3 in 1 incl battery monitor

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

Dylano

@carlierd said:

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

Motion and DHT needed 5volt i wash thinking..?
So 9 @ the vcc should be strong enough i was thinking.
And i do have @ the same time 3.5 for the radio

Are the extern step up better than the step down on a nano?

carlierd

The motion can be adapt to run on 3v easily (connect the Vcc to the H pad if available. You can find information on the forum). The DHT could also run on 3v. I have several nodes like that. No problem.
Can't reply for the step-up because I don't use it.

David.

Dylano

@carlierd said:

The motion can be adapt to run on 3v easily (connect the Vcc to the H pad if available. You can find information on the forum). The DHT could also run on 3v. I have several nodes like that. No problem.
Can't reply for the step-up because I don't use it.

David.

@ David

How long is the 3v battery running whit this option?

carlierd

@Dylano : My nodes are really new so difficult to say exactly but for the moment the oldest node was started one month ago (04/02) and battery still at 3.32v.

David.

the cosmic gate

i'am back in business after the "big move" and going to try again to get this 4:1 sensor working for a long time uning 2 x AA batteries.
If someone has some new input, please let me know :) and feel free to change the sketch

carlierd

@the-cosmic-gate
Hello,
Motion nodes are still working correctly. The oldest node started the 4 of February is still at 3,29v. My other nodes (temp / humidity / light) are also working correctly but I will replace DHT22 for another sensor.

David.

rhuehn

Hey @carlierd Just curious if you are still using a DHT22 with your sketch? Have you modified the code much from the above? I am looking at implementing something similiar ( identical actually ) and was wondering if much has changed for you over the last few months?

Thanks!

carlierd

Hello,

All nodes are still working correctly but I still want to replace DHT22. But nothing done for the moment. Not at top position on my todo list ;)

David.

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