Gateway type



  • Hello,

    I need some advice on gateways. I have a RPi 3 and Arduino Pro minis. They will communicate with NRF24s. I will use arduinos as sensor and actuator. There is no sensor or actuator at RPi for now. Rpi has internet access via wifi, Arduinos don't. I installed Home Assistant manually in a virtual environment at RPi as described at their website.

    My purpose is to automate my home using every possibility like Google Assistant, Apple Home Kit, Home Assistant app from inside or outside of home network.

    Because I am a beginner, I need some help to choose gateway type and configure RPi.


  • Hardware Contributor

    Serial Gateway is the easiest I guess but you can use every gateway that Home Assistant supports. Mainly depends on the physical position of the gateway I guess (if you can use serial or need a networked one).


  • Mod

    If you can, I'd connect a nrf24 module directly to the rpi and run mysensors ethernet gateway then use the other nrf24 on the pro mini



  • @LastSamurai said in Gateway type:

    s. Mainly depends on the physical position of the gateway I guess

    i tried to setup ethernet gateway. But i got failure message on both arduino and RPi. Is there any mistake on codes? A few days ago I tested NRF24s and were working.

    RPi Debug

    mysgw: Starting gateway...
    mysgw: Protocol version - 2.1.1
    mysgw: MCO:BGN:INIT GW,CP=RNNG---,VER=2.1.1
    mysgw: TSM:INIT
    mysgw: TSF:WUR:MS=0
    mysgw: !TSM:INIT:TSP FAIL
    mysgw: TSM:FAIL:CNT=1
    mysgw: TSM:FAIL:PDT
    mysgw: TSM:FAIL:RE-INIT
    mysgw: TSM:INIT
    mysgw: !TSM:INIT:TSP FAIL
    mysgw: TSM:FAIL:CNT=2
    

    Arduino Debug

    0 MCO:BGN:INIT NODE,CP=RNNNA--,VER=2.1.1
    3 TSM:INIT
    4 TSF:WUR:MS=0
    11 TSM:INIT:TSP OK
    13 TSM:FPAR
    15 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    2022 !TSM:FPAR:NO REPLY
    2024 TSM:FPAR
    2026 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    4034 !TSM:FPAR:NO REPLY
    4036 TSM:FPAR
    4038 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    6046 !TSM:FPAR:NO REPLY
    6048 TSM:FPAR
    6050 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
    8058 !TSM:FPAR:FAIL
    8059 TSM:FAIL:CNT=1
    8061 TSM:FAIL:PDT
    

    Rpi Gateway Codes

    git clone https://github.com/mysensors/MySensors.git --branch master
    cd MySensors
    ./configure --my-transport=nrf24 --my-gateway=ethernet --my-port=5003 --my-gateway=ethernet --my-controller-ip-address=192.168.1.20 --my-rf24-ce-pin=22 --my-rf24-cs-pin=24 --my-leds-err-pin=7
    make
    sudo ./bin/mysgw -d
    

    Home Assistant - configuration.yaml

    mysensors:
      gateways:
        - device: '192.168.1.20'
          persistence_file: 'path/mysensors.json'
          baud_rate: 115200
          tcp_port: 5003
      optimistic: false
      persistence: true
      version: '2.1.1'
    

    arduino code

    /**
     * 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
    
    // Enable and select radio type attached 
    #define MY_RADIO_NRF24
    
     
    #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 = 60000;
    
    // 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 0
    #define CHILD_ID_TEMP 1
    
    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); 
    }
    

  • Mod

    the rpi gateway is not able to communicate with the nrf24. Try to use the development branch and try without
    --my-controller-ip-address=192.168.1.20 --my-rf24-ce-pin=22 --my-rf24-cs-pin=24 --my-leds-err-pin=7 (I didn't use them and it is working fine)
    and follow the instruction on how to connect the radio in the build section.



  • if it is not able, how will rpi get the data?

    I was planning to communicate over NRF24L01.


  • Mod

    I meant the error you are getting from rpi console means there is a communication problem between RPI and nrf24. Also in the arduino node it's better you set a node id for the moment.



  • aah sorry. will try to set a node id on arduino and then change gateway config as below.

    ./configure --my-transport=nrf24 --my-gateway=ethernet --my-port=5003



  • i thinked it worked with ./configure --my-transport=nrf24
    i will try to configure home assistant tomorrow thanks..


 

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