Air Humidity Sensor can't reach Gateway



  • Hi folks,

    I'm just getting started and having a hard time getting my Arduino Pro Mini talking to my Raspberry pi running Domoticz. Both client and gateway are using the nRF24L01+ module.

    I have a DHT22 sensor connected to the Arduino and can confirm that it's reading values correctly (using a DHT example). I'm now running the following code, adapted from the Air Humidity examples page:

    /**
     * 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: Henrik EKblad
     * Version 1.1 - 2016-07-20: Converted to MySensors v2.0 and added various improvements - Torben Woltjen (mozzbozz)
     * 
     * DESCRIPTION
     * This sketch provides an example of how to implement a humidity/temperature
     * sensor using a DHT11/DHT-22.
     *  
     * For more information, please visit:
     * http://www.mysensors.org/build/humidity
     * 
     */
    
    // Enable debug prints
    #define MY_DEBUG
    
    #define MY_NODE_ID 255
    #define MY_PARENT_NODE_ID 0
    #define MY_PARENT_NODE_IS_STATIC
    
    // Enable and select radio type attached 
    #define MY_RADIO_NRF24
    //#define MY_RADIO_RFM69
    //#define MY_RS485
    
    //#define MY_RF24_PA_LEVEL RF24_PA_MAX
    #define MY_RF24_PA_LEVEL RF24_PA_MAX
    #define MY_RF24_DATARATE RF24_2MBPS
     
    #include <SPI.h>
    #include <MySensors.h>  
    #include <DHT.h>
    
    // Set this to the pin you connected the DHT's data pin to
    #define DHT_DATA_PIN 3
    
    // Set this offset if the sensor has a permanent small offset to the real temperatures
    #define SENSOR_TEMP_OFFSET 0
    
    // Sleep time between sensor updates (in milliseconds)
    // Must be >1000ms for DHT22 and >2000ms for DHT11
    static const uint64_t UPDATE_INTERVAL = 5000;
    
    // Force sending an update of the temperature after n sensor reads, so a controller showing the
    // timestamp of the last update doesn't show something like 3 hours in the unlikely case, that
    // the value didn't change since;
    // i.e. the sensor would force sending an update every UPDATE_INTERVAL*FORCE_UPDATE_N_READS [ms]
    static const uint8_t FORCE_UPDATE_N_READS = 10;
    
    #define CHILD_ID_HUM 10
    #define CHILD_ID_TEMP 11
    
    float lastTemp;
    float lastHum;
    uint8_t nNoUpdatesTemp;
    uint8_t nNoUpdatesHum;
    bool metric = true;
    
    MyMessage msgHum(CHILD_ID_HUM, V_HUM);
    MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
    DHT dht;
    
    
    void presentation()  
    { 
    
      // Send the sketch version information to the gateway
      sendSketchInfo("TemperatureAndHumidity", "1.1");
      
      // Register all sensors to gw (they will be created as child devices)
      present(CHILD_ID_HUM, S_HUM);
      present(CHILD_ID_TEMP, S_TEMP);
      
      metric = getControllerConfig().isMetric;
    }
    
    
    void setup()
    {
      dht.setup(DHT_DATA_PIN); // set data pin of DHT sensor
      if (UPDATE_INTERVAL <= dht.getMinimumSamplingPeriod()) {
        Serial.println("Warning: UPDATE_INTERVAL is smaller than supported by the sensor!");
      }
      // Sleep for the time of the minimum sampling period to give the sensor time to power up
      // (otherwise, timeout errors might occure for the first reading)
      sleep(dht.getMinimumSamplingPeriod());
    }
    
    
    void loop()      
    {  
      // Force reading sensor, so it works also after sleep()
      dht.readSensor(true);
      
      // Get temperature from DHT library
      float temperature = dht.getTemperature();
      if (isnan(temperature)) {
        Serial.println("Failed reading temperature from DHT!");
      } else if (temperature != lastTemp || nNoUpdatesTemp == FORCE_UPDATE_N_READS) {
        // Only send temperature if it changed since the last measurement or if we didn't send an update for n times
        lastTemp = temperature;
        if (!metric) {
          temperature = dht.toFahrenheit(temperature);
        }
        // Reset no updates counter
        nNoUpdatesTemp = 0;
        temperature += SENSOR_TEMP_OFFSET;
    
        send(msgTemp.set(temperature, 1));
    
        #ifdef MY_DEBUG
        Serial.print("T: ");
        Serial.println(temperature);
        #endif
      } else {
        // Increase no update counter if the temperature stayed the same
        nNoUpdatesTemp++;
      }
    
      // Get humidity from DHT library
      float humidity = dht.getHumidity();
      if (isnan(humidity)) {
        Serial.println("Failed reading humidity from DHT");
      } else if (humidity != lastHum || nNoUpdatesHum == FORCE_UPDATE_N_READS) {
        // Only send humidity if it changed since the last measurement or if we didn't send an update for n times
        lastHum = humidity;
        // Reset no updates counter
        nNoUpdatesHum = 0;
        send(msgHum.set(humidity, 1));
        
        #ifdef MY_DEBUG
        Serial.print("H: ");
        Serial.println(humidity);
        #endif
      } else {
        // Increase no update counter if the humidity stayed the same
        nNoUpdatesHum++;
      }
    
    
      
      // Sleep for a while to save energy
      sleep(UPDATE_INTERVAL); 
    }
    

    On the Arduino side, I seem to get stuck in a loop where the originating message doesn't get through to my gateway:

    0 MCO:BGN:INIT NODE,CP=RNNNA---,VER=2.2.0-beta
    49 TSM:INIT
    51 TSF:WUR:MS=0
    57 TSM:INIT:TSP OK
    59 TSM:INIT:STATID=10
    61 TSF:SID:OK,ID=10
    63 TSM:FPAR
    65 TSM:FPAR:STATP=0
    67 TSM:ID
    67 TSM:ID:OK
    69 TSM:UPL
    98 !TSF:MSG:SEND,10-10-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=NACK:1
    2107 TSM:UPL
    2136 !TSF:MSG:SEND,10-10-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=1,st=NACK:1
    4145 TSM:UPL
    4173 !TSF:MSG:SEND,10-10-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=2,st=NACK:1
    6184 TSM:UPL
    6213 !TSF:MSG:SEND,10-10-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=3,st=NACK:1
    8222 !TSM:UPL:FAIL
    8224 TSM:FPAR
    8224 TSM:FPAR:STATP=0
    8226 TSM:ID
    8228 TSM:ID:OK
    8230 TSM:UPL
    8259 !TSF:MSG:SEND,10-10-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=4,st=NACK:1
    10268 TSM:UPL
    10297 !TSF:MSG:SEND,10-10-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=5,st=NACK:1
    12306 TSM:UPL
    12335 !TSF:MSG:SEND,10-10-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=6,st=NACK:1
    14344 TSM:UPL
    14372 !TSF:MSG:SEND,10-10-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=7,st=NACK:1
    16384 !TSM:UPL:FAIL
    

    Something seems to be getting through to my RPi gateway, though, because Domoticz shows the following:
    0_1496356930318_upload-e38cf963-c71e-44f1-838a-506ca9e1c9d4

    Any suggestions would be very welcome. I've tried adding a capacitor across the power supply as suggested, as well as changing the transmit power levels on the Arduino radio, to no avail.

    Thanks in advance!


  • Hardware Contributor

    @egfku - I would say its a range or power issue. I would start here: https://forum.mysensors.org/topic/666/debug-faq-and-how-ask-for-help and go through that. Also you can parse your code into this: https://www.mysensors.org/build/parser and get more info out of it.

    Do you have capacitors on your radios? This is crucial! What distance are we talking about between node and gw? You can try moving they closer (or if they are really close - move them apart). Did you check the radio before using them (since there are alof of fake radios out there which perform really bad).

    You can also try to change the settings on the since you have made that into your code. Might be that the radio is shouting to loud (and/or not getting enough power to do so). How do you power the radios? Its really important and more important if you use the pa/lna version of the radio.



  • @egfku I'm a bit new at this stuff too so I could be off base, but isn't node ID 255 reserved for broadcast? Try setting the MY_NODE_ID to something between 1 and 254.


  • Hero Member

    @Marik is right !


  • Hardware Contributor

    @Nca78 - Jupp! Well spottet @Marik !



  • Hi everyone,

    Thank you for your replies! I think @sundberg84 is probably right that there's something wrong with the radio attached to my Arduino. I did try adding a 10uF capacitor, changing the power source, as well as swapping out a different radio, but that didn't seem to help. I've ordered some MCP1702 voltage regulators that hopefully will improve things.

    I did also try to directly specify the node ID, which is seen by my gateway, but it looks like the Arduino can't hear the gateway's response:

    
    pi@rpi:~ $ sudo mysgw -d
    mysgw: Starting gateway...
    mysgw: Protocol version - 2.1.1
    mysgw: MCO:BGN:INIT GW,CP=RNNG---,VER=2.1.1
    mysgw: TSF:LRT:OK
    mysgw: TSM:INIT
    mysgw: TSF:WUR:MS=0
    mysgw: TSM:INIT:TSP OK
    mysgw: TSM:INIT:GW MODE
    mysgw: TSM:READY:ID=0,PAR=0,DIS=0
    mysgw: MCO:REG:NOT NEEDED
    mysgw: Listening for connections on 0.0.0.0:5003
    mysgw: MCO:BGN:STP
    mysgw: MCO:BGN:INIT OK,TSP=1
    mysgw: TSF:MSG:READ,128-128-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
    mysgw: TSF:MSG:BC
    mysgw: TSF:MSG:FPAR REQ,ID=128
    mysgw: TSF:CKU:OK,FCTRL
    mysgw: TSF:MSG:GWL OK
    mysgw: !TSF:MSG:SEND,0-0-128-128,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0
    mysgw: TSF:MSG:READ,128-128-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
    mysgw: TSF:MSG:BC
    mysgw: TSF:MSG:FPAR REQ,ID=128
    mysgw: TSF:CKU:OK,FCTRL
    mysgw: TSF:MSG:GWL OK
    mysgw: !TSF:MSG:SEND,0-0-128-128,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0
    

    The parser says the gateway isn't getting acknowledged:

    TSF:MSG:SEND,0-0-128-128,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0

    Sent Message
    Sender: 0
    Last Node: 0
    Next Node: 128
    Destination: 128
    Sensor Id: 255
    Command: INTERNAL
    Message Type:I_FIND_PARENT_RESPONSE
    Payload Type: P_BYTE
    Payload Length: 1
    Signing: 0
    Failed uplink counter: 0
    Status: NACK (OK=success, NACK=no radio ACK received)
    Payload: 0

    Will keep testing and update if I get any joy!


  • Hero Member

    @egfku said in Air Humidity Sensor can't reach Gateway:

    Sensor Id: 255

    It cannot work like that. Node ID 255 is for broadcast, and for broadcast ACK will never be sent back.

    You should first reset the eprom config that is now written in your arduino.for that, in Arduino menu open File/Examples/MySensors/ClearEpromConfig example sketch and run it.
    Then put a sketch with the lines below commented :

    #define MY_NODE_ID 255
    #define MY_PARENT_NODE_ID 0
    #define MY_PARENT_NODE_IS_STATIC
    

    Also it doesn't seem to be a good idea to set data rate of NRF24 to 2MPS when you believe you have a radio communication/range problem. Keep the default value of 250K so you will have better range, for that comment the line below.
    (Of course you must have the same config on your gateway)

    #define MY_RF24_DATARATE RF24_2MBPS
    


  • Thanks for the note, @Nca78 . It seems like my systems defaults to an ID of 255, though. I swapped out another Pro Mini and another radio (debugged the Arduino side using the RF24 library), and now I'm seeing more traffic between the Arduino and the RPi, though it seems to fall over at receiving an ID.

    Note that I ran the ClearEpromConfig example immediately before pushing the MotionSensor example (no changes, did not define MY_NODE_ID).

    Arduino:

    0 MCO:BGN:INIT NODE,CP=RNNNA--,VER=2.1.1
    4 TSM:INIT
    4 TSF:WUR:MS=0
    12 TSM:INIT:TSP OK
    14 TSM:FPAR
    16 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    2025 !TSM:FPAR:NO REPLY
    2027 TSM:FPAR
    2029 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    2037 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
    2043 TSF:MSG:FPAR OK,ID=0,D=1
    4038 TSM:FPAR:OK
    4038 TSM:ID
    4040 TSM:ID:REQ
    4044 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
    6051 TSM:ID
    6051 TSM:ID:REQ
    6055 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
    8065 TSM:ID
    8065 TSM:ID:REQ
    8069 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
    10076 TSM:ID
    10076 TSM:ID:REQ
    10080 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
    12089 !TSM:ID:FAIL
    12091 TSM:FAIL:CNT=1
    12093 TSM:FAIL:PDT
    22097 TSM:FAIL:RE-INIT
    22099 TSM:INIT
    22106 TSM:INIT:TSP OK
    22110 TSM:FPAR
    22112 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    24121 !TSM:FPAR:NO REPLY
    24123 TSM:FPAR
    24125 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    26134 !TSM:FPAR:NO REPLY
    26136 TSM:FPAR
    26138 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    28147 !TSM:FPAR:NO REPLY
    28149 TSM:FPAR
    28151 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    30162 !TSM:FPAR:FAIL
    30164 TSM:FAIL:CNT=2
    30167 TSM:FAIL:PDT
    40171 TSM:FAIL:RE-INIT
    40173 TSM:INIT
    40179 TSM:INIT:TSP OK
    40183 TSM:FPAR
    40185 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    42196 !TSM:FPAR:NO REPLY
    42199 TSM:FPAR
    42201 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    42209 TSF:MSG:READ,0-0-255,s=255,c=3,t=8,pt=1,l=1,sg=0:0
    42215 TSF:MSG:FPAR OK,ID=0,D=1
    44210 TSM:FPAR:OK
    44212 TSM:ID
    44212 TSM:ID:REQ
    44216 TSF:MSG:SEND,255-255-0-0,s=255,c=3,t=3,pt=0,l=0,sg=0,ft=0,st=OK:
    

    RPi:

    
    pi@rpi:~/projects/RF24/rf24libs/RF24/examples_linux $ sudo mysgw -d
    mysgw: Starting gateway...
    mysgw: Protocol version - 2.1.1
    mysgw: MCO:BGN:INIT GW,CP=RNNG---,VER=2.1.1
    mysgw: TSF:LRT:OK
    mysgw: TSM:INIT
    mysgw: TSF:WUR:MS=0
    mysgw: TSM:INIT:TSP OK
    mysgw: TSM:INIT:GW MODE
    mysgw: TSM:READY:ID=0,PAR=0,DIS=0
    mysgw: MCO:REG:NOT NEEDED
    mysgw: Listening for connections on 0.0.0.0:5003
    mysgw: MCO:BGN:STP
    mysgw: MCO:BGN:INIT OK,TSP=1
    mysgw: New connection from 192.168.11.31
    mysgw: Client 0 connected
    mysgw: Client 0: 0;0;3;0;2;
    mysgw: Client 0: 0;0;3;0;18;PING
    mysgw: Client 0: 0;0;3;0;2;Get Version
    mysgw: TSF:MSG:READ,255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
    mysgw: TSF:MSG:BC
    mysgw: TSF:MSG:FPAR REQ,ID=255
    mysgw: TSF:PNG:SEND,TO=0
    mysgw: TSF:CKU:OK
    mysgw: TSF:MSG:GWL OK
    mysgw: TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=OK:0
    mysgw: TSF:MSG:READ,255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
    mysgw: TSF:MSG:BC
    mysgw: TSF:MSG:FPAR REQ,ID=255
    mysgw: TSF:CKU:OK,FCTRL
    mysgw: TSF:MSG:GWL OK
    mysgw: TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=OK:0
    mysgw: TSF:MSG:READ,255-255-0,s=255,c=3,t=3,pt=0,l=0,sg=0:
    mysgw: Client 0: 255;255;3;0;4;1
    mysgw: TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=4,pt=0,l=1,sg=0,ft=0,st=OK:1
    mysgw: Client 0: 0;0;3;0;18;PING
    mysgw: TSF:MSG:READ,255-255-0,s=255,c=3,t=3,pt=0,l=0,sg=0:
    mysgw: Client 0: 255;255;3;0;4;1
    mysgw: TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=4,pt=0,l=1,sg=0,ft=0,st=OK:1
    mysgw: Client 0: 0;0;3;0;18;PING
    mysgw: TSF:MSG:READ,255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
    mysgw: TSF:MSG:BC
    mysgw: TSF:MSG:FPAR REQ,ID=255
    mysgw: TSF:PNG:SEND,TO=0
    mysgw: TSF:CKU:OK
    mysgw: TSF:MSG:GWL OK
    mysgw: TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=OK:0
    mysgw: TSF:MSG:READ,255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
    mysgw: TSF:MSG:BC
    mysgw: TSF:MSG:FPAR REQ,ID=255
    mysgw: TSF:CKU:OK,FCTRL
    mysgw: TSF:MSG:GWL OK
    mysgw: TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=OK:0
    mysgw: TSF:MSG:READ,255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
    mysgw: TSF:MSG:BC
    mysgw: TSF:MSG:FPAR REQ,ID=255
    mysgw: TSF:CKU:OK,FCTRL
    mysgw: TSF:MSG:GWL OK
    mysgw: TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=OK:0
    mysgw: TSF:MSG:READ,255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
    mysgw: TSF:MSG:BC
    mysgw: TSF:MSG:FPAR REQ,ID=255
    mysgw: TSF:CKU:OK,FCTRL
    mysgw: TSF:MSG:GWL OK
    mysgw: TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=OK:0
    mysgw: Client 0: 0;0;3;0;18;PING
    mysgw: Client 0: 0;0;3;0;18;PING
    mysgw: TSF:MSG:READ,255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
    mysgw: TSF:MSG:BC
    mysgw: TSF:MSG:FPAR REQ,ID=255
    mysgw: TSF:PNG:SEND,TO=0
    mysgw: TSF:CKU:OK
    mysgw: TSF:MSG:GWL OK
    mysgw: TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=OK:0
    mysgw: TSF:MSG:READ,255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
    mysgw: TSF:MSG:BC
    mysgw: TSF:MSG:FPAR REQ,ID=255
    mysgw: TSF:CKU:OK,FCTRL
    mysgw: TSF:MSG:GWL OK
    

    Am I missing a step? I am running "sudo mysgw -d" on the RPI, followed by "sudo service domocoticz.sh restart", then pushing the MotionSensor example to my Pro Mini.

    Thanks again for everyone's help!


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