Adding local sensor to NodeMCU gateway



  • Hello,

    Is it possible to connect local sensors to the gateway itself? Because the gateway is an esp8266 I can place it anywhere I want to (if you have enough wifi signal).
    So the gateway could serve for 2 purposes instead of only a gateway.

    If its possible can someone help me to code this sensor into the gateway?

    Regards,
    Wodian


  • Mod

    @Wodian yes

    Just add the sensor code for your sensors to the GatewayESP example.

    You can find more information here: https://forum.mysensors.org/topic/4066/ethernet-gateway-working-as-sensor-node-it-s-possible/2



  • Have been a while and trying to add code to my gateway without succes.
    Ive been trying to add a light sensor to my gateway but it isnt recognized by Mynodes controller. In the serial monitor I cannot see anything logging about a sensor.

    This is what Ive been using so far:

    /**
     * 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
     * Contribution by a-lurker and Anticimex,
     * Contribution by Norbert Truchsess <norbert.truchsess@t-online.de>
     * Contribution by Ivo Pullens (ESP8266 support)
     *
     * DESCRIPTION
     * The EthernetGateway sends data received from sensors to the WiFi link.
     * The gateway also accepts input on ethernet interface, which is then sent out to the radio network.
     *
     * VERA CONFIGURATION:
     * Enter "ip-number:port" in the ip-field of the Arduino GW device. This will temporarily override any serial configuration for the Vera plugin.
     * E.g. If you want to use the defualt values in this sketch enter: 192.168.178.66:5003
     *
     * LED purposes:
     * - To use the feature, uncomment any of the MY_DEFAULT_xx_LED_PINs in your sketch, only the LEDs that is defined is used.
     * - RX (green) - blink fast on radio message recieved. In inclusion mode will blink fast only on presentation recieved
     * - TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly
     * - ERR (red) - fast blink on error during transmission error or recieve crc error
     *
     * See http://www.mysensors.org/build/esp8266_gateway for wiring instructions.
     * nRF24L01+  ESP8266
     * VCC        VCC
     * CE         GPIO4
     * CSN/CS     GPIO15
     * SCK        GPIO14
     * MISO       GPIO12
     * MOSI       GPIO13
     * GND        GND
     *
     * Not all ESP8266 modules have all pins available on their external interface.
     * This code has been tested on an ESP-12 module.
     * The ESP8266 requires a certain pin configuration to download code, and another one to run code:
     * - Connect REST (reset) via 10K pullup resistor to VCC, and via switch to GND ('reset switch')
     * - Connect GPIO15 via 10K pulldown resistor to GND
     * - Connect CH_PD via 10K resistor to VCC
     * - Connect GPIO2 via 10K resistor to VCC
     * - Connect GPIO0 via 10K resistor to VCC, and via switch to GND ('bootload switch')
     *
      * Inclusion mode button:
     * - Connect GPIO5 via switch to GND ('inclusion switch')
     *
     * Hardware SHA204 signing is currently not supported!
     *
     * Make sure to fill in your ssid and WiFi password below for ssid & pass.
     */
    
    
    // Enable debug prints to serial monitor
    #define MY_DEBUG
    
    // Use a bit lower baudrate for serial prints on ESP8266 than default in MyConfig.h
    #define MY_BAUD_RATE 9600
    
    // Enables and select radio type (if attached)
    #define MY_RADIO_NRF24
    //#define MY_RADIO_RFM69
    
    #define MY_GATEWAY_ESP8266
    
    #define MY_ESP8266_SSID "*************"
    #define MY_ESP8266_PASSWORD "*******"
    
    // Enable UDP communication
    //#define MY_USE_UDP
    
    // Set the hostname for the WiFi Client. This is the hostname
    // it will pass to the DHCP server if not static.
    // #define MY_ESP8266_HOSTNAME "sensor-gateway"
    
    // Enable MY_IP_ADDRESS here if you want a static ip address (no DHCP)
    //#define MY_IP_ADDRESS 192,168,178,87
    
    // If using static ip you need to define Gateway and Subnet address as well
    #define MY_IP_GATEWAY_ADDRESS 192,168,178,1
    #define MY_IP_SUBNET_ADDRESS 255,255,255,0
    
    // The port to keep open on node server mode
    #define MY_PORT 5003
    
    // How many clients should be able to connect to this gateway (default 1)
    #define MY_GATEWAY_MAX_CLIENTS 2
    
    // Controller ip address. Enables client mode (default is "server" mode).
    // Also enable this if MY_USE_UDP is used and you want sensor data sent somewhere.
    #define MY_CONTROLLER_IP_ADDRESS 192,168,0,25
    
    // Enable inclusion mode
    #define MY_INCLUSION_MODE_FEATURE
    
    // Enable Inclusion mode button on gateway
    // #define MY_INCLUSION_BUTTON_FEATURE
    // Set inclusion mode duration (in seconds)
    #define MY_INCLUSION_MODE_DURATION 60
    // Digital pin used for inclusion mode button
    #define MY_INCLUSION_MODE_BUTTON_PIN  3
    
    
    // Set blinking period
    // #define MY_DEFAULT_LED_BLINK_PERIOD 300
    
    // Flash leds on rx/tx/err
    // Led pins used if blinking feature is enabled above
    #define MY_DEFAULT_ERR_LED_PIN 2  // Error led pin
    #define MY_DEFAULT_RX_LED_PIN  2  // Receive led pin
    #define MY_DEFAULT_TX_LED_PIN  2  // the PCB, on board LED
    
    #if defined(MY_USE_UDP)
      #include <WiFiUDP.h>
    #else
      #include <ESP8266WiFi.h>
    #endif
    #include <MySensors.h>  
    
    #define CHILD_ID_LIGHT 0
    #define LIGHT_SENSOR_ANALOG_PIN 0
    
    unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
    
    MyMessage msg(CHILD_ID_LIGHT, V_LIGHT_LEVEL);
    int lastLightLevel;
    
    
    void presentation()  {
      // Send the sketch version information to the gateway and Controller
      sendSketchInfo("Light Sensor", "1.0");
    
      // Register all sensors to gateway (they will be created as child devices)
      present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);
    }
    
    void loop()      
    {     
      int16_t lightLevel = (1023-analogRead(LIGHT_SENSOR_ANALOG_PIN))/10.23; 
      Serial.println(lightLevel);
      if (lightLevel != lastLightLevel) {
          send(msg.set(lightLevel));
          lastLightLevel = lightLevel;
      }
      sleep(SLEEP_TIME);
    }
    
    

    Have been working all night to get this thing up and running.

    Any thoughts?


  • Contest Winner

    @Wodian I've remove your SSID and password from the sketch. You probably didn't want everybody to have those.



  • @TheoL
    Woops thanks



  • i'm having the same problem on seriagateway, even with dev. branch . my local sensor dont present on vera 3. Something it's not working as should on local gateway nodes. the not recent examples, just old examples before 2.0 released



  • @Tmaster Still havent found a solution for this. At the moment im busy with Home Assistant and using the esp8266 for mqtt communication so I dropped mysensors for now.



  • I've been searching for a solution and found one after trial and error. I think my biggest mistake was to use the printed pin numbers instead of the gpio numbers of the nodemcu when adding my temp sensor. My code looks like this, pin 5 is D1:

    /**
     * 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
     * Contribution by a-lurker and Anticimex,
     * Contribution by Norbert Truchsess <norbert.truchsess@t-online.de>
     * Contribution by Ivo Pullens (ESP8266 support)
     *
     * DESCRIPTION
     * The EthernetGateway sends data received from sensors to the WiFi link.
     * The gateway also accepts input on ethernet interface, which is then sent out to the radio network.
     *
     * VERA CONFIGURATION:
     * Enter "ip-number:port" in the ip-field of the Arduino GW device. This will temporarily override any serial configuration for the Vera plugin.
     * E.g. If you want to use the defualt values in this sketch enter: 192.168.178.66:5003
     *
     * LED purposes:
     * - To use the feature, uncomment any of the MY_DEFAULT_xx_LED_PINs in your sketch, only the LEDs that is defined is used.
     * - RX (green) - blink fast on radio message recieved. In inclusion mode will blink fast only on presentation recieved
     * - TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly
     * - ERR (red) - fast blink on error during transmission error or recieve crc error
     *
     * See http://www.mysensors.org/build/esp8266_gateway for wiring instructions.
     * nRF24L01+  ESP8266
     * VCC        VCC
     * CE         GPIO4
     * CSN/CS     GPIO15
     * SCK        GPIO14
     * MISO       GPIO12
     * MOSI       GPIO13
     * GND        GND
     *
     * Not all ESP8266 modules have all pins available on their external interface.
     * This code has been tested on an ESP-12 module.
     * The ESP8266 requires a certain pin configuration to download code, and another one to run code:
     * - Connect REST (reset) via 10K pullup resistor to VCC, and via switch to GND ('reset switch')
     * - Connect GPIO15 via 10K pulldown resistor to GND
     * - Connect CH_PD via 10K resistor to VCC
     * - Connect GPIO2 via 10K resistor to VCC
     * - Connect GPIO0 via 10K resistor to VCC, and via switch to GND ('bootload switch')
     *
      * Inclusion mode button:
     * - Connect GPIO5 via switch to GND ('inclusion switch')
     *
     * Hardware SHA204 signing is currently not supported!
     *
     * Make sure to fill in your ssid and WiFi password below for ssid & pass.
     */
    
    
    // Enable debug prints to serial monitor
    #define MY_DEBUG
    
    // Use a bit lower baudrate for serial prints on ESP8266 than default in MyConfig.h
    #define MY_BAUD_RATE 9600
    
    // Enables and select radio type (if attached)
    #define MY_RADIO_NRF24
    //#define MY_RADIO_RFM69
    
    #define MY_GATEWAY_ESP8266
    
    #define MY_ESP8266_SSID "********"
    #define MY_ESP8266_PASSWORD "*********"
    
    // Enable UDP communication
    //#define MY_USE_UDP
    
    // Set the hostname for the WiFi Client. This is the hostname
    // it will pass to the DHCP server if not static.
    // #define MY_ESP8266_HOSTNAME "sensor-gateway"
    
    // Enable MY_IP_ADDRESS here if you want a static ip address (no DHCP)
    //#define MY_IP_ADDRESS 192,168,178,87
    
    // If using static ip you need to define Gateway and Subnet address as well
    #define MY_IP_GATEWAY_ADDRESS 192,168,178,1
    #define MY_IP_SUBNET_ADDRESS 255,255,255,0
    
    // The port to keep open on node server mode
    #define MY_PORT 5003
    
    // How many clients should be able to connect to this gateway (default 1)
    #define MY_GATEWAY_MAX_CLIENTS 2
    
    // Controller ip address. Enables client mode (default is "server" mode).
    // Also enable this if MY_USE_UDP is used and you want sensor data sent somewhere.
    //#define MY_CONTROLLER_IP_ADDRESS 192, 168, 178, 68
    
    // Enable inclusion mode
    //#define MY_INCLUSION_MODE_FEATURE
    
    // Enable Inclusion mode button on gateway
    // #define MY_INCLUSION_BUTTON_FEATURE
    // Set inclusion mode duration (in seconds)
    #define MY_INCLUSION_MODE_DURATION 60
    // Digital pin used for inclusion mode button
    #define MY_INCLUSION_MODE_BUTTON_PIN  3
    
    
    // Set blinking period
    // #define MY_DEFAULT_LED_BLINK_PERIOD 300
    
    // Flash leds on rx/tx/err
    // Led pins used if blinking feature is enabled above
    #define MY_DEFAULT_ERR_LED_PIN 16  // Error led pin
    #define MY_DEFAULT_RX_LED_PIN  16  // Receive led pin
    #define MY_DEFAULT_TX_LED_PIN  16  // the PCB, on board LED
    
    #if defined(MY_USE_UDP)
    #include <WiFiUdp.h>
    #endif
    
    #include <ESP8266WiFi.h>
    
    #include <SPI.h>
    #include <MySensors.h>  
    #include <DallasTemperature.h>
    #include <OneWire.h>
    
    #define CHILD_ID_TEMP 1
    
    #define COMPARE_TEMP 1 // Send temperature only if changed? 1 = Yes 0 = No
    
    #define ONE_WIRE_BUS 5 // Pin where dallase sensor is connected 
    #define MAX_ATTACHED_DS18B20 16
    unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
    OneWire oneWire(ONE_WIRE_BUS); // Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
    DallasTemperature sensors(&oneWire); // Pass the oneWire reference to Dallas Temperature. 
    float lastTemperature[MAX_ATTACHED_DS18B20];
    int numSensors=0;
    bool receivedConfig = false;
    bool metric = true;
    // Initialize temperature message
    MyMessage msg(CHILD_ID_TEMP,V_TEMP);
    
    void before()
    {
      // Startup up the OneWire library
      sensors.begin();
    }
    
    
    void setup()
    {
      // requestTemperatures() will not block current thread
      sensors.setWaitForConversion(false);
    }
    
    void presentation()
    {
      // Send the sketch version information to the gateway and Controller
      sendSketchInfo("Temperature Sensor", "1.1");
    
      // Fetch the number of attached temperature sensors  
      numSensors = sensors.getDeviceCount();
    
      // Present all sensors to controller
      for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {   
         present(i, S_TEMP);
      }
    }
    
    
    void loop()
    {     
      // Fetch temperatures from Dallas sensors
      sensors.requestTemperatures();
    
      // query conversion time and sleep until conversion completed
      int16_t conversionTime = sensors.millisToWaitForConversion(sensors.getResolution());
      // sleep() call can be replaced by wait() call if node need to process incoming messages (or if node is repeater)
      sleep(conversionTime);
    
      // Read temperatures and send them to controller 
      for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {
     
        // Fetch and round temperature to one decimal
        float temperature = static_cast<float>(static_cast<int>((getControllerConfig().isMetric?sensors.getTempCByIndex(i):sensors.getTempFByIndex(i)) * 10.)) / 10.;
     
        // Only send data if temperature has changed and no error
        #if COMPARE_TEMP == 1
        if (lastTemperature[i] != temperature && temperature != -127.00 && temperature != 85.00) {
        #else
        if (temperature != -127.00 && temperature != 85.00) {
        #endif
     
          // Send in the new temperature
          send(msg.setSensor(i).set(temperature,1));
          // Save new temperatures for next compare
          lastTemperature[i]=temperature;
        }
      }
      sleep(SLEEP_TIME);
    }
    

    I know the thread was old, but I thought a solution would be worth telling 🙂
    Here is a sketch of the pins:
    alt text



  • o vera lite the problem is : if i add a new sensor and delete it , id stays there..somewere on vera. and next time device will not be find because it is already there. i have to increase node id number on arduino sketch (i don't know if auto id works).
    Anyone know why Vera don't really delete devices and kept te ID somewere?


  • Mod

    @Tmaster how would Vera know the device was deleted if the ID wasn't stored?



  • @mfalkvidd but then if i have 200 deleted devices .it ill kept everything? how to reset that?


  • Mod

    @Tmaster I don't know. Maybe ask Vera support?


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