Febris CO2 Quick Start Guide

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Table of Contents

Getting Started
NFC Configuration and Location of the NFC Tag
LoRaWAN® Payload Decoder Febris Series

1. Getting Started

Caution

Please note that using knives or other sharp objects may damage the housing or the electronics .

Open the sensor at the tab provided for this purpose (marked on the bottom edge in the illustration). If necessary, carefully use a sharp object.

Figure 1. Opening the sensor housing
Now insert the battery cells. To achieve the specified run times and performance, only the following primary cells may be used :
1. For LoRaWAN® and mioty® sensors:
  - Energizer® Ultimate Lithium AA
  - VARTA ULTRA LITHIUM Mignon AA
2. For cellular sensors (NB-IoT):
  - Energizer® Ultimate Lithium AA
  - VARTA ULTRA LITHIUM Mignon AA

Four cells are required per sensor.

The sensor is now open. If you have an NB-IoT sensor and want to use your own SIM card, insert it now.

Figure 4. Position of the SIM card holder

Once the sensor is open, flip the switch to start the device. After flipping the switch, the sensor starts up. The three LEDs on the front flash, and a sequence of beeps is heard. The sensor then performs a measurement. The LED indicator displays the result.

Figure 6. LED light display showing the measurement result

2. NFC Configuration and Location of the NFC Tag

Configuration is performed using an NFC app. This requires a smartphone. The app can be downloaded from the respective app stores Search for "Sentinum LinQs" and install the LinQs app.

Figure 7. Downloading the Sentinum LinQs app
First, locate the NFC tag on the sensor, and then the NFC reader on your smartphone. The position of the NFC tag is shown in the following figure.

Figure 8. Position of the NFC tag on the sensor

3. LoRaWAN® Payload Decoder Febris Series

Note

The following decoder can be used to decode the payloads of the Febris series in LoRaWAN® network servers such as The Things Stack .

function decodeUplink(input) {

    var decoded = {};
    var bytes = input.bytes;

    if (input.fPort == 1) {//TELEMETRY

        //decode header
        decoded.base_id = bytes[0] >> 4;
        decoded.major_version = bytes[0] & 0x0F;
        decoded.minor_version = bytes[1] >> 4;
        decoded.product_version = bytes[1] & 0x0F;
        decoded.up_cnt = bytes[2];
        decoded.battery_voltage = ((bytes[3] << 8) | bytes[4]) / 1000.0;
        decoded.internal_temperature = ((bytes[5] << 8) | bytes[6]) / 10 - 100;
        decoded.networkBaseType = 'lorawan';
        decoded.networkSubType = 'tti';
        
        var it = 7;
        
        if(decoded.minor_version >= 3){
            it = 7;
        
            //Luftfeuchte ist bei allen Varianten enthalten
            decoded.humidity = bytes[it++];
    
            if (decoded.product_version & 0x01) { // Co2 und Druck sind enthalten wenn subversion bit0 = 1, andernfalls 0
                decoded.pressure = (bytes[it++] << 8 | bytes[it++]);
                decoded.co2_ppm = (bytes[it++] << 8 | bytes[it++]);
            } else {
                it += 4;//Werte sind 0  aus kompatibilitäts Gründen, daher überspringen
            }
    
            decoded.alarm = bytes[it++];//Alarm-Level, entspricht grün, gelb, rot
    
            //FIFO Werte wegwerfen (1 byte fifo size, 1 byte period, 7 bytes pro fifo eintrag)
            it += 2 + bytes[it] * 7;
    
            decoded.dew_point = ((bytes[it++] << 8) | bytes[it++]) / 10 - 100;
            
            // Wandtemperatur und Feuchte enthalten wenn subversion bit 2 = 1
            if (decoded.product_version & 0x04) {
                decoded.wall_temperature = ((bytes[it++] << 8) | bytes[it++]) / 10 - 100;
                decoded.therm_temperature = ((bytes[it++] << 8) | bytes[it++]) / 10 - 100;
                decoded.wall_humidity = bytes[it++];
            }
    
        }else{
            it = 7;
        
            //Luftfeuchte ist bei allen Varianten enthalten
            decoded.humidity = bytes[it++];
    
            if (decoded.product_version & 0x01) { // Co2 und Druck sind enthalten wenn subversion bit0 = 1, andernfalls 0
                decoded.pressure = (bytes[it++] << 8 | bytes[it++]);
                decoded.co2_ppm = (bytes[it++] << 8 | bytes[it++]);
            } else {
                it += 4;//Werte sind 0  aus kompatibilitäts Gründen, daher überspringen
            }
    
            decoded.alarm = bytes[it++];//Alarm-Level, entspricht grün, gelb, rot
    
            //FIFO Werte wegwerfen (1 byte fifo size, 1 byte period, 7 bytes pro fifo eintrag)
            it += 2 + bytes[it] * 7;
    
            //Taupunkt seit minor version 2 bei alle Varianten enthalten (ausnahme früher versionen subversion 2, daher byte prüfen)
            if (decoded.minor_version >= 2 && bytes[it] ) {
              
                decoded.dew_point = bytes[it++] - 100;
            }
            
            // Wandtemperatur und Feuchte enthalten wenn subversion bit 2 = 1
            if (decoded.product_version & 0x04) {
                decoded.wall_temperature = bytes[it++] - 100;
                decoded.therm_temperature = bytes[it++] - 100;
                decoded.wall_humidity = bytes[it++];
    
            }
    
    
        }
    }

    return {
        data: decoded,
        warnings: [],
        errors: []
    };

}

Febris CO2 Quick Start Guide

Are you looking for the Febris CO2 Quick Start Guide?

1. Getting Started

2. NFC Configuration and Location of the NFC Tag

3. LoRaWAN® Payload Decoder Febris Series