Hello,

Lost posts, but the sketches are still here:

https://github.com/empierre/arduino

• MQ135.ino : for CO2/COV ... validated
• MQ2.ino : for ethanol... still ongoing...
• PressureSensor.ino : validated, works well, too much temp reading given back
• SoundSensor2.ino: not yet tested
• UVsensor.ino : validated
• WaterMeterPulseSensor2.ino : for use with water meter that have a reed switch, validated

Next steps:

• validate sound sensor
• validate mq2 sensor (I dont smoke...hart to trigger...)
• MQ6 sensor
• MQ131 sensor
• TGS2600 sensor

@hek I have them all already:

Water leak,Moisture : my leaf wetness
Sound: I have stopped by waiting to have a real decibel algorithm... but I need FFT for that...
Vibration: done it too help yourself !

https://github.com/empierre/arduino/blob/master/FloodSensor.ino
https://github.com/empierre/arduino/blob/master/LeafWetnessSensor.ino
https://github.com/empierre/arduino/blob/master/SoundSensor2.ino
https://github.com/empierre/arduino/blob/master/VibrationSensor.ino

Hello,

A friend of mine has a Sensus Residia Jet water meter, which can work through Z-wave with a "Secure SWM301 Water Meter Sensor".

Only one domotic box support it but not the other at this time, so I tried to make it work with mysensors..

I have found a way based on "DFRobot Analog Grayscale Sensor V2" that works !

The sensor: http://www.dfrobot.com/index.php?route=product/product&product_id=81

Simply scotch the sensor on the counter so that it detects the wheel (no magnet or visual signal on this counter... the zwave sensors uses VLF induction with two tors).

/*
 Use this sensor to measure volume and flow of your house watermeter.
 You need to set the correct pulsefactor of your meter (pulses per m3).
 The sensor starts by fetching current volume reading from gateway (VAR 1).
 Reports both volume and flow back to gateway.

 Sensor on pin analog 0
 
 DFRobot Analog Grayscale Sensor V2
 Watermeter sensus Residia Jet
 
 http://www.dfrobot.com/index.php?route=product/product&product_id=81

Contribution: Hek, adapted by epierre to greyscale sensor water meter
  License: Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)


*/

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

#define ANALOG_INPUT_SENSOR 0                   // The analog input you attached your sensor. 
#define PULSE_FACTOR 1000                       // Nummber of blinks per m3 of your meter (One rotation/liter)
#define SLEEP_MODE false                        // flowvalue can only be reported when sleep mode is false.
#define MAX_FLOW 40                             // Max flow (l/min) value to report. This filetrs outliers.
#define INTERRUPT DIGITAL_INPUT_SENSOR-2        // Usually the interrupt = pin -2 (on uno/nano anyway)
#define CHILD_ID 5                              // Id of the sensor child
unsigned long SEND_FREQUENCY = 20000;           // Minimum time between send (in seconds). We don't want to spam the gateway.

MySensor gw;
MyMessage flowMsg(CHILD_ID,V_FLOW);
MyMessage volumeMsg(CHILD_ID,V_VOLUME);
MyMessage pcMsg(CHILD_ID,V_VAR1);
 
double ppl = ((double)PULSE_FACTOR)/1000;        // Pulses per liter

volatile unsigned long pulseCount = 0;   
volatile unsigned long lastBlink = 0;
volatile double flow = 0;   
boolean pcReceived = false;
unsigned long oldPulseCount = 0;
unsigned long newBlink = 0;   
double oldflow = 0;
double volume;                     
double oldvolume;
unsigned long lastSend;
unsigned long lastPulse;
unsigned long currentTime;
boolean metric;
long lastDebounce = 0;
long debounceDelay = 500;    // Ignore bounces under 1/2 second
int oldval =0;
int val=0;


void setup()  
{  
  gw.begin(incomingMessage); 
  
  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Water Meter", "1.0 greyscale");

  // Register this device as Waterflow sensor
  gw.present(CHILD_ID, S_WATER);       

  // Fetch last known pulse count value from gw
   gw.request(CHILD_ID, V_VAR1);

  //Serial.print("Last pulse count from gw:");
  //Serial.println(pulseCount);
  //  attachInterrupt(INTERRUPT, onPulse, RISING);
  lastSend = millis();
  
  //led blinking
  pinMode(13, OUTPUT);
}


void loop()     
{ 
  gw.process();
  currentTime = millis();

  val=analogRead(0);
  //Serial.println(val);
  if ((oldval <100) and (val >100)) {
    pulseCount++;
    oldval=val;
  } else {
        oldval=val;
  }
  delay(100);	
    // Only send values at a maximum frequency or woken up from sleep
  bool sendTime = currentTime - lastSend > SEND_FREQUENCY;
  
    // Pulse count has changed
    if (pulseCount != oldPulseCount) {
      gw.send(pcMsg.set(pulseCount));                  // Send  volumevalue to gw VAR1
      double volume = ((double)pulseCount/((double)PULSE_FACTOR));     
      oldPulseCount = pulseCount;
      if (volume != oldvolume) {
        gw.send(volumeMsg.set(volume, 3));               // Send volume value to gw
        //Serial.print("V=");
        //Serial.println(volume);
        oldvolume = volume;
      } 
    }
    lastSend = currentTime;
    if (sendTime && !pcReceived) {
    // No count received. Try requesting it again
    gw.request(CHILD_ID, V_VAR1);
    lastSend=currentTime;
    }
  
  
}


void incomingMessage(const MyMessage &message) {
  if (message.type==V_VAR1) {  
    pulseCount = oldPulseCount = message.getLong();
    Serial.print("Received last pulse count from gw:");
    Serial.println(pulseCount);
    pcReceived = true;
  }
}

Here a picture of the emitter, a Nano with high range antennae in a box !

A new sketch using a simpler vibration sensor than the one on the store, this one has only one output to go into digital pin 3 hich is PWM.

VibrationSensor.ino

The sketch uses the interrupt to count the value between too sending to gateway (sleep time).

Globally the sensor is not that much sensitive, some people use the piezzo one for seismic activity monitoring, this one is more door knock measurement. As I write, it is on my keyboard and does not report anything, but if I knock on the keyboard a value is reported.

@hek I would need a value too for this one...

Ok so today I've added a conf file reading, and started to work on the database model (hardware-device-sensor) in sqlite3 to keep track of last known value and last affected sensor id. This speeds up the whole thing at startup.

Next step is to store all devices data in the table, and update them whenever they are received.

Afterward, I'll try creating a new sensor automatically, and then try to extend it to other sensors type.

If anyone is interrested in trying it (very beta yet...)...

not with mysensors, but could have been: CNY70 water sensor meter (rotating wheel) with extended wifi range, the heart of it is a Particle Photon pushing to domoticz

Two ways of doing it:

1 - With capacitors:
http://forum.arduino.cc/index.php/topic,22250.0.html

2- By alternating the voltage way:
http://vanderleevineyard.com/1/category/vinduino/1.html

The resistance has to be moved to 4700ohms.

The formula from the datasheet is known:
http://www.kimberly.uidaho.edu/water/swm/Calibration_Watermark2.htm

Hy there, added an AMS1117 regulator board and a 4,7uF and this works agains ! thanks all for your help !

I'm now testing the MICS-6814 (3 sensors in one) given for :
Carbon monoxide CO 1 -1000ppm
**Nitrogen dioxide NO2 0.05 –10ppm **
Ethanol C2H5OH 10 –500ppm
Hydrogen H2 1 –1000ppm
Ammonia NH3 1 –500ppm
Methane CH4 >1000ppm
Propane C3H8 >1000ppm
Iso-butane C4H10 >1000ppm

Datasheet maionly speaks on CO, NO2 and NH3:
http://www.seeedstudio.com/wiki/images/1/10/MiCS-6814_Datasheet.pdf

Here is are scripts:
http://www.seeedstudio.com/wiki/Grove_-_Multichannel_Gas_Sensor

http://www.seeedstudio.com/wiki/images/1/10/MiCS-6814_Datasheet.pdf

Some readings:

The concentration of NH3 is 0.99 ppm
The concentration of CO is 1.20 ppm
The concentration of NO2 is 0.15 ppm
The concentration of C3H8 is 1000.04 ppm
The concentration of C4H10 is 999.98 ppm
The concentration of CH4 is 2991.14 ppm
The concentration of H2 is 1.09 ppm
The concentration of C2H5OH is 1.40 ppm

I guess I'll make a script soon...

intermediary result: I have started a second gateway and now the nodes do communicate... puzzled...

I remove the extra gateway... same situation...

so reprogram gateway with:
#define MY_RF24_PA_LEVEL RF24_PA_LOW

so it seems this was the responsible for this !

thanks !

will try to put it in debug mode. now I've added a 1u and 100u with no result

Hello,

Today I migrated my gateway from 1.5.1 to 2.3.2, tested it fine.

Then I started trying to reprogram my sensors to 2.3.2 and none works. No wiring changed, previously fine working (CO2, DSM dust sensor)

16 MCO:BGN:INIT NODE,CP=RNNNA---,FQ=16,REL=255,VER=2.3.2
26 TSM:INIT
28 TSF:WUR:MS=0
34 TSM:INIT:TSP OK
36 TSF:SID:OK,ID=20
38 TSM:FPAR
41 ?TSF:MSG:SEND,20-20-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
2050 !TSM:FPAR:NO REPLY
2052 TSM:FPAR
2056 ?TSF:MSG:SEND,20-20-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
3899 TSF:MSG:READ,3-3-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
3904 TSF:MSG:BC
4063 !TSM:FPAR:NO REPLY
4065 TSM:FPAR
4069 ?TSF:MSG:SEND,20-20-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
5923 TSF:MSG:READ,3-3-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
5928 TSF:MSG:BC
6076 !TSM:FPAR:NO REPLY
6078 TSM:FPAR
6082 ?TSF:MSG:SEND,20-20-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
7947 TSF:MSG:READ,3-3-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
7952 TSF:MSG:BC
8089 !TSM:FPAR:FAIL
8090 TSM:FAIL:CNT=1
8092 TSM:FAIL:DIS
8094 TSF:TDI:TSL

Hy there, added an AMS1117 regulator board and a 4,7uF and this works agains ! thanks all for your help !

Hello,

my box:
https://photos.app.goo.gl/MQijz9SK8wBMnic47

can AMS1117 be enough or not powerful enough (I have some).

Not US sadly, but amazon has more stock than local providers as it seems, thanks for the hint !

Hello,

I have a basic arduino pro micro and the 3.3V is from the board. All is directly wired on it (arduino to ebyte module with antenna)

I suspect maybe that the 5V may not be that powerfull, I will enquire (I modified something recently...not sure anymore). Usually it is from phone charger. I've seen I have not changed the gain in the radio too, same code for a long time, my whole network is still in 1.6

I've searched for the ld1117d33 (retired) or its clone, seems difficult to find.

Hello,

I have a water counter that requires a value from the gateway.

So the request is received but the answer is never received as it seems.

Both are with a 5V 1A power generator, toward the arduino mini pro, then the 3.3V directly to the module.

I've looked at the datasheet, I've seen nothing about a capacitor ?

Hi All,

I wanted to use Ebyte nRF24L01P Wireless rf Transceiver E01-2G4M27D 27dBm SPI 2.4GHz with a bif antenna: TX2400-JKD-20 3.0dBi Flexible 2.4GHz RF

But it seems an emission issue on the gateway side where I did put it.

It is directly wired to the arduino.

Any idea ?

maybe check what they did here:
https://github.com/airgradienthq/arduino/blob/master/AirGradient.cpp

thanks for this survey !: