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User manual – LoRaWAN CO2 sensor 1. Introduction .......................................................................................................... 3 2. Features ............................................................................................................... 4 3. Specifications ....................................................................................................... 5 4. Aura-CO2 at a glance ........................................................................
User manual – LoRaWAN CO2 sensor 1. Introduction Aura-CO2 is a five+ year battery-operated connected CO2 monitor measuring in real time carbon dioxide concentration, temperature, pressure and relative humidity. Data is displayed on a large e-Paper screen and on the online dashboard when AuraCO2 is connected to the LoRaWAN network. End users can customize sound & visual alarms through the eLichens Aura smartphone application.
User manual – LoRaWAN CO2 sensor 2. Features Product: • CO2, ambiant temperature, relative humidity and atmoshperic pressure sensors. • ePaper screen for a clear display of relevant information. • Configurable visual and audible CO2 level alarms. • LoRaWAN & Bluetooth Low Energy (BLE) connectivities. • Compact size, wall mounted and battery powered for an easy installation. • Maintenance free. • More than 5 years run time without changing batteries.
User manual – LoRaWAN CO2 sensor 3. Specifications Operating conditions Environment Indoor Temperature range Humidity range 0-50°C (1) 0-85%RH Lifetime (1) >10 years Non-condensing Power supply Battery type Battery Lifetime (2) 2 x 3.6V AA Lithium Batteries (2) >5 years Contact eLichens for replacement batteries. Mechanical Dimensions 92 x 60 x 30 mm3 Wall-mounted (anti-theft system option) Stands on a flat surface table 73mm (2.
User manual – LoRaWAN CO2 sensor Humidity sensor ±3% RH Absolute Accuracy Output Resolution 1% RH Pressure sensor ±1 hPa Absolute Accuracy Output Resolution 1 hPa LoRaWAN Protocol version (3) LoRaWAN 1.0.2 Device class Features Regions Report interval (4) Payload (3) (4) A OTAA, ADR, Adaptative Channel Setup US (902-928 MHz) EU (863-870 MHz) AS (923 MHz) Upload 4 measures every hour = one measure every 15 minutes Status, CO2, Temperature, Humidity, Pressure, Battery Disable by default.
User manual – LoRaWAN CO2 sensor Available services over Bluetooth Low Energy (BLE) Protocol version Services BLE V4.
User manual – LoRaWAN CO2 sensor LED Blinking Frequency By default 1 minute above alarm threshold 5 minutes below alarm threshold Custom(5) (5) 1 .. 120 min Please note change LED On time will impact AURA autonomy Alarm Threshold By default Custom 1000 ppm 600 .. 2000 ppm This document is the property of eLichens SA and may not be reproduced or communicated without its permission.
User manual – LoRaWAN CO2 sensor 4. Aura-CO2 at a glance Two AA Lithium batteries provide more than 5 years of autonomy to Aura-CO2. The batteries are already installed, a short press on the user button and the device will start. Air quality data will automatically be collected in the room and sent through the LoRaWAN network. Measures are updated every minute on screen. User can press the button to refresh screen displayed measures.
User manual – LoRaWAN CO2 sensor 5. Smiley Mode Changing mode Click User must press 3 times the button shortly (<1 second) to swap from one mode to another Please note in this picture CO2 alarm threshold is set to 1000 ppm- changeable by user 6. Power Saving Mode Power saving mode allows AURA to increase battery lifetime. One can activate/deactivate it within the mobile app.
User manual – LoRaWAN CO2 sensor 7. Configuration Configuration of the product can be performed thanks to a mobile application available on Android and iOS. The links are hereafter, or it can be found by using the keywords “eLichens aura”. https://apps.apple.com/us/a pp/aura-co2/id1565190899 https://play.google.com/store/apps /details?id=com.elichens.auraco2 &gl=US Note: Smartphone Bluetooth must be ON.
User manual – LoRaWAN CO2 sensor To use the mobile application, an account needs to be created, or an existing eLichens account can be used. When choosing a password, the following rules have to be followed: At least 8 characters At least 1 lower case letter [a-z] At least 1 upper case letter [A-Z] At least 1 number [0-9] At least 1 special character [$@$!%*#?&,;] The account can be created directly on eLichens’ Cloud too: https://lab.elichens.
User manual – LoRaWAN CO2 sensor (1) Station ID will display in the browse menu, (2) Station pairing is performed (it can take up to 10 seconds), (3) The settings page opens, allowing the user to configure the station. This document is the property of eLichens SA and may not be reproduced or communicated without its permission.
User manual – LoRaWAN CO2 sensor 8. Station settings There are several ways to configure AURA CO2 presets. Either user can use existing settings, or he can custom his configuration. This document is the property of eLichens SA and may not be reproduced or communicated without its permission.
User manual – LoRaWAN CO2 sensor Default Configuration : • • • • Sleep mode is disabled LoRaWAN uplinks frequency is set to 60 minutes LEDs are set as follows: o Green: blinks 0,1 second every 5 minutes o Orange: blinks 0,1 second every 5 minutes o Red: blinks 0,1 second every minute Alarm threshold is set to 1000 ppm Applications : • Air quality monitoring in offices, meeting room, shops, homes … School Configuration : • • • • Sleep mode is activated o Aura won’t display neither CO2 concentration
User manual – LoRaWAN CO2 sensor Advanced Configuration 1. LoRaWAN configuration view : a. Activate / Deactivate LoRaWAN reporting (1) b. Get DevEUI c. Change LoRaWAN uplinks frequency 2. CO2 alarm a. Configure alarm threshold b. Activate / deactivate buzzer 1 2 3 3. CO2 calibration a. Activate / deactivate and set automatic calibration b. Trig a manual calibration c. Restore factory calibration settings 4. Configure hours and days when Aura goes to sleep mode (see §Sleep Mode) 4 5 6 7 8 5.
User manual – LoRaWAN CO2 sensor Sleep mode 1. Start Hour: Hour when Aura will go to sleep mode 2. End Hour: Hour when Aura will go out of sleep mode 3. Start Minute: Minute when Aura goes to sleep mode, following start hour 4. End Minute: Minute when Aura goes out of sleep mode, following end hour. 5. Full Days: Aura goes to sleep mode the whole day, from 0 AM to 11:59 PM 6.
User manual – LoRaWAN CO2 sensor CO2 calibration 8.6.1. Automatic Calibration Automatic calibration is based on CO2 minimum values measured within a week (by default, configurable by user). It is strongly advised to let the automatic calibration process effective with a one-week frequency. 8.6.2. Manual Calibration Manual Calibration first need the user to let AURA station close to a fresh air, where CO2 concentration is closed to CO2 Atmosphere baseline concentration, around 400 ppm.
User manual – LoRaWAN CO2 sensor Once one of the three conditions is met, user can trig manual calibration within the mobile App. 8.6.3. Restore Factory Calibration User can restore factory calibration settings by touching this button. This document is the property of eLichens SA and may not be reproduced or communicated without its permission.
User manual – LoRaWAN CO2 sensor 9. Station settings The main screen is organized as follow: Navigation between screen can be performed as follow: This document is the property of eLichens SA and may not be reproduced or communicated without its permission.
User manual – LoRaWAN CO2 sensor 10. Station Location It is possible to geolocate AURA station by giving its location within the mobile App. User needs to activate location on his smartphone, then do the following: AURA CO2 location allows to: • Find it on a map within web Dashboards and mobile App Get an Outdoor Air Quality Index related to the station location • Example : • Station is located in Grenoble, France Outdoor Air Quality index is displayed on app and dashboards.
User manual – LoRaWAN CO2 sensor 11. ICONE Index Indoor air containment is based on two terms: • • Available space on the room regarding its occupation Room air renewal (or room ventilation). Indoor air containment is CO2 measuring. ICONE index (also called containment index) gives an information on indoor air quality/ It is based on CO2 values measured during working days, from 9 AM to 5 PM, and its value is included between 0 and 5: ICONE Index Raw Values Containment Nature ICONE Index < 0.
User manual – LoRaWAN CO2 sensor ICONE Index Raw Values ICONE Index kept Values ICONE Index < 0.5 0 0 .5< ICONE Index < 1.5 1 1.5 < ICONE Index < 2.5 2 2.5 < ICONE Index < 3.5 3 3.5 < ICONE Index < 4.5 4 ICONE >= 4.5 5 This document is the property of eLichens SA and may not be reproduced or communicated without its permission.
User manual – LoRaWAN CO2 sensor 12. Station Fixation The station is fixed either with 2 screws or with an optional anti-theft adapter. Standard Fixation This document is the property of eLichens SA and may not be reproduced or communicated without its permission.
User manual – LoRaWAN CO2 sensor Anti-theft Fixation (optional) This document is the property of eLichens SA and may not be reproduced or communicated without its permission.
User manual – LoRaWAN CO2 sensor 13. Maintenance No maintenance processes are needed, AURA CO2 station was designed to work more than 10 years without any maintenance or calibration process, except for battery replacement. This replacement must be done by formed employee and batteries must be those specified by supplier. Please contact us for exact references. 14. LoRaWAN Frames Uplink Frames Sent every hour on port 1 without acknowledge.
User manual – LoRaWAN CO2 sensor 15. Web data access All the collected data can be accessed through a dedicated web interface too, available here: https://lab.elichens.com/ All the connected stations are accessible through the left column. The buttons on the bottom right side of the interface are used to change the history length and a click on “Advanced view” brings the user to an advanced dashboard where data can be exported in a .CSV file.
User manual – LoRaWAN CO2 sensor 16. Upgrade Firmware To have the latest Firmware, one should connect a smartphone with AURA app to the concerned station. Then choose “Upgrade” menu: A warning message pop up on the screen warning about not interrupting update procedure (by disconnecting Bluetooth, rebooting phone, low battery shutting down, closing app …). Once ready, select “Start”. This document is the property of eLichens SA and may not be reproduced or communicated without its permission.
User manual – LoRaWAN CO2 sensor The upgrade process will go on. Once done, click on the button labelled “Upgrade done”. User shall not interrupt Upgrade Procedure This document is the property of eLichens SA and may not be reproduced or communicated without its permission.
User manual – LoRaWAN CO2 sensor 17. Data Update To update the last 21 days of AURA CO2 data, please connect a smartphone with AURA app to the concerned station. Then choose “Upload data” menu: A warning message pop up on the screen warning about not interrupting update procedure (by disconnecting Bluetooth, rebooting phone, low battery shutting down, closing app …). Once ready, select “Start”.
