3 in 1 incl battery monitor

Heizelmann

I am new in this forum so may be what I will tell here is posted already somewhere else.
Firstly I would measure the battery voltage at the end after sending some values to see the voltage after some stress. Often it is the case for a nearly empty battery that it shows a relaxed high voltage after a long sleep and the break down on some stress. I think it is better to measure the lower level.
Secondly for a motion sensor I would implement a wakeup on a pin change interrupt. As a stand-alone sensor this would be optimal for battery life time. In combination the other components you can use a large cycle time for getting temperature humidity and so on and for the motion sensor you get an intermediate interrupt on demand. If those event are too often for your desire, you can check it against time or count of last event and go back to sleep without sending.

the cosmic gate

@carlierd said:

Hello,

You need to power the motion sensor all time as you want to detect any mouvement and not only every 2 minutes.

Caution, in your sketch, the battery level is sent at the beginning and at the end.

Did you tweak the motion sensor ?? Not tested yet but it seems that modification could (must ?) be done to reduce power consumption (LINK).

Why do you wake-up the arduino every 30 seconds ? For temperature, every 5 or 15 minutes is enough.

Sure i modded the motion sensor as shown in the hyperlink , modded it this way :

I don't know why i wake-up this arduino every 30 seconds, the sketch was fabricated by combine 2 or 3 other sketches to this one ( with help from @AWI )
So if there are some tweaking thing to do, do not hesitate and change the sketch as you think it must be

@icebob what's the sketch you using /testing ?

AWI

@the-cosmic-gate No specific reason to have a 30 second interval. You can just change the SLEEP_TIME to whatever eg. 5 minutes == 300000UL. The pin change interrupt is present in the code..

gw.sleep(INTERRUPT,CHANGE, SLEEP_TIME);

the cosmic gate

@icebob could you share us you're code ?

icebob

@the-cosmic-gate sorry, I'm working a big complex sketch, I can't share my code currently.

the cosmic gate

@icebob said:

@the-cosmic-gate sorry, I'm working a big complex sketch, I can't share my code currently.

Big and complex sounds interesting :)
Could you maybe share us a sneak peak ;-)

icebob

@the-cosmic-gate Nothing special. I made a big sketch, which contains 7-8 sensors (DHT, Si7021, MQ-2/9, PIR, Door magnet, Light, battery) reading code because I would like to upload the same sketch to all nodes and configurate it on controller side, which sensors is on the node and need to read.
But currently I reached the limit with I2C includes, so I need to think over this solution.

carlierd

@the-cosmic-gate Did you solved your power consumption issue ?

the cosmic gate

@carlierd said:

@the-cosmic-gate Did you solved your power consumption issue ?
Not yet, this because we moved to oneother house and didn't have the time now .
Also i had to disconnect and reconect all te sensors and domotica in this new house

carlierd

I just finished my first motion sensor node and the power consumption in idle is about 75uA. Could be better but not too bad ;)
The only thing is that the range is a little bit low for good detection. It's between 1 and 3 meters ...

David.

the cosmic gate

@carlierd said:

I just finished my first motion sensor node and the power consumption in idle is about 75uA. Could be better but not too bad ;)
The only thing is that the range is a little bit low for good detection. It's between 1 and 3 meters ...

David.

Hello David

Could you share what and how ? :)

Thnx

Dylano

And how is this sensor acting?

This is what i am looking for..
How lang can this sensor work? [ i wil try this with a 9Volt battery with a nano ]
What battery do you use?

carlierd

Hello,

This is the code I use but it's not perfect especially with the battery report.

The principle is as follow when the sensor start:

node in sleep mode with interrupt enable
if a move is detected, the detection is reported to the gateway
the node then go in sleep mode WITHOUT interrupt for 5 minutes
then the node return to sleep mode with interrupt enable

This is to avoid having many report (and power consumption) to the gateway.

The code (not perfect ! I have to rework on it but it's ok for the moment):

/**
 * 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.
 *
 */

/**************************************************************************************/
/* Motion sensor.                                                                     */
/*                                                                                    */
/* Version     : 1.1.5                                                                */
/* Date        : 30/01/2016                                                           */
/* Modified by : David Carlier                                                        */
/**************************************************************************************/
/*                                ---------------                                     */
/*                            RST |             |  A5                                 */
/*                            RX  |             |  A4                                 */
/*                            TX  |   ARDUINO   |  A3                                 */
/*     RFM69 (DIO0) --------- D2  |     UNO     |  A2                                 */
/*           Motion --------- D3  |             |  A1                                 */
/*            Power --------- D4  | ATMEGA 328p |  A0                                 */
/*              +3v --------- VCC |             | GND --------- GND                   */
/*              GND --------- GND |  8MHz int.  | REF                                 */
/*                            OSC |             | VCC --------- +3v                   */
/*                            OSC |             | D13 --------- RFM69 (SCK)           */
/*                            D5  |             | D12 --------- RFM69 (MISO)          */
/*                            D6  |             | D11 --------- RFM69 (MOSI)          */
/*                            D7  |             | D10 --------- RFM69 (NSS)           */
/*                            D8  |             |  D9                                 */
/*                                ---------------                                     */
/*                                                                                    */
/* +3v = 2*AA                                                                         */
/*                                                                                    */
/**************************************************************************************/

#include <SPI.h>
#include <MySensor.h>
#include <MyTransportRFM69.h>
#include <MySigningAtsha204Soft.h>

//Constants
#define SKETCH_NAME           "Motion Sensor"
#define SKETCH_VERSION        "1.1.5"
#define CHILD_ID              0
#define CHILD_ID_VOLTAGE      1
#define DIGITAL_INPUT_SENSOR  3
#define BATTERY_REPORT_CYCLE  4   //Report each hour (4 * 15')

//Misc. variables
uint8_t switchState = 2;
unsigned long SLEEP_TIME = 820000; // Sleep time between reads (in milliseconds) (close to 15')
unsigned long SLEEP_TIME2 = 275000; // Sleep time after int. (in milliseconds) (close to 5')
uint8_t cycleInProgress = 0;
uint8_t firstReportDone = 0;
uint8_t firstReportWithZeroDone = 0;

//Construct MySensors library
MySigningAtsha204Soft signer;
MyHwATMega328 hw;
MyTransportRFM69 transport;
MySensor node(transport, hw, signer);
MyMessage msgSwitch(CHILD_ID, V_TRIPPED);
MyMessage msgVolt(CHILD_ID_VOLTAGE, V_VOLTAGE);

/**************************************************************************************/
/* Initialization                                                                     */
/**************************************************************************************/
void setup()  
  {
  //Get time (for setup duration)
  #ifdef DEBUG
    unsigned long startTime = millis();
  #endif

  //Start MySensors and send the Sketch Version Information to the Gateway
  node.begin();
  node.sendSketchInfo(SKETCH_NAME, SKETCH_VERSION);

  //Setup the button
  pinMode(DIGITAL_INPUT_SENSOR, INPUT);

  //Register all sensors
  node.present(CHILD_ID, S_MOTION);
  node.present(CHILD_ID_VOLTAGE, S_MULTIMETER);

  //Print setup debug
  #ifdef DEBUG
    int duration = millis() - startTime;
    Serial.print("[Setup duration: "); Serial.print(duration, DEC); Serial.println(" ms]");
  #endif
  }

/**************************************************************************************/
/* Main loop                                                                          */
/**************************************************************************************/
void loop()
  {
  //Get time (for a complete loop)
  #ifdef DEBUG
    unsigned long startTime = millis();
  #endif

  //Read digital motion value
  uint8_t value = digitalRead(DIGITAL_INPUT_SENSOR);

  //Get voltage for battery capacity report (add 0.1v to the read value)
  float realVoltage = (getVoltage() / 100.0) + 0.1;
  int batteryPcnt = realVoltage * 100 / 3.0;
  if (batteryPcnt > 100) {batteryPcnt = 100;}

  //Check is state change
  if (value != switchState)
    {
    //Report result if not first loop
    if (firstReportDone != 0)
      {
      node.send(msgSwitch.set(value==HIGH ? 1 : 0));
      }

    //Store result
    switchState = value;
    }

  //Report data to the gateway each hour
  if (cycleInProgress >= BATTERY_REPORT_CYCLE || firstReportDone == 0)
    {
    node.send(msgSwitch.set(value==HIGH ? 1 : 0));
    node.send(msgVolt.set(realVoltage, 2));
    node.sendBatteryLevel(batteryPcnt);
    cycleInProgress = 0;
    firstReportDone = 1;
    }

  //Change cycle number
  cycleInProgress++;

  //Print debug
  #ifdef DEBUG
    Serial.print("Value is ");
    Serial.print(value, 1);
    Serial.print("   ");
    Serial.print("Cycle is ");
    Serial.print(cycleInProgress, 1);
    Serial.print("   ");
    Serial.print(realVoltage);
    Serial.print(" v");
    int duration = millis() - startTime;
    Serial.print("   ");
    Serial.print("["); Serial.print(duration, DEC); Serial.println(" ms]");
    Serial.flush();
  #endif

  //Check if the motion was triggered and if it's not the first report
  if (switchState == 0 && firstReportWithZeroDone == 1)
    {
    //Sleep 5' without interrupt
    node.sleep(SLEEP_TIME2);
    }

  //Check if it's the first loop
  if (switchState == 0 && firstReportWithZeroDone == 0)
    {
    firstReportWithZeroDone = 1;
    }

  //Sleep until something happens with the sensor
  node.sleep(DIGITAL_INPUT_SENSOR-2, CHANGE, SLEEP_TIME);
  }

/**************************************************************************************/
/* Allows to get the real Vcc (return value * 100).                                   */
/**************************************************************************************/
int getVoltage()
  {
  const long InternalReferenceVoltage = 1056L;
  ADMUX = (0<<REFS1) | (1<<REFS0) | (0<<ADLAR) | (1<<MUX3) | (1<<MUX2) | (1<<MUX1) | (0<<MUX0);
  delay(50);  // Let mux settle a little to get a more stable A/D conversion
  //Start a conversion  
  ADCSRA |= _BV( ADSC );
  //Wait for it to complete
  while (((ADCSRA & (1<<ADSC)) != 0));
  //Scale the value
  int result = (((InternalReferenceVoltage * 1023L) / ADC) + 5L) / 10L;
  return result;
  }

On one sensor I tweak the PIR (remove regulator and diode) but on a second one, I just plug the 3 v to the H pin (see other topic on the forum).

Working correctly for the moment (one month) but it depends on the presence in the house.

David.

Dylano

@ Carlied,

What code is better that one of you or the one from cosmi gate?

What are the different thing? Is your code check'the battery status?

And i get a error:
no matching function for call to 'MySensor::MySensor(MyTransportRFM69&, MyHwATMega328&, MySigningAtsha204Soft&)'

carlierd

The error is because I enable the signing function !
Remove the following line:

MySigningAtsha204Soft signer;

And replace

MySensor node(transport, hw, signer);

by

MySensor node(transport, hw);

I don't know who had the best sketch.
I measure internal battery status using the 1.1 reference.

David.

Dylano

When i put this sketch in to a nano..
With a 9volt battery....
How long do think this working?

Or how long is this acting on your 3 volt battery's?

carlierd

It depends on the activity close to the sensor so not possible to say but some people reach several month without problem.
In my house it's very fresh so I have not a lot of feedback to give.

David.

Dylano

5 days....:-1: on a 9volt block
The sketch on a nano
On my toilet.... so not a very busy room

Is there some one that live longer, with this sketch......?

Dylano

@icebob said:

@the-cosmic-gate Nothing special. I made a big sketch, which contains 7-8 sensors (DHT, Si7021, MQ-2/9, PIR, Door magnet, Light, battery) reading code because I would like to upload the same sketch to all nodes and configurate it on controller side, which sensors is on the node and need to read.
But currently I reached the limit with I2C includes, so I need to think over this solution.

Dear..
Did you finish your big code....

carlierd

Hello,

9v means that you are using a voltage regulator which probably consumes a lot of power.
Why not using AA or AAA battery directly connected to Vcc ?

David

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