Changes for page LA66 USB LoRaWAN Adapter User Manual
Last modified by Mengting Qiu on 2024/04/01 17:22
Change comment:
There is no comment for this version
Summary
-
Page properties (3 modified, 0 added, 0 removed)
-
Attachments (0 modified, 43 added, 0 removed)
- image-20220715001142-3.png
- image-20220718094030-1.png
- image-20220718094138-2.png
- image-20220718094750-3.png
- image-20220718094950-4.png
- image-20220718095457-5.png
- image-20220719093156-1.png
- image-20220719093358-2.png
- image-20220720111850-1.png
- image-20220723100027-1.png
- image-20220723100439-2.png
- image-20220723102027-3.png
- image-20220723104754-4.png
- image-20220723110520-5.png
- image-20220723110626-6.png
- image-20220723113448-7.png
- image-20220723134549-8.png
- image-20220723144339-1.png
- image-20220723150132-2.png
- image-20220723165950-1.jpeg
- image-20220723170210-2.png
- image-20220723170545-4.png
- image-20220723170750-5.png
- image-20220723171228-6.png
- image-20220723172235-7.png
- image-20220723172502-8.png
- image-20220723172938-9.png
- image-20220723173341-10.png
- image-20220723173950-11.png
- image-20220723175700-12.png
- image-20220726135239-1.png
- image-20220726135356-2.png
- image-20220813173738-1.png
- image-20220813174353-2.png
- image-20220813183239-3.png
- image-20220814101457-1.png
- image-20220817084245-1.png
- image-20220817084532-1.jpeg
- image-20220817093644-1.png
- image-20220909151441-1.jpeg
- image-20220909151517-2.png
- image-20220912085244-1.png
- image-20220912085307-2.png
Details
- Page properties
-
- Title
-
... ... @@ -1,1 +1,1 @@ 1 -LA66 LoRaWAN Module1 +LA66 USB LoRaWAN Adapter User Manual - Author
-
... ... @@ -1,1 +1,1 @@ 1 -XWiki. Edwin1 +XWiki.Bei - Content
-
... ... @@ -6,20 +6,22 @@ 6 6 7 7 8 8 9 -= 1. LA66 LoRaWAN Module = 10 10 11 11 12 -= =1.1What isLA66 LoRaWANModule ==11 += 1. LA66 USB LoRaWAN Adapter = 13 13 13 +== 1.1 Overview == 14 14 15 -((( 16 -[[image:image-20220715000242-1.png||height="110" width="132"]] 17 17 18 -(% 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. 16 +[[image:image-20220715001142-3.png||height="145" width="220"]] 17 + 18 + 19 +((( 20 +(% 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. 19 19 ))) 20 20 21 21 ((( 22 -(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0. 4protocol**(%%). 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.24 +(% 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. 23 23 ))) 24 24 25 25 ((( ... ... @@ -37,23 +37,27 @@ 37 37 38 38 == 1.2 Features == 39 39 42 + 43 +* LoRaWAN USB adapter base on LA66 LoRaWAN module 44 +* Ultra-long RF range 40 40 * Support LoRaWAN v1.0.4 protocol 41 41 * Support peer-to-peer protocol 42 42 * TCXO crystal to ensure RF performance on low temperature 43 -* S MD Antennapad andi-pexantennaconnector48 +* Spring RF antenna 44 44 * Available in different frequency LoRaWAN frequency bands. 45 45 * World-wide unique OTAA keys. 46 46 * AT Command via UART-TTL interface 47 47 * Firmware upgradable via UART interface 48 -* Ultra-longRFrange53 +* Open Source Mobile App for LoRaWAN signal detect and GPS tracking. 49 49 55 + 50 50 == 1.3 Specification == 51 51 58 + 52 52 * CPU: 32-bit 48 MHz 53 53 * Flash: 256KB 54 54 * RAM: 64KB 55 -* Input Power Range: 1.8v ~~ 3.7v 56 -* Power Consumption: < 4uA. 62 +* Input Power Range: 5v 57 57 * Frequency Range: 150 MHz ~~ 960 MHz 58 58 * Maximum Power +22 dBm constant RF output 59 59 * High sensitivity: -148 dBm ... ... @@ -65,411 +65,391 @@ 65 65 ** Operating: 10 ~~ 95% (Non-Condensing) 66 66 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 67 67 * LoRa Rx current: <9 mA 68 -* I/O Voltage: 3.3v 69 69 70 -== 1.4 AT Command == 71 71 72 - ATCommandis valid over MainTXD andMainRXD.Serial Baud Rate is 9600. AT commands can be found in AT Command documents.76 +== 1.4 Pin Mapping & LED == 73 73 74 74 75 - == 1.5 Dimension ==79 +[[image:image-20220813183239-3.png||height="526" width="662"]] 76 76 77 -[[image:image-20220517072526-1.png]] 78 78 82 +== 1.5 Example: Send & Get Messages via LoRaWAN in PC == 79 79 80 80 81 -== 1.6 Pin Mapping == 85 +((( 86 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage. 87 +))) 82 82 83 83 84 - [[image:image-20220523101537-1.png]]90 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC** 85 85 86 86 93 +[[image:image-20220723100027-1.png]] 87 87 88 -== 1.7 Land Pattern == 89 89 90 - [[image:image-20220517072821-2.png]]96 +Open the serial port tool 91 91 98 +[[image:image-20220602161617-8.png]] 92 92 93 93 94 - =2. LA66LoRaWAN Shield=101 +[[image:image-20220602161718-9.png||height="457" width="800"]] 95 95 96 96 97 -== 2.1 Overview == 98 98 105 +(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.** 99 99 100 -[[image:image-20220715000826-2.png||height="386" width="449"]] 101 101 108 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network 102 102 103 -LA66 LoRaWAN Shield is the Arduino shield base on LA66. Users can use LA66 LoRaWAN Shield to rapidly add LoRaWAN or peer-to-peer LoRa wireless function to Arduino projects. 104 104 105 -((( 106 -(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.4 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. 107 -))) 111 +[[image:image-20220602161935-10.png||height="498" width="800"]] 108 108 109 -((( 110 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration. 111 -))) 112 112 113 -((( 114 -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. 115 -))) 116 116 117 -((( 118 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures. 119 -))) 115 +(% style="color:blue" %)**3. See Uplink Command** 120 120 121 121 122 - ==2.2Features ==118 +Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 123 123 124 -* Arduino Shield base on LA66 LoRaWAN module 125 -* Support LoRaWAN v1.0.4 protocol 126 -* Support peer-to-peer protocol 127 -* TCXO crystal to ensure RF performance on low temperature 128 -* SMA connector 129 -* Available in different frequency LoRaWAN frequency bands. 130 -* World-wide unique OTAA keys. 131 -* AT Command via UART-TTL interface 132 -* Firmware upgradable via UART interface 133 -* Ultra-long RF range 120 +example: AT+SENDB=01,02,8,05820802581ea0a5 134 134 135 - ==2.3 Specification==122 +[[image:image-20220602162157-11.png||height="497" width="800"]] 136 136 137 -* CPU: 32-bit 48 MHz 138 -* Flash: 256KB 139 -* RAM: 64KB 140 -* Input Power Range: 1.8v ~~ 3.7v 141 -* Power Consumption: < 4uA. 142 -* Frequency Range: 150 MHz ~~ 960 MHz 143 -* Maximum Power +22 dBm constant RF output 144 -* High sensitivity: -148 dBm 145 -* Temperature: 146 -** Storage: -55 ~~ +125℃ 147 -** Operating: -40 ~~ +85℃ 148 -* Humidity: 149 -** Storage: 5 ~~ 95% (Non-Condensing) 150 -** Operating: 10 ~~ 95% (Non-Condensing) 151 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 152 -* LoRa Rx current: <9 mA 153 -* I/O Voltage: 3.3v 154 154 155 -== 2.4 Pin Mapping & LED == 156 156 126 +(% style="color:blue" %)**4. Check to see if TTN received the message** 157 157 158 158 159 - == 2.5 Example:Use AT Command to communicatewith LA66 module via Arduino UNO.==129 +[[image:image-20220817093644-1.png]] 160 160 161 161 132 +== 1.6 Example: How to join helium == 162 162 163 -== 2.6 Example: Join TTN network and send an uplink message, get downlink message. == 164 164 165 165 136 +(% style="color:blue" %)**1. Create a new device.** 166 166 167 -== 2.7 Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. == 168 168 139 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907165500-1.png?width=940&height=464&rev=1.1||alt="image-20220907165500-1.png"]] 169 169 170 170 171 -== 2.8 Upgrade Firmware of LA66 LoRaWAN Shield == 172 172 143 +(% style="color:blue" %)**2. Save the device after filling in the necessary information.** 173 173 174 -=== 2.8.1 Items needed for update === 175 175 176 -1. LA66 LoRaWAN Shield 177 -1. Arduino 178 -1. USB TO TTL Adapter 146 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907165837-2.png?width=809&height=375&rev=1.1||alt="image-20220907165837-2.png" height="375" width="809"]] 179 179 180 180 181 -[[image:image-20220602100052-2.png||height="385" width="600"]] 182 182 150 +(% style="color:blue" %)**3. Use AT commands.** 183 183 184 -=== 2.8.2 Connection === 185 185 153 +[[image:image-20220909151441-1.jpeg||height="695" width="521"]] 186 186 187 -[[image:image-20220602101311-3.png||height="276" width="600"]] 188 188 189 189 190 -((( 191 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%) **<->** (% style="color:blue" %)**USB TTL** 192 -))) 157 +(% style="color:blue" %)**4. Use the serial port tool** 193 193 194 -((( 195 -(% style="background-color:yellow" %)**GND <-> GND 196 -TXD <-> TXD 197 -RXD <-> RXD** 198 -))) 199 199 160 +[[image:image-20220909151517-2.png||height="543" width="708"]] 200 200 201 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module) 202 202 203 -Connect USB TTL Adapter to PC after connecting the wires 204 204 164 +(% style="color:blue" %)**5. Use command AT+CFG to get device configuration** 205 205 206 -[[image:image-20220602102240-4.png||height="304" width="600"]] 207 207 167 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907170308-3.png?width=617&height=556&rev=1.1||alt="image-20220907170308-3.png" height="556" width="617"]] 208 208 209 -=== 2.8.3 Upgrade steps === 210 210 211 211 212 - ====1. Switch SW1 toputinISP position====171 +(% style="color:blue" %)**6. Network successfully.** 213 213 214 214 215 -[[image:i mage-20220602102824-5.png||height="306" width="600"]]174 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907170436-4.png?rev=1.1||alt="image-20220907170436-4.png"]] 216 216 217 217 218 218 219 - ====2. PresstheRSTswitchonce ====178 +(% style="color:blue" %)**7. Send uplink using command** 220 220 221 221 222 -[[image:image-20220 602104701-12.png||height="285" width="600"]]181 +[[image:image-20220912085244-1.png]] 223 223 224 224 184 +[[image:image-20220912085307-2.png]] 225 225 226 -==== 3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ==== 227 227 228 228 229 -((( 230 -(% 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/]]** 231 -))) 188 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907170744-6.png?width=798&height=242&rev=1.1||alt="image-20220907170744-6.png" height="242" width="798"]] 232 232 233 233 234 - [[image:image-20220602103227-6.png]]191 +== 1.7 Example: Send PC's CPU/RAM usage to TTN via python == 235 235 236 236 237 -[[image:imag e-20220602103357-7.png]]194 +**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]] 238 238 196 +(**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]]) 239 239 240 240 241 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %) 242 -(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL** 199 +(% style="color:red" %)**Preconditions:** 243 243 201 +(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine** 244 244 245 - [[image:image-20220602103844-8.png]]203 +(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter is registered with TTN** 246 246 247 247 248 248 249 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %) 250 -(% style="color:blue" %)**3. Select the bin file to burn** 207 +(% style="color:blue" %)**Steps for usage:** 251 251 209 +(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter 252 252 253 -[[imag e:image-20220602104144-9.png]]211 +(% style="color:blue" %)**2.**(%%) Add [[decoder>>https://github.com/dragino/dragino-end-node-decoder/tree/main/LA66%20USB]] on TTN 254 254 213 +(% style="color:blue" %)**3.**(%%) Run the python script in PC and see the TTN 255 255 256 -[[image:image-20220602104251-10.png]] 257 257 216 +[[image:image-20220602115852-3.png||height="450" width="1187"]] 258 258 259 -[[image:image-20220602104402-11.png]] 260 260 219 +== 1.8 Example: Send & Get Messages via LoRaWAN in RPi == 261 261 262 262 263 -(% class="wikigeneratedid" id="HClicktostartthedownload" %) 264 -(% style="color:blue" %)**4. Click to start the download** 222 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage. 265 265 266 -[[image:image-20220602104923-13.png]] 267 267 225 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi** 268 268 269 269 270 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %) 271 -(% style="color:blue" %)**5. Check update process** 228 +[[image:image-20220723100439-2.png]] 272 272 273 273 274 -[[image:image-20220602104948-14.png]] 275 275 232 +(% style="color:blue" %)**2. Install Minicom in RPi.** 276 276 277 277 278 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %) 279 -(% style="color:blue" %)**The following picture shows that the burning is successful** 235 +(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal 280 280 281 - [[image:image-20220602105251-15.png]]237 + (% style="background-color:yellow" %)**apt update** 282 282 239 + (% style="background-color:yellow" %)**apt install minicom** 283 283 284 284 285 - =3.LA66USBLoRaWANAdapter=242 +Use minicom to connect to the RPI's terminal 286 286 244 +[[image:image-20220602153146-3.png||height="439" width="500"]] 287 287 288 -== 3.1 Overview == 289 289 290 -(% 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. 291 291 292 -(% style="color:blue" %)** LA66**(%%)is aready-to-use module that includes the(% style="color:blue" %)**LoRaWAN v1.0.4 protocol**(%%). The LoRaWANstack used in LA66 is used in morethan1 million LoRaWAN End Devicesdeployedworld widely. This mature LoRaWAN stack greatly reduces therisk to make stable LoRaWANSensorstosupport differentLoRaWAN servers and differentcountries'standards. External MCU can use AT command to callLA66andstart to transmit data via theLoRaWAN protocol.248 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.** 293 293 294 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration. 295 295 296 - Besidesthesupport ofthe LoRaWANprotocol, LA66also supports (% style="color:blue"%)**open-sourcepeer-to-peerLoRa Protocol**(%%) for the none-LoRaWAN application.251 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network. 297 297 298 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures. 299 299 254 +[[image:image-20220602154928-5.png||height="436" width="500"]] 300 300 301 -== 3.2 Features == 302 302 303 -* LoRaWAN USB adapter base on LA66 LoRaWAN module 304 -* Ultra-long RF range 305 -* Support LoRaWAN v1.0.4 protocol 306 -* Support peer-to-peer protocol 307 -* TCXO crystal to ensure RF performance on low temperature 308 -* Spring RF antenna 309 -* Available in different frequency LoRaWAN frequency bands. 310 -* World-wide unique OTAA keys. 311 -* AT Command via UART-TTL interface 312 -* Firmware upgradable via UART interface 313 313 314 -= =3.3Specification==258 +(% style="color:blue" %)**4. Send Uplink message** 315 315 316 -* CPU: 32-bit 48 MHz 317 -* Flash: 256KB 318 -* RAM: 64KB 319 -* Input Power Range: 5v 320 -* Frequency Range: 150 MHz ~~ 960 MHz 321 -* Maximum Power +22 dBm constant RF output 322 -* High sensitivity: -148 dBm 323 -* Temperature: 324 -** Storage: -55 ~~ +125℃ 325 -** Operating: -40 ~~ +85℃ 326 -* Humidity: 327 -** Storage: 5 ~~ 95% (Non-Condensing) 328 -** Operating: 10 ~~ 95% (Non-Condensing) 329 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 330 -* LoRa Rx current: <9 mA 331 331 332 - ==3.4PinMapping & LED ==261 +Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 333 333 263 +example: AT+SENDB=01,02,8,05820802581ea0a5 334 334 335 335 336 - == 3.5 Example:Send & Get Messages viaLoRaWANin PC==266 +[[image:image-20220602160339-6.png||height="517" width="600"]] 337 337 338 338 339 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage. 340 340 270 +Check to see if TTN received the message 341 341 342 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC** 343 343 273 +[[image:image-20220602160627-7.png||height="369" width="800"]] 344 344 345 -[[image:image-20220602171217-1.png||height="538" width="800"]] 346 346 276 +== 1.9 Example: Use of LA66 USB LoRaWAN Adapter and mobile APP == 347 347 348 - Opentheserialport tool278 +=== 1.9.1 Hardware and Software Connection === 349 349 350 -[[image:image-20220602161617-8.png]] 351 351 352 -[[image:image-20220602161718-9.png||height="457" width="800"]] 353 353 282 +==== (% style="color:blue" %)**Overview:**(%%) ==== 354 354 355 355 356 -(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.** 285 +((( 286 +DRAGINO-LA66-APP is an Open Source mobile APP for LA66 USB LoRaWAN Adapter. DRAGINO-LA66-APP has below features: 357 357 358 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network 288 +* Send real-time location information of mobile phone to LoRaWAN network. 289 +* Check LoRaWAN network signal strengh. 290 +* Manually send messages to LoRaWAN network. 291 +))) 359 359 360 360 361 -[[image:image-20220602161935-10.png||height="498" width="800"]] 362 362 363 363 296 +==== (% style="color:blue" %)**Hardware Connection:**(%%) ==== 364 364 365 -(% style="color:blue" %)**3. See Uplink Command** 366 366 367 - Commandformat:(%style="color:#4472c4"%)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**299 +A USB to Type-C adapter is needed to connect to a Mobile phone. 368 368 369 -e xample:AT+SENDB=01,02,8,05820802581ea0a5301 +Note: The package of LA66 USB adapter already includes this USB Type-C adapter. 370 370 371 -[[image:image-20220 602162157-11.png||height="497" width="800"]]303 +[[image:image-20220813174353-2.png||height="360" width="313"]] 372 372 373 373 374 374 375 -(% style="color:blue" %)** 4. Check tosee if TTN receivedthe message**307 +==== (% style="color:blue" %)**Download and Install App:**(%%) ==== 376 376 377 -[[image:image-20220602162331-12.png||height="420" width="800"]] 378 378 310 +[[(% id="cke_bm_895007S" style="display:none" %)** **(%%)**Download Link for Android apk **>>https://www.dropbox.com/sh/zxwx16qb777uvkz/AABE_P8coGCQ4DAC8enH4bUya?dl=0]]. (Android Version Only) 379 379 380 380 381 - == 3.6 Example: Send PC's CPU/RAM usageto TTN viaython==313 +[[image:image-20220813173738-1.png]] 382 382 383 383 384 -**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]] 385 385 317 +==== (% style="color:blue" %)**Use of APP:**(%%) ==== 386 386 387 -(% style="color:red" %)**Preconditions:** 388 388 389 - (% style="color:red"%)**1. LA66 USB LoRaWAN Adapterworks fine**320 +Function and page introduction 390 390 391 -(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter is registered with TTN** 392 392 323 +[[image:image-20220723113448-7.png||height="995" width="450"]] 393 393 394 394 395 - (% style="color:blue" %)**Steps forusage:**326 +**Block Explain:** 396 396 397 - (% style="color:blue" %)**1.**(%%)Pressthe reset switch RESET on theLA66 USB LoRaWANAdapter328 +1. Display LA66 USB LoRaWAN Module connection status 398 398 399 - (% style="color:blue" %)**2.**(%%)Run thepython scriptin PCandseehe TTN330 +2. Check and reconnect 400 400 401 - [[image:image-20220602115852-3.png||height="450"width="1187"]]332 +3. Turn send timestamps on or off 402 402 334 +4. Display LoRaWan connection status 403 403 336 +5. Check LoRaWan connection status 404 404 405 - == 3.7Example:Send& GetMessagesvia LoRaWANinRPi==338 +6. The RSSI value of the node when the ACK is received 406 406 340 +7. Node's Signal Strength Icon 407 407 408 - Assumeuseralreadyinput theLA66 USB LoRaWAN Adapter OTAA KeysinTTN and there is already TTNnetworkcoverage.342 +8. Configure Location Uplink Interval 409 409 344 +9. AT command input box 410 410 411 - (%style="color:blue"%)**1.ConnecttheLA66 USBLoRaWAN Adapterto the Raspberry Pi**346 +10. Send Button: Send input box info to LA66 USB Adapter 412 412 413 - [[image:image-20220602171233-2.png||height="538"width="800"]]348 +11. Output Log from LA66 USB adapter 414 414 350 +12. clear log button 415 415 352 +13. exit button 416 416 417 -(% style="color:blue" %)**2. Install Minicom in RPi.** 418 418 419 -(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal 420 420 421 - (%style="background-color:yellow"%)**aptupdate**356 +LA66 USB LoRaWAN Module not connected 422 422 423 - (% style="background-color:yellow" %)**apt install minicom** 424 424 359 +[[image:image-20220723110520-5.png||height="677" width="508"]] 425 425 426 -Use minicom to connect to the RPI's terminal 427 427 428 -[[image:image-20220602153146-3.png||height="439" width="500"]] 429 429 363 +Connect LA66 USB LoRaWAN Module 430 430 431 431 432 - (% style="color:blue" %)**3.Press thereset switchRST onthe LA66USB LoRaWAN Adapter.**366 +[[image:image-20220723110626-6.png||height="681" width="511"]] 433 433 434 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network. 435 435 369 +=== 1.9.2 Send data to TTNv3 and plot location info in Node-Red === 436 436 437 -[[image:image-20220602154928-5.png||height="436" width="500"]] 438 438 372 +(% style="color:blue" %)**1. Register LA66 USB LoRaWAN Module to TTNV3** 439 439 440 440 441 - (% style="color:blue" %)**4.Send Uplink message**375 +[[image:image-20220723134549-8.png]] 442 442 443 -Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 444 444 445 -example: AT+SENDB=01,02,8,05820802581ea0a5 446 446 379 +(% style="color:blue" %)**2. Open Node-RED,And import the JSON file to generate the flow** 447 447 448 -[[image:image-20220602160339-6.png||height="517" width="600"]] 449 449 382 +Sample JSON file please go to **[[this link>>https://www.dropbox.com/sh/zxwx16qb777uvkz/AABE_P8coGCQ4DAC8enH4bUya?dl=0]]** to download. 450 450 384 +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/]] 451 451 452 - Checktosee ifTTNreceived themessage386 +After see LoRaWAN Online, walk around and the APP will keep sending location info to LoRaWAN server and then to the Node Red. 453 453 454 -[[imag e:image-20220602160627-7.png||height="369" width="800"]]388 +LA66~-~-node-red~-~-decoder:[[dragino-end-node-decoder/Node-RED at main · dragino/dragino-end-node-decoder · GitHub>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/Node-RED]] 455 455 456 456 391 +Example output in NodeRed is as below: 457 457 458 - == 3.8 Example:LA66 USB Module got amessagefrom LA66 LoRa Shield and send the sensor data to NodeRed.==393 +[[image:image-20220723144339-1.png]] 459 459 460 460 396 +== 1.10 Upgrade Firmware of LA66 USB LoRaWAN Adapter == 461 461 462 -== 3.9 Upgrade Firmware of LA66 USB LoRaWAN Adapter == 463 463 399 +The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method. 464 464 401 +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). 465 465 403 +(% style="color:red" %)**Notice: If upgrade via USB hub is not sucessful. try to connect to PC directly.** 466 466 467 - = 4. Order Info =405 +[[image:image-20220723150132-2.png]] 468 468 407 +==== ** Open the Upgrade tool (Tremo Programmer) in PC and Upgrade** ==== 469 469 470 -** Part Number:**(%style="color:blue"%)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or** (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**409 +**1. Software download link: [[https:~~/~~/www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0>>url:https://www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0]]** 471 471 411 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602103227-6.png?rev=1.1||alt="image-20220602103227-6.png"]] 472 472 413 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602103357-7.png?rev=1.1||alt="image-20220602103357-7.png"]] 414 + 415 +**2. Select the COM port corresponding to USB TTL** 416 + 417 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602103844-8.png?rev=1.1||alt="image-20220602103844-8.png"]] 418 + 419 +**3. Select the bin file to burn** 420 + 421 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104144-9.png?rev=1.1||alt="image-20220602104144-9.png"]] 422 + 423 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104251-10.png?rev=1.1||alt="image-20220602104251-10.png"]] 424 + 425 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104402-11.png?rev=1.1||alt="image-20220602104402-11.png"]] 426 + 427 +**4. Click to start the download** 428 + 429 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104923-13.png?rev=1.1||alt="image-20220602104923-13.png"]] 430 + 431 +**5. Check update process** 432 + 433 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104948-14.png?rev=1.1||alt="image-20220602104948-14.png"]] 434 + 435 +**The following picture shows that the burning is successful** 436 + 437 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602105251-15.png?rev=1.1||alt="image-20220602105251-15.png"]] 438 + 439 += 2. FAQ = 440 + 441 +== 2.1 How to Compile Source Code for LA66? == 442 + 443 + 444 +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]] 445 + 446 + 447 +== 2.2 Where to find Peer-to-Peer firmware of LA66? == 448 + 449 + 450 +Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.Instruction for LA66 Peer to Peer firmware.WebHome]] 451 + 452 + 453 += 3. Order Info = 454 + 455 + 456 +**Part Number:** (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX** 457 + 458 + 473 473 (% style="color:blue" %)**XXX**(%%): The default frequency band 474 474 475 475 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band ... ... @@ -482,8 +482,39 @@ 482 482 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 483 483 * (% style="color:red" %)**PP**(%%): Peer to Peer LoRa Protocol 484 484 485 -= 5. Reference = 486 486 487 - *HardwareDesign Filefor LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter: [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]472 += 4. Reference = 488 488 474 + 475 +* Hardware Design File for LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]] 476 +* Mobile Phone App Source Code: [[Download>>https://github.com/dragino/LA66_Mobile_App]]. 477 + 478 + 479 += 5. FCC Statement = 480 + 481 + 482 +(% style="color:red" %)**FCC Caution:** 483 + 484 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 485 + 486 +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. 487 + 488 + 489 +(% style="color:red" %)**IMPORTANT NOTE: ** 490 + 491 +(% 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: 492 + 493 +—Reorient or relocate the receiving antenna. 494 + 495 +—Increase the separation between the equipment and receiver. 496 + 497 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. 498 + 499 +—Consult the dealer or an experienced radio/TV technician for help. 500 + 501 + 502 +(% style="color:red" %)**FCC Radiation Exposure Statement: ** 503 + 504 +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. 505 + 489 489
- image-20220715001142-3.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +508.1 KB - Content
- image-20220718094030-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +193.3 KB - Content
- image-20220718094138-2.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +100.3 KB - Content
- image-20220718094750-3.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +97.9 KB - Content
- image-20220718094950-4.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +97.7 KB - Content
- image-20220718095457-5.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +98.0 KB - Content
- image-20220719093156-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +381.2 KB - Content
- image-20220719093358-2.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +649.5 KB - Content
- image-20220720111850-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +380.3 KB - Content
- image-20220723100027-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +1.1 MB - Content
- image-20220723100439-2.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +749.8 KB - Content
- image-20220723102027-3.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +28.7 KB - Content
- image-20220723104754-4.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +231.5 KB - Content
- image-20220723110520-5.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +3.2 MB - Content
- image-20220723110626-6.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +3.6 MB - Content
- image-20220723113448-7.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +298.5 KB - Content
- image-20220723134549-8.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +392.3 KB - Content
- image-20220723144339-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +324.7 KB - Content
- image-20220723150132-2.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +698.8 KB - Content
- image-20220723165950-1.jpeg
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +278.4 KB - Content
- image-20220723170210-2.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +883.0 KB - Content
- image-20220723170545-4.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +31.1 KB - Content
- image-20220723170750-5.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +119.0 KB - Content
- image-20220723171228-6.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +34.2 KB - Content
- image-20220723172235-7.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +262.3 KB - Content
- image-20220723172502-8.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +112.0 KB - Content
- image-20220723172938-9.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +104.8 KB - Content
- image-20220723173341-10.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +117.9 KB - Content
- image-20220723173950-11.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +121.9 KB - Content
- image-20220723175700-12.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +96.4 KB - Content
- image-20220726135239-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +91.4 KB - Content
- image-20220726135356-2.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +45.6 KB - Content
- image-20220813173738-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +13.2 KB - Content
- image-20220813174353-2.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +189.1 KB - Content
- image-20220813183239-3.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +642.4 KB - Content
- image-20220814101457-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +913.4 KB - Content
- image-20220817084245-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +317.6 KB - Content
- image-20220817084532-1.jpeg
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +174.9 KB - Content
- image-20220817093644-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +217.0 KB - Content
- image-20220909151441-1.jpeg
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Bei - Size
-
... ... @@ -1,0 +1,1 @@ 1 +152.4 KB - Content
- image-20220909151517-2.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Bei - Size
-
... ... @@ -1,0 +1,1 @@ 1 +64.3 KB - Content
- image-20220912085244-1.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +1.7 KB - Content
- image-20220912085307-2.png
-
- Author
-
... ... @@ -1,0 +1,1 @@ 1 +XWiki.Xiaoling - Size
-
... ... @@ -1,0 +1,1 @@ 1 +16.7 KB - Content