Need help for my first time

[redfirebrooks]

Hello,
I finally decided to give a try to my sensors but with no luck yet.
I have configured my sensors gateway as a MGTT on a RPI 3 on with I am running Domoticz

I wanted to test a first sensor based on the MQ135 gaz sensor.
I have uploaded on my Arduino nano the sketch AirQualitySensor.ino

But it looks that the Arduino is booting every few seconds.

Whats wrong ?

The serial monitor logs :

16 MCO:BGN:INIT NODE,CP=RNNNA---,REL=255,VER=2.3.1
26 TSM:INIT
27 TSF:WUR:MS=0
33 TSM:INIT:TSP OK
35 TSM:FPAR
37 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
429 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
434 TSF:MSG:FPAR OK,ID=0,D=1
2046 TSM:FPAR:OK
2048 TSM:ID
2049 TSM:ID:REQ
2052 TSF:MSG:SEND,255-255-0-0,s=1,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
4059 TSM:ID
4060 TSM:ID:REQ
4062 TSF:MSG:SEND,255-255-0-0,s=220,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
6070 TSM:ID
6071 TSM:ID:REQ
6073 TSF:MSG:SEND,255-255-0-0,s=183,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
8081 TSM:ID
8082 TSM:ID:REQ
8084 TSF:MSG:SEND,255-255-0-0,s=146,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
10092 !TSM:ID:FAIL
10093 TSM:FAIL:CNT=1
10095 TSM:FAIL:DIS
10097 TSF:TDI:TSL
20100 TSM:FAIL:RE-INIT
20102 TSM:INIT
20108 TSM:INIT:TSP OK
20110 TSM:FPAR
20113 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
22120 !TSM:FPAR:NO REPLY
22122 TSM:FPAR
22124 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
23088 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
23093 TSF:MSG:FPAR OK,ID=0,D=1
24132 TSM:FPAR:OK
24133 TSM:ID
24135 TSM:ID:REQ
24137 TSF:MSG:SEND,255-255-0-0,s=71,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
26145 TSM:ID
26146 TSM:ID:REQ
26149 TSF:MSG:SEND,255-255-0-0,s=34,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
28157 TSM:ID
28158 TSM:ID:REQ
28162 TSF:MSG:SEND,255-255-0-0,s=254,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
30169 TSM:ID
30170 TSM:ID:REQ
30173 TSF:MSG:SEND,255-255-0-0,s=218,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
32180 !TSM:ID:FAIL
32181 TSM:FAIL:CNT=2
32183 TSM:FAIL:DIS
32185 TSF:TDI:TSL
42188 TSM:FAIL:RE-INIT
42190 TSM:INIT
42196 TSM:INIT:TSP OK
42199 TSM:FPAR
42202 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
44209 !TSM:FPAR:NO REPLY
44211 TSM:FPAR
44213 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
46221 !TSM:FPAR:NO REPLY
46223 TSM:FPAR
46225 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
46716 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
46722 TSF:MSG:FPAR OK,ID=0,D=1
48233 TSM:FPAR:OK
48234 TSM:ID
48235 TSM:ID:REQ
48238 TSF:MSG:SEND,255-255-0-0,s=107,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
50246 TSM:ID
50247 TSM:ID:REQ
50250 TSF:MSG:SEND,255-255-0-0,s=71,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
52257 TSM:ID```

[mfalkvidd]

Hi @redfirebrooks, welcome to the MySensors community!

!TSM:ID:FAIL

means that the node did not receive any id from the controller. I don't think Domoticz supports dynamic id assignment over mqtt. You'll need to assign id to your nodes manually by adding

#define MY_NODE_ID 42

before including MySensors.h, where 42 is the unique number (1-254) you want to give the node. More info: https://www.mysensors.org/apidocs/group__RoutingNodeSettingGrpPub.html#gac677233da7f20bbf93cb479471e3234e

The node is not rebooting. If it was rebooting you would see MCO:BGN:INIT NODE,CP=RNNNA---,REL=255,VER=2.3.1 over and over again.

If you haven't already, check out https://forum.mysensors.org/topic/666/debug-faq-and-how-ask-for-help/ for the most common problem and how to troubleshoot them most efficiently, including how touse the log parser to translate the logs to something that's easer to read.

[redfirebrooks]

Thanks, looks promising

my serial monitor gives now

16 MCO:BGN:INIT NODE,CP=RNNNA---,REL=255,VER=2.3.1
26 TSM:INIT
27 TSF:WUR:MS=0
33 TSM:INIT:TSP OK
35 TSM:INIT:STATID=42
37 TSF:SID:OK,ID=42
39 TSM:FPAR
75 TSF:MSG:SEND,42-42-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
91 TSF:MSG:READ,0-0-42,s=255,c=3,t=8,pt=1,l=1,sg=0:0
96 TSF:MSG:FPAR OK,ID=0,D=1
2083 TSM:FPAR:OK
2084 TSM:ID
2085 TSM:ID:OK
2087 TSM:UPL
2093 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
2099 TSF:MSG:READ,0-0-42,s=255,c=3,t=25,pt=1,l=1,sg=0:1
2104 TSF:MSG:PONG RECV,HP=1
2107 TSM:UPL:OK
2108 TSM:READY:ID=42,PAR=0,DIS=1
2113 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=OK:0100
2122 TSF:MSG:READ,0-0-42,s=255,c=3,t=15,pt=6,l=2,sg=0:0100
2129 TSF:MSG:SEND,42-42-0-0,s=255,c=0,t=17,pt=0,l=5,sg=0,ft=0,st=OK:2.3.1
2139 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=6,pt=1,l=1,sg=0,ft=0,st=OK:0
4150 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=11,pt=0,l=18,sg=0,ft=0,st=OK:Air Quality Sensor
4159 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=12,pt=0,l=3,sg=0,ft=0,st=OK:1.0
4167 TSF:MSG:SEND,42-42-0-0,s=0,c=0,t=22,pt=0,l=0,sg=0,ft=0,st=OK:
4173 MCO:REG:REQ
4177 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=OK:2
4184 TSF:MSG:READ,0-0-42,s=255,c=3,t=27,pt=1,l=1,sg=0:1
4189 MCO:PIM:NODE REG=1
4191 MCO:BGN:STP
29201 MCO:BGN:INIT OK,TSP=1
0
LPG:0ppm    CO:0ppm    SMOKE:0ppm
30211 MCO:SLP:MS=30000,SMS=0,I1=255,M1=255,I2=255,M2=255
30216 TSF:TDI:TSL
30218 MCO:SLP:WUP=-1
30220 TSF:TRI:TSB
0
LPG:0ppm    CO:0ppm    SMOKE:0ppm
31232 MCO:SLP:MS=30000,SMS=0,I1=255,M1=255,I2=255,M2=255
31238 TSF:TDI:TSL````

So values are always 0 so something is wrong with the sensor.
And I can't find it in Domoticz also.

Not so easy

[mfalkvidd]

Nice work @redfirebrooks

The log shows that the sensor does not send any values. Domoticz only shows sensors after they have sent their first value, so that's why the sensor does not show in Domoticz. (Why Domoticz behaves like this is a mystery to everyone.)

I don't have experience with this sensor, but my guess would be a problem with the wiring. Could you post photos of the wiring? A second pair of eyes is often helpful to spot problems.

[redfirebrooks]

Not sure it will help

Have tested the wiring with another sketch and it is good, it returns me values

/*
  Programme de test du MQ135 permettant de mesurer la présence de polluants dans l'atmosphère (CO, CO2 Alcool, fumées...)
  Pour plus d'infos ici https://www.projetsdiy.fr/mq135-mesure-qualite-air-polluant-arduino
  Utilise la librairie mq135.cpp mise à disposition par Georg Krocker https://github.com/GeorgK/MQ135
  Projets DIY - Mars 2016 - www.projetsdiy.fr
*/

#include "MQ135.h"
const int mq135Pin = 0;     // Pin sur lequel est branché de MQ135

MQ135 gasSensor = MQ135(mq135Pin);  // Initialise l'objet MQ135 sur le Pin spécifié

void setup()
{
    Serial.begin(9600);     // Initialise le port série à 9600 bps 
    //float rzero = gasSensor.getRZero();
    //Serial.print("R0: ");
    //Serial.println(rzero);  // Valeur à reporter ligne 27 du fichier mq135.h après 48h de préchauffage
    
}

void loop()
{
    float ppm = gasSensor.getPPM();
    float rzero = gasSensor.getRZero();
    Serial.print("R0: ");
    Serial.print(rzero);
    Serial.print(" A0: ");
    Serial.print(analogRead(mq135Pin));
    Serial.print(" ppm CO2: ");
    Serial.println(ppm);
    delay(1000);        // Actualise la mesure chaque seconde```

[redfirebrooks]

Ok so I managed to make it works using a specific MQ135 sketch, I thought the one in the examples folder was compatible with a MQ135...

But, even if now I have readings, I do not see them in Domoticz.
Something wrong on the Domoticz side ? but what ?

16 MCO:BGN:INIT NODE,CP=RNNNA---,REL=255,VER=2.3.1
26 TSM:INIT
27 TSF:WUR:MS=0
33 TSM:INIT:TSP OK
35 TSF:SID:OK,ID=42
37 TSM:FPAR
73 TSF:MSG:SEND,42-42-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
679 TSF:MSG:READ,0-0-42,s=255,c=3,t=8,pt=1,l=1,sg=0:0
684 TSF:MSG:FPAR OK,ID=0,D=1
2081 TSM:FPAR:OK
2082 TSM:ID
2083 TSM:ID:OK
2085 TSM:UPL
2088 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
2095 TSF:MSG:READ,0-0-42,s=255,c=3,t=25,pt=1,l=1,sg=0:1
2100 TSF:MSG:PONG RECV,HP=1
2103 TSM:UPL:OK
2104 TSM:READY:ID=42,PAR=0,DIS=1
2109 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=OK:0100
2115 TSF:MSG:READ,0-0-42,s=255,c=3,t=15,pt=6,l=2,sg=0:0100
2123 TSF:MSG:SEND,42-42-0-0,s=255,c=0,t=17,pt=0,l=5,sg=0,ft=0,st=OK:2.3.1
2131 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=6,pt=1,l=1,sg=0,ft=0,st=OK:0
4141 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=11,pt=0,l=16,sg=0,ft=0,st=OK:AIQ Sensor MQ135
4150 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=12,pt=0,l=3,sg=0,ft=0,st=OK:1.0
4158 TSF:MSG:SEND,42-42-0-0,s=0,c=0,t=22,pt=0,l=0,sg=0,ft=0,st=OK:
4164 MCO:REG:REQ
4168 TSF:MSG:SEND,42-42-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=OK:2
4174 TSF:MSG:READ,0-0-42,s=255,c=3,t=27,pt=1,l=1,sg=0:1
4179 MCO:PIM:NODE REG=1
4182 MCO:BGN:STP
4184 MCO:BGN:INIT OK,TSP=1
0
Val / Ro / value:19523 / 30443.00 / 0.004188 MCO:SLP:MS=30000,SMS=0,I1=255,M1=255,I2=255,M2=255
4195 TSF:TDI:TSL
4197 MCO:SLP:WUP=-1
4199 TSF:TRI:TSB
0
Val / Ro / value:22654 / 35325.00 / 0.004206 MCO:SLP:MS=30000,SMS=0,I1=255,M1=255,I2=255,M2=255
4213 TSF:TDI:TSL
4215 MCO:SLP:WUP=-1
4217 TSF:TRI:TSB
0
Val / Ro / value:29383 / 45818.00 / 1217.494228 TSF:MSG:SEND,42-42-0-0,s=0,c=1,t=37,pt=2,l=2,sg=0,ft=0,st=OK:1617
4234 MCO:SLP:MS=30000,SMS=0,I1=255,M1=255,I2=255,M2=255
4239 TSF:TDI:TSL
4241 MCO:SLP:WUP=-1
4243 TSF:TRI:TSB
0
Val / Ro / value:27682 / 43165.00 / 1436.084253 TSF:MSG:SEND,42-42-0-0,s=0,c=1,t=37,pt=2,l=2,sg=0,ft=0,st=OK:1836
4259 MCO:SLP:MS=30000,SMS=0,I1=255,M1=255,I2=255,M2=255
4264 TSF:TDI:TSL```

[mfalkvidd]

@redfirebrooks according to the log, the node is not sending any measurement data. It just goes to sleep over and over again.

Hard to tell why this happens without seeing the exact sketch code. Would you mind posting it?

EDIT: Sorry, was on mobile and didn't see that the values were being sent, just not on the first two sleep periods. These lines show that the node is sending values (first the value 1617, later the value 1846).

TSF:MSG:SEND,42-42-0-0,s=0,c=1,t=37,pt=2,l=2,sg=0,ft=0,st=OK:1617
TSF:MSG:SEND,42-42-0-0,s=0,c=1,t=37,pt=2,l=2,sg=0,ft=0,st=OK:1836

So it seems like the problem is that Domoticz is unable to display the information.

What does the Hardware->Setup page looks for the MySensors gateway?
What is shown on the "Devices" page in Domoticz?