YOSensi YO Airflow Pro User manual

YO Airflow Pro Dual
User guide v1.3

YO Airflow Pro Dual User guide v1.3
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Release notes
Released
Version
Key changes
24.03.2023
1.0
Initial release.
19.03.2023
1.1
Changes to configuration node description, figure 18 and
additional note.
27.07.2023
1.2
Changed description of connecting nodes with Yosensi
Management Platform.
26.10.2023
1.3
Added configuration with Yosensi Mobile App.
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Content
Release notes 2
Content 3
Product description 4
Overview 4
Physical interfaces 5
LEDs 5
Buttons 5
Specifications 6
Physical 6
Operating conditions 7
Measured values 7
Internal Temperature and relative internal humidity 7
Battery condition 8
Differential pressure 9
Installation 10
Package contents 10
Safety precautions 10
Installation guide 11
Important! 12
Important to avoid breaking the device! 12
Operation 14
IoT system components 14
Device configuration 15
Configurable parameters 15
Parameters description 17
Configuration node with Yosensi Management Platform 19
Configuration node with Yosensi mobile app 20
Connecting node with network 21
Yosensi Management Platform configuration 21
Adding a node manually 21
Adding node via Bluetooth 24
Payload description 25
Compliance statements 26
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Product description
Overview
The YO Airflow Pro Dual is equipped with two differential pressure sensors. It can be used to verify
the dirtiness of air filters and control the pressure in air conditioning systems and air blowers. Other
uses include controlling and monitoring airflow and air pressure in fan coil units.
Figure 1 Device top view.
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Device sticker placed on the right side of the device enclosure contains information about model,
version, LoRaWAN region and 3 parameters important in case of device identification and
configuration:
-DEV EUI: 64-bit unique device identifier in a LoRaWAN network,
-DEV ADDR: address required to connect via ABP activation type to LoRaWAN,
-BLE MAC: bluetooth physical address.
Figure 2 Device label.
Physical interfaces
LEDs
YO Airflow Pro Dual communicates its current behaviour to the user by RGBW LED placed on the
top.
DIODE STATUES INTERPRETATION
BEHAVIOUR
COLOUR
DEVICE STATUS
Single flash
Green
General: device is working correctly (power and memory).
Single flash
Red
General: device is working incorrectly (power and memory).
LoRaWAN communication: failed to receive an
acknowledgement from LoRaWAN Server within specified
timeout.
Single flash
White
LoRaWAN communication: LoRaWAN frame sent \
confirmation from LoRaWAN Server after receiving the frame.
Slow flashing
Blue
BLE communication: connection to the device via BLE
(configuration).
Rapid flashing
Blue
LoRaWAN communication: connecting to LoRaWAN network.
Buttons
YO Airflow Pro Dual is equipped with one reset button inside the device on the PCB board next to
the RGBW LED diode.
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Specifications
Physical
Figure 3 Dimensions of the device.
PHYSICAL SPECIFICATION
Dimensions
Height: 42 mm
Width: 88 mm
Depth: 64 mm
Colour
Light grey
Mounting method
Horizontal
Vertical (can be screwed to the wall)
Enclosure material
ABS
Level of protection
IP67
Weight
307 g
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Operating conditions
OPERATING CONDITIONS
Temperature
0° to 70°C
Humidity
0 to 90%
Placement
Indoor use
Power supply
3 x LR6 (AA) battery (3 x 1,5 V)
Power consumption
Maximum 120 mA DC (4,5 V DC)
Measured values
MEASUREMENT RANGES
Parameter
Measuring range
Accuracy
Differential pressure
-500 Pa to 500 Pa
0,1 Pa + 3% reading
(temperature dependent)
Temperature (internal)
-40°C to 125°C
±0,2°C (from 5°C to 60°C )
Relative humidity (internal)
0% to 100%
±2% (at 20%RH to 80% RH)
Internal Temperature and relative internal humidity
Temperature and relative humidity are measured by sensors placed inside the device enclosure.
These measurements can be used to monitor if the device is working in recommended conditions.
Figure 4 Internal temperature monitoring chart.
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Figure 5 Internal humidity monitoring chart.
Battery condition
Battery voltage is used to monitor its condition – to spot anomalies (like sudden drop) or its current
condition based on voltage drop over time in comparison to initial voltage rating.
Figure 6 Battery voltage chart.
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Differential pressure
Differential pressure is measured by two separate sensors. One of them provides information about
air pressure before the filter; the second measures air pressure after the filter. Measurements inform
users about airflow and air quality.
Figure 7 Example chart of differential pressure on first sensor.
Figure 8 Example chart of differential pressure on second sensor.
Figure 9 Example chart compared differential pressure of both sensors.
Figure 10 Example chart of differential pressure change in [%]
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Installation
Package contents
1. Device (without batteries).
2. Warranty card.
3. Silicon tubes
4. Brackets or pitot tubes (sold separately).
Safety precautions
SAFETY PRECAUTIONS
SYMBOL
DESCRIPTION
Device is marked with a symbol saying that electrical and electronic
products may not be mixed with unsorted household waste. Remember
that batteries used to power the device must be treated at a specialized
treatment facility.
Remember about possible electrostatic discharge when replacing battery,
connecting input or doing some other operations near inside electronics.
Be careful while handling the device – dropping it may cause damage that will
affect the sensors and other electronics inside.
When installing the device on the wall remember to wear adequate protective
equipment.
To maintain the level of protection device cover screws must be properly
tightened. Device shouldn’t be used without cover.
Any actions inside the device's enclosure (excluding replacing batteries) must
be performed by trained personnel only.
Clean the device only with damp cloth.
Device is intended for outdoor and indoor use. Make sure that device is not
exposed for long term UV rays and in an environment in the immediate
vicinity of water which may flood the device
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Installation guide
1. Unscrew the device and remove all four screws from the enclosure.
Figure 11 Opening the enclosure of the device.
2. Place three LR6 batteries in the device according to the polarity indicated on the battery
holder.
Figure 12 Battery placement instructions.
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3. Test to ensure the device turns on, then screw the enclosure back together.
4. Insert the silicone tubing into the sensor inputs.
Figure 13 Silicone tubing connection instructions.
Important!
The sensors must be placed according to the following diagram, i.e., the sensor measuring the higher
pressure must be placed on the right side and the one measuring the lower pressure on the left side:
Figure 14 Silicone tubing connection instructions (side view).
Important to avoid breaking the device!
When removing silicone tubes, it is necessary to use a sharp tool. First, the tubes must be cut off at
the edge of the sensor, then you can cut off the rest of the tube located along the black sensor. Be
careful to gently remove the rest of the silicon tube without breaking the sensor.
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5. Connect the silicone tubes to the mounting brackets.
Figure 15 Silicone tubing with correctly fitted brackets.
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Operation
IoT system components
Typical IoT systems consist of 3 main elements (Figure 16), brief described below. In order to set
communication, each element must be properly configured.
1. Node – device with sensors and a wireless communication module that gathers data, forms
the payload and sends it to the gateway.
2. Gateway – device similar to routers, equipped with a LoRa concentrator, that receives LoRa
packets and send them to the Internet-connected server.
3. Server – in most cases, a cloud-based service where data is processed, stored, analysed, and
presented in user-friendly ways (via a user interface); Yosensi default and recommended
tools are Yosensi Management Platform (for IoT structure management) and Grafana (for
data presentation).
Figure 16 IoT system components.
Figure 17 Fresnel zone where communication between two antennas can occur.
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Device configuration
Configurable parameters
A few parameters must be set before sending data to the gateway. The default firmware is configured
in OTAA mode with predefined deveui,appkey (OTAA)and appskey,nwkskey (ABP).
Configuration of the device is stored in a JSON file divided into the following sections:
-info (generic, read only): information about the device,
-lorawan (generic): configuration data for LoRaWAN connection,
-ble (generic): bluetooth settings,
-device (dynamic): individual configuration for a specific device (this section’s structure differs
for each device),
Sample configuration file for the YO Airflow Pro Dual device.
{
"info": {
"devmodel": "LNAD",
"fwver": "3.5.0",
"loraradio": "SX1261",
"lorawanver": "1.0.2",
"loraregion": "EU868",
"blemacaddr": "0123456789ab"
},
"lorawan": {
"subband": 1,
"nwktype": "public",
"acttype": "otaa",
"otaa": {
"deveui": "0123456789abcdef",
"appeui": "fedcba9876543210",
"appkey": "000102030405060708090a0b0c0d0e0f",
"trials": 3
},
"abp": {
"devaddr": "01234567",
"nwkskey": "0123456789abcdef0123456789abcdef",
"appskey": "000102030405060708090a0b0c0d0e0f"
}
},
"ble": {
"power": 0,
"interval": 1600
},
"device": {
"measinterval": 3600
}
}
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GENERICS PARAMETERS
SECTION
NAME
DESCRIPTION
POSSIBLE
VALUES
DEFAULT
VALUE
READ/
WRITE
info
devmodel
Device name
-
LNDA
R
fwver
Firmware version
-
3.6.1
R
loraradio
Radio chipset model
-
SX12611
R
lorawanver
LoRaWAN stack version
-
1.0.2
R
loraregion
LoRaWAN region
-
EU8681
R
blemacaddr
Bluetooth LE address
-
predefined
R
lorawan
subband
Uplink subband number
Table2
predefined
R/W
nwktype
Network type
public,
private
public
R/W
acttype
Activation type
otaa, abp
otaa
R/W
lorawan
-otaa
deveui
Device EUI (Extended
Unique Identifier)
8 B (HEX)
predefined
R/W
appeui
Application EUI
8 B (HEX)
predefined
R/W
appkey
Application Key
16 B (HEX)
predefined
R/W
trials
Join request trials
1-9
3
R/W
lorawan
-abp
devaddr
Device Address
4 B (HEX)
predefined
R/W
nwkskey
Network Session Key
16 B (HEX)
predefined
R/W
appskey
Application Session Key
16 B (HEX)
predefined
R/W
ble
power
Bluetooth LE transmit power
[dBm]
04
0
R/W
interval
Bluetooth LE advertising
interval [ms]
MS_INPUT3
1600
R/W
1LoRa radio chipset used defines the LoRaWAN region: SX1261 - EU868; SX1262 - AU915, US915, AS923
2Uplink subband list for specific LoRaWAN regions - UPLINK SUBBAND Table.
3Calculation formula: MS_INPUT = INTERVAL_MS × 1.6.
4Change currently not supported.
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DEVICE PARAMETERS
NAME
DESCRIPTION
POSSIBLE
VALUES
DEFAULT
VALUE
READ/
WRITE
measinterval
Measuring and sending interval
LoRa [s]
120–999999
3600
R/W
Parameters description
-nwktype: used for setting the device in public or private network type.
-acttype: used for setting the device in ABP or OTAA mode.
-deveui, … , appskey: predefined addresses and keys, these parameters are generated using
multiple IDs specific to the particular MCU and are unique for each device.; they can be
changed if needed.
-interval: determines the interval of sending broadcast packets, used to connect to every BLE
receiver around the device.
-subband: used for setting the communication frequency sub-band in LoRaWAN.
-measinterval: measurement interval [s] between sending LoRa packets.
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UPLINK SUBBAND
REGION
DESCRIPTION
POSSIBLE
VALUES
DEFAULT
VALUE
READ/
WRITE
EU868
Sub-band 1; 867.1 - 868.5 MHz; channels 0-7
1
1
R
US915
Sub-band 1; 902.3 - 903.7 MHz; channels 0-7
1
2
R/W
Sub-band 2; 903.9 - 905.3 MHz; channels 8-15
2
Sub-band 3; 905.5 - 906.9 MHz; channels 16-23
3
Sub-band 4; 907.1 - 908.5 MHz; channels 24-31
4
Sub-band 5; 908.7 - 910.1 MHz; channels 32-39
5
Sub-band 6; 910.3 - 911.7 MHz; channels 40-47
6
Sub-band 7; 911.9 - 913.3 MHz; channels 48-55
7
Sub-band 8; 915.5 - 914.9 MHz; channels 56-63
8
AU915
Sub-band 1; 915.2 -916.6 MHz; channels 0-7
1
2
R/W
Sub-band 2; 916.8 - 918.2 MHz; channels 8-15
2
Sub-band 3; 918.4 - 919.8 MHz; channels 16-23
3
Sub-band 4; 920.0 - 921.4 MHz; channels 24-31
4
Sub-band 5; 921.6 - 923.0 MHz; channels 32-39
5
Sub-band 6; 923.2 - 924.6MHz; channels 40-47
6
Sub-band 7; 924.8 - 926.2 MHz; channels 48-55
7
Sub-band 8; 926.4 - 927.8 MHz; channels 56-63
8
AS923
Sub-band 1; 922.0 -923.2 MHz; channels 0-8
1
1
R/W
Sub-band 2; 923.2 - 924.5 MHz; channels 9-17
2*
2* change is not supported
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Configuration node with Yosensi Management Platform
Connect to the device as follows:
1. Log in at app.yosensi.io
2. You’ll see the dashboard organization view. Go to the Application section in the sidebar.
3. Select application, locate and select the device by looking for the DEV EUI on the device label
4. Select the Firmware section. For the configuration of the device, you can see three different
buttons:
●Configure – here, you can change and upload the device parameters.
●Update firmware – here, you can update the firmware to version 3.4.0 and newer.
●Recover device – this section restores the firmware of the device. This button helps if
you lose the connection while uploading firmware.
5. Once the “Configure” button has been selected and the node has been paired with the
computer, the next step is configuring parameters. You will see 2 different display options for
the configuration. The first recommended is “Form-based-editor” and the second is “Text
editor”. Possible values with the description of each parameter can be found in the device
configuration.
Figure 18 Update configuration section view.
6. Press the Upload button and wait.
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NOTE
Additional information including device configuration can be found in Yosensi
configuration web tool.
Configuration node with Yosensi mobile app
Connect to the device using Yosensi app as follows:
1. Login to Yosensi App using your credentials.
2. Go to the Devices section and choose the device you want to configure. If you can not see the
device ensure that you are in the correct organization. Alternatively you can also scan the QR
code placed on the node. It will redirect you right to the device details.
3. After selecting the device go to the “configuration” option in device details. Now wait, your
mobile will pair with the node.
4. You will see 2 different display options of the configuration, first recommended is
“Form-based-editor” second “Text editor”. Possible values with description of each parameter
can be found in the device configuration.
Figure 19 Configuration view in mobile app.
5. After changing parameters, press the “Save” button.
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