digitalPinToInterrupt(DIGITAL_INPUT_SENSOR_2), CHANGE, SLEEP_TIME);

[MCF]

hi,
i want to ad a motion sensor to my project (3 dimmers on a arduino uno using nrf24).
My first problem is that the 2 and 3 pins are not available (nrf24 and pwm dimmer), so i will take the pin 1 for testing
second is the sleeping time during i can't send any light message to my dimmers...

[MCF]

this is my code

/**
 * 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 <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 - February 15, 2014 - Bruce Lacey
 * Version 1.1 - August 13, 2014 - Converted to 1.4 (hek)
 *
 * DESCRIPTION
 * This sketch provides a Dimmable LED Light using PWM and based Henrik Ekblad
 * <henrik.ekblad@gmail.com> Vera Arduino Sensor project.
 * Developed by Bruce Lacey, inspired by Hek's MySensor's example sketches.
 *
 * The circuit uses a MOSFET for Pulse-Wave-Modulation to dim the attached LED or LED strip.
 * The MOSFET Gate pin is connected to Arduino pin 3 (LED_PIN), the MOSFET Drain pin is connected
 * to the LED negative terminal and the MOSFET Source pin is connected to ground.
 *
 * This sketch is extensible to support more than one MOSFET/PWM dimmer per circuit.
 * http://www.mysensors.org/build/dimmer
 * 
 * 
 * LISTE DE POINTS:
 * D0  DISPO
 * D1  MOTION
 * D2  IRQ NRF
 * D3  LED1
 * D4  DISPO
 * D5  LED2
 * D6  LED3
 * D7  DISPO
 * D8  DISPO
 * D9  CE NRF
 * D10 CSN/CS NRF
 * D11 MOSI NRF
 * D12 MISO NRF
 * D13 SCK NRF
 * D14 DISPO
 * 
 * 
 */

// Enable debug prints to serial monitor
#define MY_DEBUG 

// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69

//#define MY_NODE_ID 153 

#include <SPI.h>
#include <MySensors.h> 

#define SN "BUREAU PARENTS"
#define SV "1.2"

#define noLEDs 3
const int LED_Pin[] = {3, 5, 6}; 

#define FADE_DELAY 10  // Delay in ms for each percentage fade up/down (10ms = 1s full-range dim)

static int currentLevel1 = 0;  // Current dim level...
static int currentLevel2 = 0;  // Current dim level...
static int currentLevel3 = 0;  // Current dim level...

MyMessage dimmer1Msg(1, V_DIMMER);
MyMessage light1Msg(1, V_LIGHT);
MyMessage dimmer2Msg(2, V_DIMMER);
MyMessage light2Msg(2, V_LIGHT);
MyMessage dimmer3Msg(3, V_DIMMER);
MyMessage light3Msg(3, V_LIGHT);

// MOTION SENSOR
uint32_t SLEEP_TIME = 120000; // Sleep time between reports (in milliseconds)
#define DIGITAL_INPUT_SENSOR 1   // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define CHILD_ID 4   // Id of the sensor child
MyMessage msg(CHILD_ID, V_TRIPPED);

/***
 * Dimmable LED initialization method
 */
void setup()  
{ 
  // LEDS
  // Pull the gateway's current dim level - restore light level upon sendor node power-up
for (int sensor=1; sensor<=noLEDs; sensor++){
  request( sensor, V_DIMMER );
 }
 // MOTION
 pinMode(DIGITAL_INPUT_SENSOR, INPUT);      // sets the motion sensor digital pin as input
}

void presentation() {
  // Register the LED Dimmable Light with the gateway
 for (int sensor=1; sensor<=noLEDs; sensor++){
 present(sensor, S_DIMMER);
 wait(2);
 }
  // MOTION
  present(CHILD_ID, S_MOTION);
  
  sendSketchInfo(SN, SV);
}

/***
 *  Dimmable LED main processing loop 
 */
void loop() 
{
  // Read digital motion value
    bool tripped = digitalRead(DIGITAL_INPUT_SENSOR)== HIGH;
    
    Serial.println("coucou");
    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);
}



void receive(const MyMessage &message) {
  if (message.type == V_LIGHT || message.type == V_DIMMER) {

    if (message.sensor == 1) {

     //  Retrieve the power or dim level from the incoming request message
    int requestedLevel1 = atoi( message.data );
    
    // Adjust incoming level if this is a V_LIGHT variable update [0 == off, 1 == on]
    requestedLevel1 *= ( message.type == V_LIGHT ? 100 : 1 );
    
    // Clip incoming level to valid range of 0 to 100
    requestedLevel1 = requestedLevel1 > 100 ? 100 : requestedLevel1;
    requestedLevel1 = requestedLevel1 < 0   ? 0   : requestedLevel1;

      
     fadeToLevel1( requestedLevel1, message.sensor );
    send(light1Msg.set(currentLevel1 > 0 ? 1 : 0)); 
    send(dimmer1Msg.set(currentLevel1) );}
   
    
    
     
   if (message.sensor == 2) {
   //  Retrieve the power or dim level from the incoming request message
    int requestedLevel2 = atoi( message.data );
    
    // Adjust incoming level if this is a V_LIGHT variable update [0 == off, 1 == on]
    requestedLevel2 *= ( message.type == V_LIGHT ? 100 : 1 );
    
    // Clip incoming level to valid range of 0 to 100
    requestedLevel2 = requestedLevel2 > 100 ? 100 : requestedLevel2;
    requestedLevel2 = requestedLevel2 < 0   ? 0   : requestedLevel2;
    
    fadeToLevel2( requestedLevel2, message.sensor );
    send(light2Msg.set(currentLevel2 > 0 ? 1 : 0));
    send(dimmer2Msg.set(currentLevel2) );}
     
    if (message.sensor == 3) {
   //  Retrieve the power or dim level from the incoming request message
    int requestedLevel3 = atoi( message.data );
    
    // Adjust incoming level if this is a V_LIGHT variable update [0 == off, 1 == on]
    requestedLevel3 *= ( message.type == V_LIGHT ? 100 : 1 );
    
    // Clip incoming level to valid range of 0 to 100
    requestedLevel3 = requestedLevel3 > 100 ? 100 : requestedLevel3;
    requestedLevel3 = requestedLevel3 < 0   ? 0   : requestedLevel3;
      
     fadeToLevel3( requestedLevel3, message.sensor );
    send(light3Msg.set(currentLevel3 > 0 ? 1 : 0));
    send(dimmer3Msg.set(currentLevel3) );}
    }

    
}

/***
 *  This method provides a graceful fade up/down effect
 */
void fadeToLevel1( int toLevel1, int ledid1 ) {

  int delta1 = ( toLevel1 - currentLevel1 ) < 0 ? -1 : 1;
  
  while ( currentLevel1 != toLevel1 ) {
    currentLevel1 += delta1;
    analogWrite(LED_Pin[ledid1-1], (int)(currentLevel1 / 100. * 255) );
    wait( FADE_DELAY );
  }
}
void fadeToLevel2( int toLevel2, int ledid2 ) {

  int delta2 = ( toLevel2 - currentLevel2 ) < 0 ? -1 : 1;
  
  while ( currentLevel2 != toLevel2 ) {
    currentLevel2 += delta2;
    analogWrite(LED_Pin[ledid2-1], (int)(currentLevel2 / 100. * 255) );
    wait( FADE_DELAY );
  }
}
void fadeToLevel3( int toLevel3, int ledid3 ) {

  int delta3 = ( toLevel3 - currentLevel3 ) < 0 ? -1 : 1;
  
  while ( currentLevel3 != toLevel3 ) {
    currentLevel3 += delta3;
    analogWrite(LED_Pin[ledid3-1], (int)(currentLevel3 / 100. * 255) );
    wait( FADE_DELAY );
  }
}

[gohan]

Since it is a powered node, you don't need to put it to sleep. As for the pir you can do as you like: check pin status during loop, use an attach interrupt function on pin change, etc

[MCF]

@gohan ok thank you for answering. if i do this:

void loop() 
{
  // Read digital motion value
    bool tripped = digitalRead(DIGITAL_INPUT_SENSOR)== HIGH;
    
    Serial.println("coucou");
    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);
}

the node never stop to send message to the gateway. i would like to send something only if D1 goes to high, is that possible ? (i'm starting combinating exemple and i want to understand what i do now!!)

[wes]

@siod The HC-SR501 actually runs on 3.3VDC but has a 5VDC-3.3VDC regulator on board.

There are several ways to bypass this regulator, but the easiest is to connect your 3.3VDC supply to pin 3 of JP3 (the one marked "H").

You must make sure that your 3.3VDC supply is very stable, otherwise you will get false activations.

See:
https://randomnerdtutorials.com/modifying-cheap-pir-motion-sensor-to-work-at-3-3v/
https://www.youtube.com/watch?v=5jhTQAV-hg0
https://www.mpja.com/download/31227sc.pdf

[joaoabs]

Hi,

The code

sleep(digitalPinToInterrupt(DIGITAL_INPUT_SENSOR), CHANGE, SLEEP_TIME); 

doesn't need a ISR (Interrupt Service Routine) function? Should we assume that if no ISR is defined, the node will wake in the loop function?

[gohan]

Yes, it will wake and run the loop once

[patrikr76]

So i was testing out the motionsensor sketch and it kept giving me "!TSF:MSG:SEND" after the initial 0 had been sent.

Finding no answers on here i tested loads of things until i tried a delay after the sleep command.
Running fine now with a 5msec delay.

Just thought i would share.

[mitsured]

I connected a 12v DC input and no matter what I do the output always shows 12V. It never goes to a "low" 0V output. From what I read these can use between a 5v and 20v input so I'm assuming a 12v input should not be an issue and still produce a High when triggered and Low 0V when not triggered output. What am I doing wrong?

[bereska]

@patrikr76 thank you so much. I had the same issue with my motion sensor and spent 2 days pulling my hair out)

[etlizzie]

Was anyone able to reduce the delay time? 5 seconds is too long for me.

[EileenWen]

This post is deleted!