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MCF-LW06DAVK/DAVPK Operating Manual

Important safety information

Read this manual before attempting to install the device! Failure to observe recommendations included in this manual may be dangerous or cause a violation of the law. The manufacturer will not be held responsible for any loss or damage resulting from not following the instructions of this operating manual.

  • Do not dismantle or modify in any way.
  • The device is not intended to be used as a reference sensor, and enginko Srl will not be held liable for any damage which may result from inaccurate readings.
  • Avoid mechanical stress
  • Do not use any detergent or alcohol to clean the device.

Disposal information for users

Pursuant to and in accordance with Article 14 of the Directive 2012/19/EU of the European Parliament on waste electrical and electronic equipment (WEEE), and pursuant to and in accordance with Article 20 of the Directive 2013/56/EU of the European Parliament on batteries and accumulators and waste batteries.

The barred symbol of the rubbish bin shown on the equipment indicates that, at the end of its useful life, the product must be collected separately from other waste.

For additional information and how to carry out disposal, please contact the certified disposal service providers.

1. Description

MCF-LW06DAVK/DAVPK is a LoRaWAN®communication system kit designed to be connected to Davis Vantage Pro2 Weather Station. The kit is designed to work with these Davis components:

  • ISS Davis Vantage Pro2 Groweather sensor suite 6820CM 6820CM or ISS Davis Vantage Pro2 sensor suite 6322CM 6322C
  • Cabled Weather Envoy®6316CEU6316CEU
  • WeatherLink® Serial-Port Data Logger 6510SER 6510SER
  • Solar box 66126612
  • UV sensor 6490(optional)6490

Further, the MCF-LW06DAVPK kit adds a PM measurement system to the existing Davis station.

2. Overview

Based on the different version, some sensors can be not present.

2.1 Technical data

enginko LoRaWAN® interface kit:

  • CPU Cortex M0+
  • EEProm 32Kb
  • Flash 64k
  • Encryption AES 128 bit
  • Class A LoRaWAN® 1.0.2 stack EU868, AS923, AU915, US915
  • Transmission band (EU version): 868 MHz
  • Transmission Power (EU version): 14dBm max
  • USB for IoT node setup, FW upgrade and data reading
  • PM sensor PM1\PM2.5 ±10%, PM10 ±30%

Power consumption:
- floor current: 500uA;
- 600mW for a duration of 2 seconds for every LoRaWAN transmission (worst case);
- 800uA as average with 1 message every 15 minutes, SF = 12;
- PM sensor additional average consumption: 1.8mA (1 measure every 15 minutes).

Davis Instruments:

  • Temperature range -40°C to +65°C ±0.3°C
  • Relative Humidity from 0% to 100% ±2%
  • Atmospheric pressure from 880 to 1080 hPa ±1hPa
  • Rain range 0 to 6553 mm ± 4%
  • Solar Radiation 0 to 1800W/mq ±5%
  • Wind Speed 0 to 114m/s
  • Wind Direction 0° to 360° ±3°
  • Dew point and barometric point as derived variables
  • 5W Solar panel powered with 6V12Ah battery

2.2 Installation

2.2.1 Assembly of the weather station

Setup the weather station following DAVIS INSTRUMENTS Instructions:

  • Sensor suite 6820CM or 6322CM
  • Solar box 6612
  • Cabled Weather Envoy®6316CEU6316CEU
  • WeatherLink® Serial-Port Data Logger 6510SER 6510SER
  • Tripod (if present) 7716A
  • Pole kit (if present) 7717
  • UV sensor (if present) 6490

Important notes (not exhaustive - please refer to Davis documents for full notes):

  • enginko LoRaWAN® interface (MCF-LW06DAV or MCF-LW06DAVP) must be the last device to be powered on.
  • On the rain collector, remove the plastic tie that holds the tipping spoon in place during shipping.
  • Install the sensor suite (UV sensor, solar radiation sensor, rain collector) as level as possible to ensure accurate measurements.
  • In the Northern Hemisphere, the solar panel should face south for maximum sun exposure, and the anemometer arm should point north for proper wind direction calibration.
  • In the Southern Hemisphere, the solar panel should face north for maximum sun exposure.
  • Check the battery voltage before installing the weather station in the final place. If less than 6.3V recharge it.

2.2.2 LoRaWAN interface

On the DW-6612 solar panel box proceed as follow (see below image):


  1. Remove the 6316CEU by sliding down-up and pull.
  2. Insert provided 4xAA size batteries on the 6316CEU.
  3. Connect the “console” cable “A” coming from the 6820CM, by entering the box using the gasket on the bottom side’s hole.
  4. Fasten the 6316CEU to the box
  5. Connect the red wire terminal “B” to the positive terminal of the battery “C”.
  6. Connect the white connector to the LoRaWAN® interface “D”:


2.2.3 Antenna

Mount the provided antenna on the pole using fasteners. On the DW-6612 solar panel box, connect the antenna connector to the MCF-LW06DAV device (Davis station to LoRaWAN™ interface) as shown below by entering the box using the gasket on the bottom side’s hole:


2.2.4 PM sensor (if present)

Mount the solar shield with the PM sensor on the pole (at the back of the DW-6612 solar panel box) following the enclosed instruction:


On the Davis 6612 solar panel box, connect the cable to the MCF-LW06DAVP device (Davis station to LoRaWAN™ interface) as shown below by entering the box using the gasket on the bottom side’s hole:


2.3 Configuration

To deploy the sensor, use LoRaWEB online tool, to setup LoRaWAN® credentials and other preferences (only available for Windows®) :

LoRaWEB Tool (

Before connect the device the first time, please install LoRaBridge applicarions and drivers:

Validate your settings reading data after the write.

enginko provides, upon free registration, user manuals, javascript examples, downlink generator, uplink decoder, firmware updates and different tools :

2.4 System led

LoRaWAN® not configured Slow flashing
Joining Quick flashing
Sending Quick flashing
Receiving Quick flashing
Steady state Fixed
Data error Flashing 2 seconds
Connection error Flashing 1 second

2.5 Firmware update

Save the new firmware file (.exe) on the PC, run the file, select the USB FW port and start the update:

and waiting for the end message.

3. Setup

3.1 Period

Period is the interval (in minutes) between one measure and the next one. The sensor sends one measures for every transmission. Value can be between 15 and 65535 minutes (default: 30 minutes).

Period interval can be set with App or with downlink command.

3.2 Altitude compensation

When the sensor is not installed at the sea level, the reading of barometric pressures at other elevations must be compensated.

Set the right altitude value with LoRaWEB.

Value can be from -300 to 3000 meters.

Altitude can also be set with downlink command.

3.3 Other settings

set to change DST (default: none).

Time sync uplink:
set to disable time synchronization request (default: enabled).

Normally sensor asks for a time sync at every power on (uplink starting with 01) or once a week. If no or wrong reply received it will retry after 1 hour.

If not handled in the right way can cause a unnecessary battery consumption (battery life < 2 years).

Please check chapter 2.1 DATA FRAME FORMAT.

Confirmed Uplinks:
set for unconfirmed uplinks (default: confirmed uplink).

Single join/day:
set for to allow only one join per day (default: multiple join allowed).

LED working:
Set OFF to turn off the diagnostic led.

Internal use.

4. Diagnostic

Press Check to verify the correct communication betweet the LoRaWAN® interface and the Davis envoy.

5 LoRaWAN network

The sensor is compliant with LoRaWAN® specification 1.0.2, regional 1.0.2b.

5.1 Activation

The device supports the following activations on a LoRaWAN® network:

  1. NONE: sensor not activated
  2. OTAA: the JoinEUI and the AppKey not setted, must be written to the device;
  3. OTAA MCF88: Over the air activation, fixed keys: JoinEUI = 904e915000000002, AppKey on request;
  4. OTAA ENGINKO: Over the air activation, fixed keys: JoinEUI = 904e915000000002, AppKey on request;
  5. ABP: requires writing to the device of NwkSkey, AppSkey, DevAddr.

The device exits factory activated with NONE mode. On request devices can be shipped aleady activated.

Note: in OTAA AppKey is write only, in reading the field will always be empty, even if set.

5.2 Other settings

Network settings:
please keep “Any” settings. Change it only if Objenious network is used (default_ any).

Network type:
LoRa syncword can be setted as “private”(0x12) instead “public” (0x34), but the NS must be setted accordingly (default: public).

select the right LoRaWAN ® band settings accodingly to country requirements.

6 Passwords

The device can be protected by passwords, to avoid unauthorized persons to read data or modify parameters.

As default passwords are equal to 0.

Allowed values range from 0 to 999999999 (only numbers).

To change the passwords, set the new values with LoRaWEB:

Once the passwords are setted, to gain access from LoRaWEB to the sensor, et the right values before reading from the device:

To bring back the sensor to factory default and reset the passwords, a reset code must be requested to enginko (please provide the DevEUI of the sensor when you ask for that code).

7 Configuration file

WIth LoRaWEB is possible to configure the device using an XML file, instead to manually adjust the parameters (for details about the file format please ask to enginko). This is very useful especially in case of multiple devices configuration.

With “Save” button an XML file with the actual configuration of the sensor will be generated. This is useful to store or clone the configuration, or to send it to enginko's support if needed.

7.1 Multi devices configuration

WIth LoRaWEB is possible to configure many devices in an easy way.

For multi-configuration is needed at least one XML file with the parameters to set.

Settings on this file will be applied to all the sensors.

With an additional XLS file is possible to load different LoRa configuration parameters (Activation Type, AppKey, AppEUI, NetKey, DevAddress, Band, Private option) for each sensor, based on DevEUI.

XLS is prevailing on the XML, so if both files are enabled, if the DevEUI of the device matches one of the DevEUIs in the XLS file, LoRa parameters will be setted from this one.

These configuration can be done in the in the Settings:

  • Use of the general configuration by file;
  • Use of the specific configuration by file.

For details on files format please ask to enginko.

8 Payload

For payload descriptions, uplinks and downlinks format and available commands please refer to this document:


9 Maintenance

Please follow the instrunctions provided by Davis instruments:


10 Davis references

10.1 Sensors data

10.2 Derived weather variables

11 Ordering code

Code Description
MCF-LW06DAVK enginko Davis to LoRaWAN® interface kit EU863-870
MCF-LW06DAVK-AS enginko Davis to LoRaWAN® interface kit AS920-925
MCF-LW06DAVK-US enginko Davis to LoRaWAN® interface kit US902-928
MCF-LW06DAVK-AU enginko Davis to LoRaWAN® interface kit AU915-928
MCF-LW06DAVPK enginko Davis to LoRaWAN® interface kit with PM sensor EU863-870
MCF-LW06DAVPK-AS enginko Davis to LoRaWAN® interface kit with PM sensor AS920-925
MCF-LW06DAVPK-US enginko Davis to LoRaWAN® interface kit with PM sensor US902-928
MCF-LW06DAVPK-AU enginko Davis to LoRaWAN® interface kit with PM sensor AU915-928

12 Declaration of conformity

Hereby, enginko Srl declares that MCF-LW06DAVK/DAVPK complies with the essential requirements and other relevant provisions of Directive 2014/53/EU.

13 Contacts

enginko Srl
Via Roma 3 I-28060 Sozzago (NO)
T : +39 0321 15 93 088

E :