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    iancu

    @iancu

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    Location Timisoara

    iancu Follow

    Best posts made by iancu

    • RE: What did you build today (Pictures) ?

      @sundberg84 Nice, I had hanging issues with Domoticz in the past, until I decided to switch to Home Assistant. Best decision ever.

      posted in General Discussion
      iancu
      iancu
    • RE: NodeManager Relay in Homeassistant

      @Michał-Szura I had problems with relay and HA too. The best solution was to save the state of the relay in the EEPROM and to recall the value after a defined amount of time and send it to HA in loop(). This way you do not have to restart the relay node everytime you restart HA.

      posted in Home Assistant
      iancu
      iancu
    • RE: hi guys can anyone suggest any working controller this present days for this project thank you in advance

      I have tried Domoticz, Mozilla WebThings and Home Assistant. So far the best is Home Assistant, it has many integrations and a nice UI. If you want to be able to access it outsite your network I recommend ZeroTier (had many issues trying thru the router).

      posted in My Project
      iancu
      iancu

    Latest posts made by iancu

    • RE: Raspberry PI killing memory cards

      Thank you all for the advice! I will try first with log2ram, but for long term I want to install an SSD.

      A nice week to all!

      posted in General Discussion
      iancu
      iancu
    • RE: Raspberry PI killing memory cards

      @skywatch i have the original charger. Does it matter if the SSD is external type?

      posted in General Discussion
      iancu
      iancu
    • RE: Raspberry PI killing memory cards

      @Yveaux for how long do you use it?

      posted in General Discussion
      iancu
      iancu
    • Raspberry PI killing memory cards

      Hi,

      Yesterday my controller (HA) went down, after some debugging it seems that there is a problem with the memory card. Then I remembered a colleague which had similar issues but with Domoticz. My Raspberry worked for about 1 year without issues. Do you guys have the same problem? I am thinking to switch to a device (for HA) that supports different types of memory (like this or this).

      Cheers!

      posted in General Discussion
      iancu
      iancu
    • RE: (Solved) S_Multimeter in HomeAssistant

      Here is some code I use with NRF24 for a temperature sensor . So far works great with lastest HA version.

      // Enable debug prints to serial monitor
      //#define MY_DEBUG
      
      #define MY_RADIO_NRF24
      #define MY_NODE_ID 10
      #define DEBUG 0
      #define BATTERY_SENSOR 1
      
      #include <MySensors.h>
      
      #define TH1_CHILD_ID 11
      #define VOLTAGE_CHILD_ID 12
      #define TH_PIN 3
      
      int _nominal_resistor = 4700;
      int _nominal_temperature = 25;
      int _b_coefficient = 3950;
      int _series_resistor = 4877;
      int _pin = 0;
      
      float BatteryMin = 2.4;
      float BatteryMax = 3.0;
      
      MyMessage msgTemp(TH1_CHILD_ID, V_TEMP);
      MyMessage msgVoltage(VOLTAGE_CHILD_ID, V_VOLTAGE);
      
      void setup()
      {
        //Serial.begin(115200);
      }
      
      void presentation()
      {
        // Send the sketch version information to the gateway and Controller
        sendSketchInfo("Temp battery", "1.0");
        present(TH1_CHILD_ID, S_TEMP, "Temp");
        present(VOLTAGE_CHILD_ID, S_MULTIMETER, "Batt");
      }
      
      void loop()
      {
        tempReport();
        batteryReport();
        sleep(180000);
      }
      
      // Measure VCC
      float getVcc() {
      #ifndef MY_GATEWAY_ESP8266
        // Measure Vcc against 1.1V Vref
      #if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
        ADMUX = (_BV(REFS0) | _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1));
      #elif defined (__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
        ADMUX = (_BV(MUX5) | _BV(MUX0));
      #elif defined (__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
        ADMUX = (_BV(MUX3) | _BV(MUX2));
      #else
        ADMUX = (_BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1));
      #endif
        // Vref settle
        wait(70);
        // Do conversion
        ADCSRA |= _BV(ADSC);
        while (bit_is_set(ADCSRA, ADSC)) {};
        // return Vcc in mV
        return (float)((1125300UL) / ADC) / 1000;
      #else
        return (float)0;
      #endif
      }
      
      // Send a battery level report to the controller
      void batteryReport() {
        // measure the board vcc
        float volt = getVcc();
        // calculate the percentage
        int percentage = ((volt - BatteryMin) / (BatteryMax - BatteryMin)) * 100;
        if (percentage > 100) percentage = 100;
        if (percentage < 0) percentage = 0;
      #if DEBUG == 1
        Serial.print(F("BATT V="));
        Serial.print(volt);
        Serial.print(F(" P="));
        Serial.println(percentage);
      #endif
      #if BATTERY_SENSOR == 1
        // report battery voltage
        send(msgVoltage.set(volt, 3));
      #endif
        // report battery level percentage
        sendBatteryLevel(percentage);
      }
      
      void tempReport()
      {
        // set TH pin in output mode
        pinMode(TH_PIN, OUTPUT);
        // set TH_PIN HIGH
        digitalWrite(TH_PIN, HIGH);
        wait(1);
        // read the voltage across the thermistor
        float adc = analogRead(_pin);
        // set TH_PIN LOW
        digitalWrite(TH_PIN, LOW);
        // calculate the temperature
        float reading = (1023 / adc)  - 1;
        reading = _series_resistor / reading;
        float temperature;
        temperature = reading / _nominal_resistor;     // (R/Ro)
        temperature = log(temperature);                  // ln(R/Ro)
        temperature /= _b_coefficient;                   // 1/B * ln(R/Ro)
        temperature += 1.0 / (_nominal_temperature + 273.15); // + (1/To)
        temperature = 1.0 / temperature;                 // Invert
        temperature -= 273.15;                         // convert to C
      #if DEBUG == 1
        Serial.print(F("THER I="));
        Serial.print(TH1_CHILD_ID);
        Serial.print(F(" V="));
        Serial.print(adc);
        Serial.print(F(" T="));
        Serial.println(temperature);
      #endif
        send(msgTemp.set(temperature, 1));
      }
      
      posted in Home Assistant
      iancu
      iancu
    • RE: Battery powered latching relay node

      @mtiutiu Thank you for the information! I will give it a try with the bluetooth module.

      I use Home Assistant as the controller and store the relay state in the EEPROM (according to the relay example) and on top of that I have configured the node to send updates of the state (taken form EEPROM) to home assistant periodically.

      posted in Troubleshooting
      iancu
      iancu
    • RE: NodeManager Relay in Homeassistant

      @Michał-Szura I had problems with relay and HA too. The best solution was to save the state of the relay in the EEPROM and to recall the value after a defined amount of time and send it to HA in loop(). This way you do not have to restart the relay node everytime you restart HA.

      posted in Home Assistant
      iancu
      iancu
    • RE: Battery powered latching relay node

      @mfalkvidd Thanks for the info! Then my idea is not worth the trouble (would have to change the batteries too often).
      A good day to everyone!

      posted in Troubleshooting
      iancu
      iancu
    • RE: Battery powered latching relay node

      @Grubstake that sleep time is too much, even 2 seconds delay is not good for me. But, last night I got an idea, so I will supply the whole node with 3V. I was thinking to supply the NRF24 directly from the battery and use it as an interrupt when the gateway will transmit. According to some google-ing the stand-by current of the NRF24 is pretty low. Could this work? Do you know if the IRQ pin is used for something in mysensors?

      PS: @Yveaux while loop ideea did not work as expected

      posted in Troubleshooting
      iancu
      iancu
    • RE: Battery powered latching relay node

      @Yveaux thank you for the help! I managed to make it work. Now need to see how to optimize it to be able to run as long as possible from the batteries. I was thinking to use a while loop to check V_STATUS, send command to relay and then go to sleep.

      posted in Troubleshooting
      iancu
      iancu