YOSensi YO Distance User manual

YO Distance
User guide v1.2

YO Distance User guide v1.2
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Release notes
Released
Version
Key changes
05.09.2022
1.0
Initial release.
20.06.2023
1.1
Added node configuration with Yosensi Management
Platform. Changed description of connecting nodes with
Yosensi Management Platform.
26.10.2023
1.2
Added configuration with Yosensi Mobile App.
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Content
Release notes 2
Content 2
Product description 4
Overview 4
Physical interfaces 5
LEDs 5
Buttons 5
Specifications 6
Physical 6
Operating conditions 7
Measured values 7
Distance 7
Temperature and relative humidity 8
Battery condition 9
Installation 10
Package contents 10
Safety precautions 10
Installation guide 11
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
YO Distance is a LoRaWAN device for ultrasonic distance measurement. One use case example is
monitoring the water level in a remote tank. Additionally, the device contains sensors that measure
temperature, relative humidity.
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 sticker.
Physical interfaces
LEDs
YO Distance is equipped with a RGBW LED to indicate the operating status on the top of the device.
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 Distance is equipped with one reset button inside the device. Reset button is placed on the PCB
board opposite the electrical socket sensor.
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Specifications
Physical
Figure 3 Dimensions of the device.
PHYSICAL SPECIFICATION
Dimensions
Height: 40 mm
Width: 100 mm
Depth: 100 mm
Colour
Light grey
Mounting method
Horizontal
Vertical (can be screwed to the wall)
Enclosure material
ASA
Level of protection
IP67
Weight
176 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
Measurement range
Accuracy
Distance
Measuring range from flat
surfaces (cardboard surface
measuring 50 cm x 60 cm):
From 3 cm to 420 cm
Blind distance:
From 0 cm to 3 cm
Temperature
-40° to 125°C
±0.2°C (5° to 60°C)
Relative humidity
0% to 100%
±2% (20% to 80%)
Distance
The ultrasonic sensor sends out high frequency sound waves in the environment of the detection,
meanwhile receives the reflection of the ultrasonic echo from nearby objects and directly outputs
distance reading through processing the echo time . Due to waterproof ultrasonic transducers it can
be used i.e. water tanks to verify water level or gasoline tanks.
Figure 4 Distance measurement exemplary chart.
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Temperature and relative 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 6 Internal temperature exemplary chart.
Figure 6 Internal humidity exemplary chart.
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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 7 Battery voltage exemplary chart.
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Installation
Package contents
1. Device (without batteries).
2. Warranty card.
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: remove 4 screws from the enclosure.Gently disassemble the device (the
cover and bottom of the device are connected via cable).
Figure 8 Device opening instructions.
2. Place 3 AA batteries in the device according to the polarity marked on the PCB..
Figure 9 Instruction of placing 3AA batteries in the device.
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3. The device is on. Screw it back together.
Figure 10 Top view of YO Distance after assembling it.
4. Press the spring contact in the DI connector and insert the pulse counting cable. Tighten the
cable gland nut to immobilize the sensor cable and maintain tightness.
Figure 11 Tightening the cable gland instructions.
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5. The device is suitable for horizontal mounting. It is recommended that it be placed in the
center of the cover (ceiling) of the water tank, so that the distance from the tank walls is the
same on each side.
Figure 12 Instruction for horizontal mounting of the device.
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Operation
IoT system components
Typical IoT systems consist of 3 main elements (Figure 13), 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 13 IoT system components.
Figure 14 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 Distance device.
{
"info": {
"devmodel": "LNDN",
"fwver": "3.6.1",
"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": 300
}
}
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GENERICS PARAMETERS
SECTION
NAME
DESCRIPTION
POSSIBLE
VALUES
DEFAULT
VALUE
READ/
WRITE
info
devmodel
Device name
-
LNDN
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
Not
supported
R/W
Sub-band 2; 923.2 - 924.5 MHz; channels 9-17
2
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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 the application and locate and select the device by looking for the DEV EUI on the
device label that matches the NODE ID in the list.
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 15 Update configuration section view.
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6. Press the Upload button and wait.
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 16 Configuration view in mobile app.
5. After changing parameters, press the “Save” button.
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