Changes for page LMDS200 -- LoRaWAN Microwave Radar Distance Sensor User Manual

Last modified by Mengting Qiu on 2025/08/06 17:02

From 151.14 to 151.15 From 173.6 to 173.7

From version 151.15

edited by Xiaoling
on 2022/06/11 09:39

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To version 173.6

edited by Xiaoling
on 2022/06/15 10:15

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--LDDS75 - LoRaWAN Distance Detection Sensor User Manual
++LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual

Content

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--**Contents:**
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--macro:toc
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--* [[1.  Introduction>>doc:null||anchor="H1.A0Introduction"]]
--** [[1.1  What is LoRaWAN Distance Detection Sensor>>doc:null||anchor="H1.1200BWhatisLoRaWANDistanceDetectionSensor"]]
--** [[1.2  Features>>doc:null||anchor="H200B1.2A0Features"]]
--** [[1.3  Specification>>doc:null||anchor="H1.3A0Specification"]]
--*** [[1.3.1  Rated environmental conditions>>doc:null||anchor="H1.3.1A0Ratedenvironmentalconditions"]]
--*** [[1.3.2  Effective measurement range Reference beam pattern>>doc:null||anchor="H1.3.2A0EffectivemeasurementrangeReferencebeampattern"]]
--** [[1.5  Applications>>doc:null||anchor="H1.5200BApplications"]]
--** [[1.6  Pin mapping and power on>>doc:null||anchor="H1.6A0Pinmappingandpoweron"]]
--* [[2.  Configure LDDS75 to connect to LoRaWAN network>>doc:null||anchor="H2.A0ConfigureLDDS75toconnecttoLoRaWANnetwork"]]
--** [[2.1  How it works>>doc:null||anchor="H2.1A0Howitworks"]]
--** [[2.2  Quick guide to connect to LoRaWAN server (OTAA)>>doc:null||anchor="H2.2A0200BQuickguidetoconnecttoLoRaWANserver28OTAA29"]]
--** [[2.3  Uplink Payload>>doc:null||anchor="H2.3A0200BUplinkPayload"]]
--*** [[2.3.1  Battery Info>>doc:null||anchor="H2.3.1A0BatteryInfo"]]
--*** [[2.3.2  Distance>>doc:null||anchor="H2.3.2A0Distance"]]
--*** [[2.3.3  Interrupt Pin>>doc:null||anchor="H2.3.3A0InterruptPin"]]
--*** [[2.3.4  DS18B20 Temperature sensor>>doc:null||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
--*** [[2.3.5  Sensor Flag>>doc:null||anchor="H2.3.5A0SensorFlag"]]
--*** [[2.3.6  Decode payload in The Things Network>>doc:null||anchor="H2.3.6A0DecodepayloadinTheThingsNetwork"]]
--** [[2.4  Uplink Interval>>doc:null||anchor="H2.4A0UplinkInterval"]]
--** [[2.5  Show Data in DataCake IoT Server>>doc:null||anchor="H2.5A0200BShowDatainDataCakeIoTServer"]]
--** [[2.6  Frequency Plans>>doc:null||anchor="H2.6A0FrequencyPlans"]]
--*** [[2.6.1  EU863-870 (EU868)>>doc:null||anchor="H2.6.1A0EU863-87028EU86829"]]
--*** [[2.6.2  US902-928(US915)>>doc:null||anchor="H2.6.2A0US902-92828US91529"]]
--*** [[2.6.3  CN470-510 (CN470)>>doc:null||anchor="H2.6.3A0CN470-51028CN47029"]]
--*** [[2.6.4  AU915-928(AU915)>>doc:null||anchor="H2.6.4A0AU915-92828AU91529"]]
--*** [[2.6.5  AS920-923 & AS923-925 (AS923)>>doc:null||anchor="H2.6.5A0AS920-92326AS923-92528AS92329"]]
--*** [[2.6.6  KR920-923 (KR920)>>doc:null||anchor="H2.6.6A0KR920-92328KR92029"]]
--*** [[2.6.7  IN865-867 (IN865)>>doc:null||anchor="H2.6.7A0IN865-86728IN86529"]]
--** [[2.7  LED Indicator>>doc:null||anchor="H2.7A0LEDIndicator"]]
--** [[2.8  Firmware Change Log>>doc:null||anchor="H2.8A0200BFirmwareChangeLog"]]
--** [[2.9  Mechanical>>doc:null||anchor="H2.9A0Mechanical"]]
--** [[2.10  Battery Analysis>>doc:null||anchor="H2.10A0BatteryAnalysis"]]
--*** [[2.10.1  Battery Type>>doc:null||anchor="H2.10.1A0BatteryType"]]
--*** [[2.10.2  Replace the battery>>doc:null||anchor="H2.10.2A0Replacethebattery"]]
--* [[3.  Configure LDDS75 via AT Command or LoRaWAN Downlink>>doc:null||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]
--** [[3.1  Access AT Commands>>doc:null||anchor="H3.1A0AccessATCommands"]]
--** [[3.2  Set Transmit Interval Time>>doc:null||anchor="H3.2A0SetTransmitIntervalTime"]]
--** [[3.3  Set Interrupt Mode>>doc:null||anchor="H3.3A0SetInterruptMode"]]
--* [[4.  FAQ>>doc:null||anchor="H4.A0FAQ"]]
--** [[4.1  What is the frequency plan for LDDS75?>>doc:null||anchor="H4.1A0WhatisthefrequencyplanforLDDS753F"]]
--** [[4.2  How to change the LoRa Frequency Bands/Region>>doc:null||anchor="H4.2A0HowtochangetheLoRaFrequencyBands2FRegion"]]
--** [[4.3  Can I use LDDS75 in condensation environment?>>doc:null||anchor="H4.3A0CanIuseLDDS75incondensationenvironment3F"]]
--* [[5.  Trouble Shooting>>doc:null||anchor="H5.A0TroubleShooting"]]
--** [[5.1  Why I can’t join TTN V3 in US915 / AU915 bands?>>doc:null||anchor="H5.1A0WhyIcan2019tjoinTTNV3inUS9152FAU915bands3F"]]
--** [[5.2  AT Command input doesn't work>>doc:null||anchor="H5.2A0ATCommandinputdoesn27twork"]]
--* [[6.  Order Info>>doc:null||anchor="H6.A0OrderInfo"]]
--* [[7.  Packing Info>>doc:null||anchor="H7.200BPackingInfo"]]
--* [[8.  Support>>doc:null||anchor="H8.A0200BSupport"]]
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++**Table of Contents:**
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@@ -76,10 +76,9 @@
--
  = 1.  Introduction =
--== 1.1  What is LoRaWAN Distance Detection Sensor ==
++== 1.1  What is LoRaWAN Ultrasonic liquid level Sensor ==
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--The Dragino LDDS75 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)** ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS75 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
++(((
++The Dragino LDDS20 is a (% style="color:#4472c4" %)**LoRaWAN Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:#4472c4" %)**none-contact method **(%%)to measure the height of liquid in a container without opening the container, and send the value via LoRaWAN network to IoT Server
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--It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
++The LDDS20 sensor is installed directly below the container to detect the height of the liquid level. User doesn’t need to open a hole on the container to be tested. The (% style="color:#4472c4" %)**none-contact measurement makes the measurement safety, easier and possible for some strict situation**.
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--The LoRa wireless technology used in LDDS75 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
++LDDS20 uses ultrasonic sensing technology for distance measurement. LDDS20 is of high accuracy to measure various liquid such as: (% style="color:#4472c4" %)**toxic substances**(%%), (% style="color:#4472c4" %)**strong acids**(%%), (% style="color:#4472c4" %)**strong alkalis**(%%) and (% style="color:#4472c4" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
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--LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
++The LoRa wireless technology used in LDDS20 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
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--Each LDDS75 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
++LDDS20 is powered by (% style="color:#4472c4" %)**8500mA Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
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++Each LDDS20 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
++)))
++
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  (% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
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++[[image:1655255122126-327.png]]
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  * LoRaWAN 1.0.3 Class A
  * Ultra low power consumption
--* Distance Detection by Ultrasonic technology
--* Flat object range 280mm - 7500mm
--* Accuracy: ±(1cm+S*0.3%) (S: Distance)
++* Liquid Level Measurement by Ultrasonic technology
++* Measure through container, No need to contact Liquid.
++* Valid level range 20mm - 2000mm
++* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
  * Cable Length : 25cm
  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
  * AT Commands to change parameters
@@ -149,74 +149,130 @@
  * Uplink on periodically
  * Downlink to change configure
  * IP66 Waterproof Enclosure
--* 4000mAh or 8500mAh Battery for long term use
++* 8500mAh Battery for long term use
++== 1.3  Suitable Container & Liquid ==
++* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
++* Container shape is regular, and surface is smooth.
++* Container Thickness:
++** Pure metal material.  2~~8mm, best is 3~~5mm
++** Pure non metal material: <10 mm
++* Pure liquid without irregular deposition.
++== 1.4  Mechanical ==
--== 1.3  Specification ==
++[[image:image-20220615090910-1.png]]
--=== 1.3.1  Rated environmental conditions ===
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++[[image:image-20220615090910-2.png]]
--(((
--**Remarks: (1)  a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
--)))
++== 1.5  Install LDDS20 ==
--=== 1.3.2  Effective measurement range Reference beam pattern ===
--**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
++(% style="color:blue" %)**Step 1**(%%):   Choose the installation point.
++LDDS20 (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
++[[image:image-20220615091045-3.png]]
--(% aria-label="1654852253176-749.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654852253176-749.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++(% style="color:blue" %)**Step 2**(%%):   Polish the installation point.
--(((
--**(2)** **The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
--)))
++For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth.
++[[image:image-20220615092010-11.png]]
--(% aria-label="1654852175653-550.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654852175653-550.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)(% style="display:none" %) ** **
++No polish needed if the container is shine metal surface without paint or non-metal container.
++[[image:image-20220615092044-12.png]]
--== 1.5  Applications ==
--* Horizontal distance measurement
--* Liquid level measurement
--* Parking management system
--* Object proximity and presence detection
--* Intelligent trash can management system
--* Robot obstacle avoidance
--* Automatic control
--* Sewer
--* Bottom water level monitoring
++(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
++Power on LDDS75, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
--== 1.6  Pin mapping and power on ==
++It is necessary to put the coupling paste between the sensor and the container, otherwise LDDS20 won’t detect the liquid level.
++[[image:1655256160324-178.png]][[image:image-20220615092327-13.png]]
--(% aria-label="1654847583902-256.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654847583902-256.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++After paste the LDDS20 well, power on LDDS20. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
--= 2.  Configure LDDS75 to connect to LoRaWAN network =
++(% style="color:red" %)**LED Status:**
++* Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
++
++* (% style="color:blue" %)BLUE LED(% style="color:red" %) always ON(%%): Sensor is power on but doesn’t detect liquid. There is problem in installation point.
++* (% style="color:blue" %)BLUE LED(% style="color:red" %) slowly blinking(%%): Sensor detects Liquid Level, The installation point is good.
++
++LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
++
++
++(% style="color:red" %)**Note 2:**
++
++(% style="color:red" %)Ultrasonic coupling paste (%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
++
++
++
++(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
++
++Prepare Eproxy AB glue.
++
++Put Eproxy AB glue in the sensor and press it hard on the container installation point.
++
++Reset LDDS20 and see if the BLUE LED is slowly blinking.
++
++[[image:image-20220615091045-8.png||height="226" width="380"]]      [[image:image-20220615091045-9.png||height="239" width="339"]]
++
++
++(% style="color:red" %)**Note 1:**
++
++Eproxy AB glue needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
++
++
++(% style="color:red" %)**Note 2:**
++
++(% style="color:red" %)Eproxy AB glue(%%) is subjected in most shipping way. So the default package doesn’t include it and user needs to purchase locally.
++
++
++
++== 1.6  Applications ==
++
++* Smart liquid control solution.
++* Smart liquefied gas solution.
++
++== 1.7  Precautions ==
++
++* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
++* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
++* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
++
++== 1.8  Pin mapping and power on ==
++
++
++[[image:1655257026882-201.png]]
++
++
++
++= 2.  Configure LDDS20 to connect to LoRaWAN network =
++
++
  == 2.1  How it works ==
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--The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
++The LDDS20 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS20. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value.
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--In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
++In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0UsingtheATCommands"]]to set the keys in the LDDS20.
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++[[image:1655257698953-697.png]]
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--(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
++
++
++(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS20.
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--Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
++Each LDDS20 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
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++[[image:image-20220607170145-1.jpeg]]
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  **Add APP EUI in the application**
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--(% aria-label="image-20220610161353-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610161353-4.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220610161353-4.png]]
--(% aria-label="image-20220610161353-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610161353-5.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220610161353-5.png]]
--(% aria-label="image-20220610161353-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610161353-6.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220610161353-6.png]]
--(% aria-label="image-20220610161353-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610161353-7.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220610161353-7.png]]
++
  You can also choose to create the device manually.
--                                          (% aria-label="image-20220610161538-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610161538-8.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++                                          [[image:image-20220610161538-8.png]]
  **Add APP KEY and DEV EUI**
--(% aria-label="image-20220610161538-9.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610161538-9.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220610161538-9.png]]
--(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
++(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
--(% aria-label="image-20220610161724-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610161724-10.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220615095102-14.png]]
++
  (((
--(% style="color:blue" %)**Step 3**(%%)**:** The LDDS75 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
++(% style="color:blue" %)**Step 3**(%%)**:**  The LDDS20 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
  )))
--(% aria-label="1654849068701-275.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654849068701-275.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:1654849068701-275.png]]
@@ -300,12 +300,10 @@
  (((
  (((
--LDDS75 will uplink payload via LoRaWAN with below payload format:
--)))
++LDDS20 will uplink payload via LoRaWAN with below payload format:
--(((
--Uplink payload includes in total 4 bytes.
--Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
++Uplink payload includes in total 8 bytes.
++Payload for firmware version v1.1.4. . Before v1.1.3, there is only 5 bytes: BAT and Distance(Please check manual v1.2.0 if you have 5 bytes payload).
  )))
  )))
@@ -325,7 +325,7 @@
  [[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
  )))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
--(% aria-label="1654850511545-399.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654850511545-399.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:1654850511545-399.png]]
@@ -332,7 +332,7 @@
  === 2.3.1  Battery Info ===
--Check the battery voltage for LDDS75.
++Check the battery voltage for LDDS20.
  Ex1: 0x0B45 = 2885mV
@@ -343,23 +343,19 @@
  === 2.3.2  Distance ===
  (((
--Get the distance. Flat object range 280mm - 7500mm.
++Get the distance. Flat object range 20mm - 2000mm.
  )))
  (((
--For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
++For example, if the data you get from the register is __0x06 0x05__, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0605(H) = 1541 (D) = 1541 mm.**
  )))
++* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
++* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
--* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
--* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
--
--
--
--
  === 2.3.3  Interrupt Pin ===
--This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.
++This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.2A0SetInterruptMode"]] for the hardware and software set up.
  **Example:**
@@ -400,533 +400,89 @@
  While using TTN network, you can add the payload format to decode the payload.
--(% aria-label="1654850829385-439.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654850829385-439.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:1654850829385-439.png]]
  The payload decoder function for TTN V3 is here:
  (((
--LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
++LDDS20 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS20/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
  )))
--== 2.4  Uplink Interval ==
++== 2.4  Downlink Payload ==
--The LDDS75 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
++By default, LDDS20 prints the downlink payload to console port.
++[[image:image-20220615100930-15.png]]
--== 2.5  Show Data in DataCake IoT Server ==
++**Examples:**
--(((
--[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
--)))
--(((
--
--)))
++* (% style="color:blue" %)**Set TDC**
--(((
--(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
--)))
++If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
--(((
--(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
--)))
++Payload:    01 00 00 1E    TDC=30S
++Payload:    01 00 00 3C    TDC=60S
--(% aria-label="1654592790040-760.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654592790040-760.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++* (% style="color:blue" %)**Reset**
--(% aria-label="1654592800389-571.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654592800389-571.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++If payload = 0x04FF, it will reset the LDDS20
--(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
++* (% style="color:blue" %)**CFM**
--(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
++Downlink Payload: 05000001, Set AT+CFM=1 or 05000000 , set AT+CFM=0
--(% aria-label="1654851029373-510.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654851029373-510.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
--After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
++== 2.5  Show Data in DataCake IoT Server ==
--(% aria-label="image-20220610165129-11.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610165129-11.png||data-widget="image" height="595" width="1088"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
--
--
--
--== 2.6  Frequency Plans ==
--
  (((
--The LDDS75 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
++[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
  )))
--
--
--=== 2.6.1  EU863-870 (EU868) ===
--
  (((
--(% style="color:blue" %)**Uplink:**
--)))
--
--(((
--868.1 - SF7BW125 to SF12BW125
--)))
--
--(((
--868.3 - SF7BW125 to SF12BW125 and SF7BW250
--)))
--
--(((
--868.5 - SF7BW125 to SF12BW125
--)))
--
--(((
--867.1 - SF7BW125 to SF12BW125
--)))
--
--(((
--867.3 - SF7BW125 to SF12BW125
--)))
--
--(((
--867.5 - SF7BW125 to SF12BW125
--)))
--
--(((
--867.7 - SF7BW125 to SF12BW125
--)))
--
--(((
--867.9 - SF7BW125 to SF12BW125
--)))
--
--(((
--868.8 - FSK
--)))
--
--(((
  )))
  (((
--(% style="color:blue" %)**Downlink:**
++(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
  )))
  (((
--Uplink channels 1-9 (RX1)
++(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
  )))
--(((
--869.525 - SF9BW125 (RX2 downlink only)
--)))
++[[image:1654592790040-760.png]]
--=== 2.6.2  US902-928(US915) ===
++[[image:1654592800389-571.png]]
--(((
--Used in USA, Canada and South America. Default use CHE=2
--(% style="color:blue" %)**Uplink:**
++(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
--903.9 - SF7BW125 to SF10BW125
++(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.(% style="color:red" %)(Note: LDDS20 use same payload as LDDS75)(%%)**
--904.1 - SF7BW125 to SF10BW125
++[[image:1654851029373-510.png]]
--904.3 - SF7BW125 to SF10BW125
--904.5 - SF7BW125 to SF10BW125
++After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
--904.7 - SF7BW125 to SF10BW125
++[[image:image-20220610165129-11.png||height="595" width="1088"]]
--904.9 - SF7BW125 to SF10BW125
--905.1 - SF7BW125 to SF10BW125
--905.3 - SF7BW125 to SF10BW125
++== 2.6  LED Indicator ==
++The LDDS20 has an internal LED which is to show the status of different state.
--(% style="color:blue" %)**Downlink:**
--923.3 - SF7BW500 to SF12BW500
--
--923.9 - SF7BW500 to SF12BW500
--
--924.5 - SF7BW500 to SF12BW500
--
--925.1 - SF7BW500 to SF12BW500
--
--925.7 - SF7BW500 to SF12BW500
--
--926.3 - SF7BW500 to SF12BW500
--
--926.9 - SF7BW500 to SF12BW500
--
--927.5 - SF7BW500 to SF12BW500
--
--923.3 - SF12BW500(RX2 downlink only)
--
--
--
--)))
--
--=== 2.6.3  CN470-510 (CN470) ===
--
--(((
--Used in China, Default use CHE=1
--)))
--
--(((
--(% style="color:blue" %)**Uplink:**
--)))
--
--(((
--486.3 - SF7BW125 to SF12BW125
--)))
--
--(((
--486.5 - SF7BW125 to SF12BW125
--)))
--
--(((
--486.7 - SF7BW125 to SF12BW125
--)))
--
--(((
--486.9 - SF7BW125 to SF12BW125
--)))
--
--(((
--487.1 - SF7BW125 to SF12BW125
--)))
--
--(((
--487.3 - SF7BW125 to SF12BW125
--)))
--
--(((
--487.5 - SF7BW125 to SF12BW125
--)))
--
--(((
--487.7 - SF7BW125 to SF12BW125
--)))
--
--(((
--
--)))
--
--(((
--(% style="color:blue" %)**Downlink:**
--)))
--
--(((
--506.7 - SF7BW125 to SF12BW125
--)))
--
--(((
--506.9 - SF7BW125 to SF12BW125
--)))
--
--(((
--507.1 - SF7BW125 to SF12BW125
--)))
--
--(((
--507.3 - SF7BW125 to SF12BW125
--)))
--
--(((
--507.5 - SF7BW125 to SF12BW125
--)))
--
--(((
--507.7 - SF7BW125 to SF12BW125
--)))
--
--(((
--507.9 - SF7BW125 to SF12BW125
--)))
--
--(((
--508.1 - SF7BW125 to SF12BW125
--)))
--
--(((
--505.3 - SF12BW125 (RX2 downlink only)
--)))
--
--
--
--=== 2.6.4  AU915-928(AU915) ===
--
--(((
--Default use CHE=2
--
--(% style="color:blue" %)**Uplink:**
--
--916.8 - SF7BW125 to SF12BW125
--
--917.0 - SF7BW125 to SF12BW125
--
--917.2 - SF7BW125 to SF12BW125
--
--917.4 - SF7BW125 to SF12BW125
--
--917.6 - SF7BW125 to SF12BW125
--
--917.8 - SF7BW125 to SF12BW125
--
--918.0 - SF7BW125 to SF12BW125
--
--918.2 - SF7BW125 to SF12BW125
--
--
--(% style="color:blue" %)**Downlink:**
--
--923.3 - SF7BW500 to SF12BW500
--
--923.9 - SF7BW500 to SF12BW500
--
--924.5 - SF7BW500 to SF12BW500
--
--925.1 - SF7BW500 to SF12BW500
--
--925.7 - SF7BW500 to SF12BW500
--
--926.3 - SF7BW500 to SF12BW500
--
--926.9 - SF7BW500 to SF12BW500
--
--927.5 - SF7BW500 to SF12BW500
--
--923.3 - SF12BW500(RX2 downlink only)
--
--
--
--)))
--
--=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
--
--(((
--(% style="color:blue" %)**Default Uplink channel:**
--)))
--
--(((
--923.2 - SF7BW125 to SF10BW125
--)))
--
--(((
--923.4 - SF7BW125 to SF10BW125
--)))
--
--(((
--
--)))
--
--(((
--(% style="color:blue" %)**Additional Uplink Channel**:
--)))
--
--(((
--(OTAA mode, channel added by JoinAccept message)
--)))
--
--(((
--
--)))
--
--(((
--(% style="color:blue" %)**AS920~~AS923 for Japan, Malaysia, Singapore**:
--)))
--
--(((
--922.2 - SF7BW125 to SF10BW125
--)))
--
--(((
--922.4 - SF7BW125 to SF10BW125
--)))
--
--(((
--922.6 - SF7BW125 to SF10BW125
--)))
--
--(((
--922.8 - SF7BW125 to SF10BW125
--)))
--
--(((
--923.0 - SF7BW125 to SF10BW125
--)))
--
--(((
--922.0 - SF7BW125 to SF10BW125
--)))
--
--(((
--
--)))
--
--(((
--(% style="color:blue" %)**AS923 ~~ AS925 for Brunei, Cambodia, Hong Kong, Indonesia, Laos, Taiwan, Thailand, Vietnam**:
--)))
--
--(((
--923.6 - SF7BW125 to SF10BW125
--)))
--
--(((
--923.8 - SF7BW125 to SF10BW125
--)))
--
--(((
--924.0 - SF7BW125 to SF10BW125
--)))
--
--(((
--924.2 - SF7BW125 to SF10BW125
--)))
--
--(((
--924.4 - SF7BW125 to SF10BW125
--)))
--
--(((
--924.6 - SF7BW125 to SF10BW125
--)))
--
--(((
--
--)))
--
--(((
--(% style="color:blue" %)**Downlink:**
--)))
--
--(((
--Uplink channels 1-8 (RX1)
--)))
--
--(((
--923.2 - SF10BW125 (RX2)
--)))
--
--
--
--=== 2.6.6  KR920-923 (KR920) ===
--
--(((
--(% style="color:blue" %)**Default channel:**
--)))
--
--(((
--922.1 - SF7BW125 to SF12BW125
--)))
--
--(((
--922.3 - SF7BW125 to SF12BW125
--)))
--
--(((
--922.5 - SF7BW125 to SF12BW125
--)))
--
--(((
--
--)))
--
--(((
--(% style="color:blue" %)**Uplink: (OTAA mode, channel added by JoinAccept message)**
--)))
--
--(((
--922.1 - SF7BW125 to SF12BW125
--)))
--
--(((
--922.3 - SF7BW125 to SF12BW125
--)))
--
--(((
--922.5 - SF7BW125 to SF12BW125
--)))
--
--(((
--922.7 - SF7BW125 to SF12BW125
--)))
--
--(((
--922.9 - SF7BW125 to SF12BW125
--)))
--
--(((
--923.1 - SF7BW125 to SF12BW125
--)))
--
--(((
--923.3 - SF7BW125 to SF12BW125
--)))
--
--(((
--
--)))
--
--(((
--(% style="color:blue" %)**Downlink:**
--)))
--
--(((
--Uplink channels 1-7(RX1)
--)))
--
--(((
--921.9 - SF12BW125 (RX2 downlink only; SF12BW125 might be changed to SF9BW125)
--)))
--
--
--
--=== 2.6.7  IN865-867 (IN865) ===
--
--(((
--(% style="color:blue" %)**Uplink:**
--)))
--
--(((
--865.0625 - SF7BW125 to SF12BW125
--)))
--
--(((
--865.4025 - SF7BW125 to SF12BW125
--)))
--
--(((
--865.9850 - SF7BW125 to SF12BW125
--)))
--
--(((
--
--)))
--
--(((
--(% style="color:blue" %)**Downlink:**
--)))
--
--(((
--Uplink channels 1-3 (RX1)
--)))
--
--(((
--866.550 - SF10BW125 (RX2)
--)))
--
--
--
--== 2.7  LED Indicator ==
--
--The LDDS75 has an internal LED which is to show the status of different state.
--
--
  * Blink once when device power on.
  * The device detects the sensor and flashes 5 times.
  * Solid ON for 5 seconds once device successful Join the network.
@@ -934,7 +934,6 @@
--
  == 2.8  Firmware Change Log ==
@@ -955,10 +955,10 @@
  == 2.9  Mechanical ==
--(% aria-label="image-20220610172003-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610172003-1.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220610172003-1.png]]
--(% aria-label="image-20220610172003-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610172003-2.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220610172003-2.png]]
@@ -981,7 +981,7 @@
  [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
  )))
-- (% aria-label="image-20220610172400-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610172400-3.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++ [[image:image-20220610172400-3.png]]
@@ -1083,13 +1083,13 @@
  LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
--(% aria-label="image-20220610172924-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610172924-4.png||data-widget="image" height="483" width="988"]](% style="background:url(~"http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220610172924-4.png||height="483" width="988"]]
  Or if you have below board, use below connection:
--(% aria-label="image-20220610172924-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610172924-5.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220610172924-5.png]]
  (((
@@ -1097,7 +1097,7 @@
  )))
-- (% aria-label="image-20220610172924-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610172924-6.png||data-widget="image" height="601" width="860"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++ [[image:image-20220610172924-6.png||height="601" width="860"]]
@@ -1107,7 +1107,7 @@
  (% style="color:#037691" %)**AT Command: AT+TDC**
--(% aria-label="image-20220610173409-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610173409-7.png||data-widget="image"]](% style="background:url(~"http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220610173409-7.png]]
  (((
@@ -1137,7 +1137,7 @@
  (% style="color:#037691" %)**Downlink Command: AT+INTMOD**
--(% aria-label="image-20220610174917-9.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220610174917-9.png||data-widget="image"]](% style="background:url(~"http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
++[[image:image-20220610174917-9.png]]
  (% style="color:#037691" %)**Downlink Command: 0x06**
@@ -1151,9 +1151,6 @@
  * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
  * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
--
--
--
  = 4.  FAQ =
  == 4.1  What is the frequency plan for LDDS75? ==

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