Changes for page LA66 LoRaWAN Shield User Manual

Last modified by Xiaoling on 2023/05/26 14:19

From version < 165.5 >

edited by Xiaoling
on 2022/10/10 11:39

To version < 134.8 >

edited by Xiaoling
on 2022/07/26 10:45

Change comment: There is no comment for this version

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Title

@@ -1,1 +1,1 @@
--LA66 LoRaWAN Shield User Manual
++LA66 LoRaWAN Module

Content

@@ -6,14 +6,114 @@
++= 1.  LA66 LoRaWAN Module =
--= 1.  LA66 LoRaWAN Shield =
++== 1.1  What is LA66 LoRaWAN Module ==
--== 1.1  Overview ==
++(((
++(((
++[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)**     **
++)))
  (((
++
++)))
++
++(((
++(% style="color:blue" %)**Dragino LA66**(%%) is a small wireless LoRaWAN module that offers a very compelling mix of long-range, low power consumption, and secure data transmission. It is designed to facilitate developers to quickly deploy industrial-level LoRaWAN and IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to create and connect your things everywhere.
++)))
++)))
++
++(((
++(((
++(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
++)))
++)))
++
++(((
++(((
++Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
++)))
++
++(((
++Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
++)))
++)))
++
++(((
++(((
++LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
++)))
++)))
++
++
++
++== 1.2  Features ==
++
++* Support LoRaWAN v1.0.4 protocol
++* Support peer-to-peer protocol
++* TCXO crystal to ensure RF performance on low temperature
++* SMD Antenna pad and i-pex antenna connector
++* Available in different frequency LoRaWAN frequency bands.
++* World-wide unique OTAA keys.
++* AT Command via UART-TTL interface
++* Firmware upgradable via UART interface
++* Ultra-long RF range
++
++== 1.3  Specification ==
++
++* CPU: 32-bit 48 MHz
++* Flash: 256KB
++* RAM: 64KB
++* Input Power Range: 1.8v ~~ 3.7v
++* Power Consumption: < 4uA.
++* Frequency Range: 150 MHz ~~ 960 MHz
++* Maximum Power +22 dBm constant RF output
++* High sensitivity: -148 dBm
++* Temperature:
++** Storage: -55 ~~ +125℃
++** Operating: -40 ~~ +85℃
++* Humidity:
++** Storage: 5 ~~ 95% (Non-Condensing)
++** Operating: 10 ~~ 95% (Non-Condensing)
++* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
++* LoRa Rx current: <9 mA
++* I/O Voltage: 3.3v
++
++== 1.4  AT Command ==
++
++
++AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
++
++
++
++== 1.5  Dimension ==
++
++[[image:image-20220718094750-3.png]]
++
++
++
++== 1.6  Pin Mapping ==
++
++[[image:image-20220720111850-1.png]]
++
++
++
++== 1.7  Land Pattern ==
++
++[[image:image-20220517072821-2.png]]
++
++
++
++= 2.  LA66 LoRaWAN Shield =
++
++
++== 2.1  Overview ==
++
++
++(((
  [[image:image-20220715000826-2.png||height="145" width="220"]]
  )))
@@ -51,11 +51,10 @@
--== 1.2  Features ==
++== 2.2  Features ==
--
  * Arduino Shield base on LA66 LoRaWAN module
--* Support LoRaWAN v1.0.3 protocol
++* Support LoRaWAN v1.0.4 protocol
  * Support peer-to-peer protocol
  * TCXO crystal to ensure RF performance on low temperature
  * SMA connector
@@ -65,11 +65,8 @@
  * Firmware upgradable via UART interface
  * Ultra-long RF range
++== 2.3  Specification ==
--
--== 1.3  Specification ==
--
--
  * CPU: 32-bit 48 MHz
  * Flash: 256KB
  * RAM: 64KB
@@ -88,27 +88,18 @@
  * LoRa Rx current: <9 mA
  * I/O Voltage: 3.3v
++== 2.4  LED ==
--== 1.4  Pin Mapping & LED ==
--
--
--[[image:image-20220817085048-1.png||height="533" width="734"]]
--
--
--
  ~1. The LED lights up red when there is an upstream data packet
 . When the network is successfully connected, the green light will be on for 5 seconds
 . Purple light on when receiving downlink data packets
--[[image:image-20220820112305-1.png||height="515" width="749"]]
++== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
--== 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
--
--
  **Show connection diagram：**
@@ -129,17 +129,11 @@
  LA66-LoRaWAN-shield-AT-command-via-Arduino-UNO source code link: [[https:~~/~~/www.dropbox.com/sh/cx0pspkwu62pr97/AAAbKh2ioPdZfSDtdDpooYqha?dl=0>>https://www.dropbox.com/sh/cx0pspkwu62pr97/AAAbKh2ioPdZfSDtdDpooYqha?dl=0]]
--[[image:image-20220726135239-1.png]]
--
--
  (% style="color:blue" %)**3.  Click the button marked 1 in the figure to compile, and after the compilation is complete, click the button marked 2 in the figure to upload**
--[[image:image-20220726135356-2.png]]
--
--
  (% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
@@ -147,7 +147,7 @@
--== 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
++== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
  (% style="color:blue" %)**1.  Open project**
@@ -160,7 +160,7 @@
--(% style="color:blue" %)**2.  Same steps as 1.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
++(% style="color:blue" %)**2.  Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
  [[image:image-20220723172938-9.png||height="652" width="1050"]]
@@ -167,7 +167,7 @@
--== 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
++== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
  (% style="color:blue" %)**1.  Open project**
@@ -187,259 +187,447 @@
++(% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
++For the usage of Node-RED, please refer to: [[http:~~/~~/8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/>>http://8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/]]
--(% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
++[[image:image-20220723175700-12.png||height="602" width="995"]]
--For the usage of Node-RED, please refer to: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Node-RED/>>http://wiki.dragino.com/xwiki/bin/view/Main/Node-RED/]]
++== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
--[[image:image-20220723175700-12.png||height="602" width="995"]]
++=== 2.8.1  Items needed for update ===
--== 1.8  Example: How to join helium ==
++1. LA66 LoRaWAN Shield
++1. Arduino
++1. USB TO TTL Adapter
++[[image:image-20220602100052-2.png||height="385" width="600"]]
--(% style="color:blue" %)**1.  Create a new device.**
++=== 2.8.2  Connection ===
--[[image:image-20220907165500-1.png||height="464" width="940"]]
++[[image:image-20220602101311-3.png||height="276" width="600"]]
--(% style="color:blue" %)**2.  Save the device after filling in the necessary information.**
++(((
++(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
++)))
++(((
++(% style="background-color:yellow" %)**GND                                <-> GND
++TXD                                 <->  TXD
++RXD                                 <->  RXD**
++)))
--[[image:image-20220907165837-2.png||height="375" width="809"]]
++Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
++Connect USB TTL Adapter to PC after connecting the wires
--(% style="color:blue" %)**3.  Use AT commands.**
++[[image:image-20220602102240-4.png||height="304" width="600"]]
--[[image:image-20220602100052-2.png||height="385" width="600"]]
++=== 2.8.3  Upgrade steps ===
--(% style="color:#0000ff" %)**4.  Use command AT+CFG to get device configuration**
++==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
--[[image:image-20220907170308-3.png||height="556" width="617"]]
++[[image:image-20220602102824-5.png||height="306" width="600"]]
--(% style="color:blue" %)**5.  Network successfully.**
++==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
--[[image:image-20220907170436-4.png]]
++[[image:image-20220602104701-12.png||height="285" width="600"]]
--(% style="color:blue" %)**6.  Send uplink using command**
++==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
--[[image:image-20220912084334-1.png]]
++(((
++(% style="color:blue" %)**1. Software download link:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/>>https://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/]]**
++)))
--[[image:image-20220912084412-3.png]]
++[[image:image-20220602103227-6.png]]
++[[image:image-20220602103357-7.png]]
--[[image:image-20220907170744-6.png||height="242" width="798"]]
++(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
++(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
--== 1.9  Upgrade Firmware of LA66 LoRaWAN Shield ==
++[[image:image-20220602103844-8.png]]
--=== 1.9.1  Items needed for update ===
--1. LA66 LoRaWAN Shield
--1. Arduino
--1. USB TO TTL Adapter
++(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
++(% style="color:blue" %)**3. Select the bin file to burn**
--[[image:image-20220602100052-2.png||height="385" width="600"]]
++[[image:image-20220602104144-9.png]]
--=== 1.9.2  Connection ===
++[[image:image-20220602104251-10.png]]
--[[image:image-20220602101311-3.png||height="276" width="600"]]
++[[image:image-20220602104402-11.png]]
++
++(% class="wikigeneratedid" id="HClicktostartthedownload" %)
++(% style="color:blue" %)**4. Click to start the download**
++
++[[image:image-20220602104923-13.png]]
++
++
++
++(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
++(% style="color:blue" %)**5. Check update process**
++
++
++[[image:image-20220602104948-14.png]]
++
++
++
++(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
++(% style="color:blue" %)**The following picture shows that the burning is successful**
++
++[[image:image-20220602105251-15.png]]
++
++
++
++= 3.  LA66 USB LoRaWAN Adapter =
++
++
++== 3.1  Overview ==
++
++
++[[image:image-20220715001142-3.png||height="145" width="220"]]
++
++
  (((
--(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
++(% style="color:blue" %)**LA66 USB LoRaWAN Adapter**(%%) is designed to fast turn USB devices to support LoRaWAN wireless features. It combines a CP2101 USB TTL Chip and LA66 LoRaWAN module which can easy to add LoRaWAN wireless feature to PC / Mobile phone or an embedded device that has USB Interface.
  )))
  (((
--(% style="background-color:yellow" %)**GND                                <-> GND
--TXD                                 <->  TXD
--RXD                                 <->  RXD**
++(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
  )))
++(((
++Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
++)))
--Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
++(((
++Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
++)))
--Connect USB TTL Adapter to PC after connecting the wires
++(((
++LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
++)))
--[[image:image-20220602102240-4.png||height="304" width="600"]]
++== 3.2  Features ==
++* LoRaWAN USB adapter base on LA66 LoRaWAN module
++* Ultra-long RF range
++* Support LoRaWAN v1.0.4 protocol
++* Support peer-to-peer protocol
++* TCXO crystal to ensure RF performance on low temperature
++* Spring RF antenna
++* Available in different frequency LoRaWAN frequency bands.
++* World-wide unique OTAA keys.
++* AT Command via UART-TTL interface
++* Firmware upgradable via UART interface
++* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
--=== 1.9.3  Upgrade steps ===
++== 3.3  Specification ==
++* CPU: 32-bit 48 MHz
++* Flash: 256KB
++* RAM: 64KB
++* Input Power Range: 5v
++* Frequency Range: 150 MHz ~~ 960 MHz
++* Maximum Power +22 dBm constant RF output
++* High sensitivity: -148 dBm
++* Temperature:
++** Storage: -55 ~~ +125℃
++** Operating: -40 ~~ +85℃
++* Humidity:
++** Storage: 5 ~~ 95% (Non-Condensing)
++** Operating: 10 ~~ 95% (Non-Condensing)
++* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
++* LoRa Rx current: <9 mA
++== 3.4  Pin Mapping & LED ==
--==== (% style="color:blue" %)**1.  Switch SW1 to put in ISP position**(%%) ====
--[[image:image-20220602102824-5.png||height="306" width="600"]]
++== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
++(((
++Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
++)))
--==== (% style="color:blue" %)**2.  Press the RST switch once**(%%) ====
++(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
--[[image:image-20220817085447-1.png]]
++[[image:image-20220723100027-1.png]]
++Open the serial port tool
++[[image:image-20220602161617-8.png]]
--==== (% style="color:blue" %)**3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade**(%%) ====
++[[image:image-20220602161718-9.png||height="457" width="800"]]
--(((
--(% style="color:blue" %)**1.  Software download link:  **(%%)**[[https:~~/~~/www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0>>https://www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0]]**
--)))
++(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
++The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
--[[image:image-20220602103227-6.png]]
++[[image:image-20220602161935-10.png||height="498" width="800"]]
--[[image:image-20220602103357-7.png]]
++(% style="color:blue" %)**3. See Uplink Command**
--(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
--(% style="color:blue" %)**2.  Select the COM port corresponding to USB TTL**
++Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
++example: AT+SENDB=01,02,8,05820802581ea0a5
--[[image:image-20220602103844-8.png]]
++[[image:image-20220602162157-11.png||height="497" width="800"]]
--(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
--(% style="color:blue" %)**3.  Select the bin file to burn**
++(% style="color:blue" %)**4. Check to see if TTN received the message**
++[[image:image-20220602162331-12.png||height="420" width="800"]]
--[[image:image-20220602104144-9.png]]
--[[image:image-20220602104251-10.png]]
++== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
--[[image:image-20220602104402-11.png]]
++**Use python as an example：**[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py]]
++(**Raspberry Pi example: **[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py]])
++(% style="color:red" %)**Preconditions:**
--(% class="wikigeneratedid" id="HClicktostartthedownload" %)
--(% style="color:blue" %)**4.  Click to start the download**
++(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
++(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
--[[image:image-20220602104923-13.png]]
++(% style="color:blue" %)**Steps for usage:**
--(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
--(% style="color:blue" %)**5.  Check update process**
++(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
++(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
--[[image:image-20220602104948-14.png]]
++[[image:image-20220602115852-3.png||height="450" width="1187"]]
--(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
--(% style="color:blue" %)**The following picture shows that the burning is successful**
++== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
--[[image:image-20220602105251-15.png]]
++Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
++(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
--= 2.  FAQ =
++[[image:image-20220723100439-2.png]]
--== 2.1  How to Compile Source Code for LA66? ==
++(% style="color:blue" %)**2. Install Minicom in RPi.**
--Compile and Upload Code to ASR6601 Platform ：[[Instruction>>Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Module.Compile and Upload Code to ASR6601 Platform.WebHome]]
++(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
++ (% style="background-color:yellow" %)**apt update**
++ (% style="background-color:yellow" %)**apt install minicom**
--== 2.2  Where to find Peer-to-Peer firmware of LA66? ==
++Use minicom to connect to the RPI's terminal
--Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:.Instruction for LA66 Peer to Peer firmware.WebHome]]
++[[image:image-20220602153146-3.png||height="439" width="500"]]
--= 3.  Order Info =
++(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
++The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
--**Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
++[[image:image-20220602154928-5.png||height="436" width="500"]]
--(% style="color:blue" %)**XXX**(%%): The default frequency band
--* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
--* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
--* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
--* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
--* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
--* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
--* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
--* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
--* (% style="color:red" %)**PP**(%%):        Peer to Peer LoRa Protocol
++(% style="color:blue" %)**4. Send Uplink message**
++Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
--= 4.  Reference =
++example: AT+SENDB=01,02,8,05820802581ea0a5
--* Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
++[[image:image-20220602160339-6.png||height="517" width="600"]]
--= 5.  FCC Statement =
++Check to see if TTN received the message
++[[image:image-20220602160627-7.png||height="369" width="800"]]
--(% style="color:red" %)**FCC Caution:**
--Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
--This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
++== 3.8  Example: Use of LA66 USB LoRaWAN Adapter and APP sample process and DRAGINO-LA66-APP. ==
--(% style="color:red" %)**IMPORTANT NOTE: **
++=== 3.8.1 DRAGINO-LA66-APP ===
--(% style="color:red" %)**Note:**(%%) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
--—Reorient or relocate the receiving antenna.
++[[image:image-20220723102027-3.png]]
--—Increase the separation between the equipment and receiver.
--—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
--—Consult the dealer or an experienced radio/TV technician for help.
++==== (% style="color:blue" %)**Overview：**(%%) ====
--(% style="color:red" %)**FCC Radiation Exposure Statement: **
++DRAGINO-LA66-APP is a mobile APP for LA66 USB LoRaWAN Adapter and APP sample process. DRAGINO-LA66-APP can obtain the positioning information of the mobile phone and send it to the LoRaWAN platform through the LA66 USB LoRaWAN Adapter.
--This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
++View the communication signal strength between the node and the gateway through the RSSI value（DRAGINO-LA66-APP currently only supports Android system）
++
++
++
++==== (% style="color:blue" %)**Conditions of Use：**(%%) ====
++
++
++Requires a type-c to USB adapter
++
++[[image:image-20220723104754-4.png]]
++
++
++
++==== (% style="color:blue" %)**Use of APP:**(%%) ====
++
++
++Function and page introduction
++
++[[image:image-20220723113448-7.png||height="1481" width="670"]]
++
++1.Display LA66 USB LoRaWAN Module connection status
++
++2.Check and reconnect
++
++3.Turn send timestamps on or off
++
++4.Display LoRaWan connection status
++
++5.Check LoRaWan connection status
++
++6.The RSSI value of the node when the ACK is received
++
++7.Node's Signal Strength Icon
++
++8.Set the packet sending interval of the node in seconds
++
++9.AT command input box
++
++10.Send AT command button
++
++11.Node log box
++
++12.clear log button
++
++13.exit button
++
++
++LA66 USB LoRaWAN Module not connected
++
++[[image:image-20220723110520-5.png||height="903" width="677"]]
++
++
++
++Connect LA66 USB LoRaWAN Module
++
++[[image:image-20220723110626-6.png||height="906" width="680"]]
++
++
++
++=== 3.8.2  Use DRAGINO-LA66-APP to obtain positioning information and send it to TTNV3 through LA66 USB LoRaWAN Adapter and integrate it into Node-RED ===
++
++
++(% style="color:blue" %)**1.  Register LA66 USB LoRaWAN Module to TTNV3**
++
++[[image:image-20220723134549-8.png]]
++
++
++
++(% style="color:blue" %)**2.  Open Node-RED,And import the JSON file to generate the flow**
++
++Sample JSON file please go to this link to download：放置JSON文件的链接
++
++For the usage of Node-RED, please refer to: [[http:~~/~~/8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/>>http://8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/]]
++
++The following is the positioning effect map
++
++[[image:image-20220723144339-1.png]]
++
++
++
++== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
++
++
++The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method
++
++Just use the yellow jumper cap to short the BOOT corner and the RX corner, and then press the RESET button (without the jumper cap, you can directly short the BOOT corner and the RX corner with a wire to achieve the same effect)
++
++[[image:image-20220723150132-2.png]]
++
++
++
++= 4.  Order Info =
++
++
++**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)  **or**   (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
++
++
++(% style="color:blue" %)**XXX**(%%): The default frequency band
++
++* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
++* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
++* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
++* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
++* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
++* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
++* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
++* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
++* (% style="color:red" %)**PP**(%%):        Peer to Peer LoRa Protocol
++
++
++
++= 5.  Reference =
++
++
++* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]

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