Version 40.43 by Xiaoling on 2022/06/06 10:21

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Xiaoling 2.2 7 **RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
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Xiaoling 3.2 11 **Table of Contents:**
Xiaoling 1.1 12
Xiaoling 29.5 13 {{toc/}}
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Xiaoling 29.4 18
Xiaoling 3.2 19 = 1.Introduction =
Xiaoling 1.1 20
Xiaoling 3.2 21 == 1.1 What is RS485-BL RS485 to LoRaWAN Converter ==
Xiaoling 1.1 22
Xiaoling 3.2 23 (((
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25 )))
Xiaoling 1.1 26
Xiaoling 3.2 27 (((
Xiaoling 29.15 28 The Dragino RS485-BL is a (% style="color:blue" %)**RS485 / UART to LoRaWAN Converter**(%%) for Internet of Things solutions. User can connect RS485 or UART sensor to RS485-BL converter, and configure RS485-BL to periodically read sensor data and upload via LoRaWAN network to IoT server.
Xiaoling 3.2 29 )))
Xiaoling 2.2 30
Xiaoling 3.2 31 (((
Xiaoling 29.15 32 RS485-BL can interface to RS485 sensor, 3.3v/5v UART sensor or interrupt sensor. RS485-BL provides (% style="color:blue" %)**a 3.3v output**(%%) and** (% style="color:blue" %)a 5v output(%%)** to power external sensors. Both output voltages are controllable to minimize the total system power consumption.
Xiaoling 3.2 33 )))
Xiaoling 2.2 34
Xiaoling 3.2 35 (((
Xiaoling 29.15 36 RS485-BL is IP67 (% style="color:blue" %)**waterproof**(%%) and powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use for several years.
Xiaoling 3.2 37 )))
Xiaoling 2.2 38
Xiaoling 3.2 39 (((
Xiaoling 29.15 40 RS485-BL runs standard (% style="color:blue" %)**LoRaWAN 1.0.3 in Class A**(%%). It can reach long transfer range and easy to integrate with LoRaWAN compatible gateway and IoT server.
Xiaoling 3.2 41 )))
Xiaoling 2.2 42
Xiaoling 3.2 43 (((
Xiaoling 2.2 44 For data uplink, RS485-BL sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-BL will process these returns data according to user-define rules to get the final payload and upload to LoRaWAN server.
Xiaoling 3.2 45 )))
Xiaoling 2.2 46
Xiaoling 3.2 47 (((
Xiaoling 2.2 48 For data downlink, RS485-BL runs in LoRaWAN Class A. When there is downlink commands from LoRaWAN server, RS485-BL will forward the commands from LoRaWAN server to RS485 devices.
Xiaoling 3.2 49 )))
Xiaoling 2.2 50
Xiaoling 3.2 51 (((
Xiaoling 2.2 52 Each RS485-BL pre-load with a set of unique keys for LoRaWAN registration, register these keys to LoRaWAN server and it will auto connect after power on.
Xiaoling 3.2 53 )))
Xiaoling 2.2 54
Xiaoling 6.2 55 [[image:1652953304999-717.png||height="424" width="733"]]
Xiaoling 2.2 56
Xiaoling 29.14 57
58
Xiaoling 3.2 59 == 1.2 Specifications ==
Xiaoling 2.2 60
Xiaoling 29.17 61
Xiaoling 2.2 62 **Hardware System:**
63
64 * STM32L072CZT6 MCU
Xiaoling 6.2 65 * SX1276/78 Wireless Chip 
Xiaoling 2.2 66 * Power Consumption (exclude RS485 device):
67 ** Idle: 6uA@3.3v
68 ** 20dB Transmit: 130mA@3.3v
69
70 **Interface for Model:**
71
72 * 1 x RS485 Interface
73 * 1 x TTL Serial , 3.3v or 5v.
74 * 1 x I2C Interface, 3.3v or 5v.
75 * 1 x one wire interface
76 * 1 x Interrupt Interface
77 * 1 x Controllable 5V output, max
78
79 **LoRa Spec:**
80
81 * Frequency Range:
82 ** Band 1 (HF): 862 ~~ 1020 Mhz
83 ** Band 2 (LF): 410 ~~ 528 Mhz
84 * 168 dB maximum link budget.
85 * +20 dBm - 100 mW constant RF output vs.
86 * Programmable bit rate up to 300 kbps.
87 * High sensitivity: down to -148 dBm.
88 * Bullet-proof front end: IIP3 = -12.5 dBm.
89 * Excellent blocking immunity.
90 * Fully integrated synthesizer with a resolution of 61 Hz.
91 * LoRa modulation.
92 * Built-in bit synchronizer for clock recovery.
93 * Preamble detection.
94 * 127 dB Dynamic Range RSSI.
Xiaoling 3.3 95 * Automatic RF Sense and CAD with ultra-fast AFC. ​​​
Xiaoling 2.2 96
Xiaoling 3.3 97 == 1.3 Features ==
Xiaoling 2.2 98
99 * LoRaWAN Class A & Class C protocol (default Class A)
100 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
101 * AT Commands to change parameters
102 * Remote configure parameters via LoRaWAN Downlink
103 * Firmware upgradable via program port
104 * Support multiply RS485 devices by flexible rules
105 * Support Modbus protocol
106 * Support Interrupt uplink
107
Xiaoling 3.3 108 == 1.4 Applications ==
Xiaoling 2.2 109
110 * Smart Buildings & Home Automation
111 * Logistics and Supply Chain Management
112 * Smart Metering
113 * Smart Agriculture
114 * Smart Cities
115 * Smart Factory
116
Xiaoling 6.2 117 == 1.5 Firmware Change log ==
Xiaoling 2.2 118
Xiaoling 4.2 119 [[RS485-BL Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Firmware/||style="background-color: rgb(255, 255, 255);"]]
Xiaoling 2.2 120
Xiaoling 29.10 121
Xiaoling 4.2 122 == 1.6 Hardware Change log ==
Xiaoling 2.2 123
Xiaoling 4.2 124 (((
Xiaoling 29.18 125
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Xiaoling 40.34 127 (((
Xiaoling 2.2 128 v1.4
Xiaoling 4.2 129 )))
Xiaoling 40.34 130 )))
Xiaoling 2.2 131
Xiaoling 4.2 132 (((
Xiaoling 40.34 133 (((
Xiaoling 2.2 134 ~1. Change Power IC to TPS22916
Xiaoling 4.2 135 )))
Xiaoling 40.34 136 )))
Xiaoling 2.2 137
Xiaoling 40.34 138 (((
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Xiaoling 2.2 141
Xiaoling 4.2 142 (((
Xiaoling 40.34 143 (((
Xiaoling 2.2 144 v1.3
Xiaoling 4.2 145 )))
Xiaoling 40.34 146 )))
Xiaoling 2.2 147
Xiaoling 4.2 148 (((
Xiaoling 40.34 149 (((
Xiaoling 2.2 150 ~1. Change JP3 from KF350-8P to KF350-11P, Add one extra interface for I2C and one extra interface for one-wire
Xiaoling 4.2 151 )))
Xiaoling 40.34 152 )))
Xiaoling 2.2 153
Xiaoling 40.34 154 (((
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Xiaoling 4.2 158 (((
Xiaoling 40.34 159 (((
Xiaoling 2.2 160 v1.2
Xiaoling 4.2 161 )))
Xiaoling 40.34 162 )))
Xiaoling 2.2 163
Xiaoling 4.2 164 (((
Xiaoling 40.34 165 (((
Xiaoling 4.2 166 Release version ​​​​​
Xiaoling 40.34 167 )))
Xiaoling 29.9 168
169
Xiaoling 4.2 170 )))
Xiaoling 2.2 171
Xiaoling 4.2 172 = 2. Pin mapping and Power ON Device =
Xiaoling 2.2 173
Xiaoling 6.2 174 (((
Xiaoling 2.2 175 The RS485-BL is powered on by 8500mAh battery. To save battery life, RS485-BL is shipped with power off. User can put the jumper to power on RS485-BL.
Xiaoling 6.2 176 )))
Xiaoling 2.2 177
Xiaoling 4.2 178 [[image:1652953055962-143.png||height="387" width="728"]]
Xiaoling 2.2 179
180
181 The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
182
Xiaoling 29.8 183
Xiaoling 6.2 184 = 3. Operation Mode =
Xiaoling 2.2 185
Xiaoling 6.2 186 == 3.1 How it works? ==
Xiaoling 2.2 187
Xiaoling 7.2 188 (((
Xiaoling 2.2 189 The RS485-BL is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-BL. It will auto join the network via OTAA.
Xiaoling 29.7 190
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Xiaoling 7.2 192 )))
Xiaoling 2.2 193
Xiaoling 7.2 194 == 3.2 Example to join LoRaWAN network ==
Xiaoling 2.2 195
Xiaoling 6.2 196 Here shows an example for how to join the TTN V3 Network. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here. 
Xiaoling 2.2 197
Xiaoling 7.2 198 [[image:1652953414711-647.png||height="337" width="723"]]
Xiaoling 2.2 199
Xiaoling 15.3 200 (((
Xiaoling 2.2 201 The RS485-BL in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method.
Xiaoling 15.3 202 )))
Xiaoling 2.2 203
Xiaoling 15.3 204 (((
Xiaoling 2.2 205 The LG308 is already set to connect to [[TTN V3 network >>url:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
Xiaoling 15.3 206 )))
Xiaoling 2.2 207
Xiaoling 15.3 208 (((
Xiaoling 2.2 209 **Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-BL.
Xiaoling 15.3 210 )))
Xiaoling 2.2 211
Xiaoling 15.3 212 (((
Xiaoling 2.2 213 Each RS485-BL is shipped with a sticker with unique device EUI:
Xiaoling 15.3 214 )))
Xiaoling 2.2 215
Xiaoling 15.2 216 [[image:1652953462722-299.png]]
Xiaoling 2.2 217
Xiaoling 15.3 218 (((
Xiaoling 2.2 219 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
Xiaoling 15.3 220 )))
Xiaoling 2.2 221
Xiaoling 15.3 222 (((
Xiaoling 2.2 223 Add APP EUI in the application.
Xiaoling 15.3 224 )))
Xiaoling 2.2 225
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Xiaoling 15.2 227 [[image:image-20220519174512-1.png]]
Xiaoling 2.2 228
Xiaoling 15.2 229 [[image:image-20220519174512-2.png||height="328" width="731"]]
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Xiaoling 15.2 231 [[image:image-20220519174512-3.png||height="556" width="724"]]
Xiaoling 2.2 232
Xiaoling 15.2 233 [[image:image-20220519174512-4.png]]
Xiaoling 2.2 234
235 You can also choose to create the device manually.
236
Xiaoling 15.2 237 [[image:1652953542269-423.png||height="710" width="723"]]
Xiaoling 2.2 238
239 Add APP KEY and DEV EUI
240
Xiaoling 15.2 241 [[image:1652953553383-907.png||height="514" width="724"]]
Xiaoling 2.2 242
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Xiaoling 15.2 244 (((
Xiaoling 2.2 245 **Step 2**: Power on RS485-BL and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
Xiaoling 15.2 246 )))
Xiaoling 2.2 247
Xiaoling 15.2 248 [[image:1652953568895-172.png||height="232" width="724"]]
Xiaoling 2.2 249
Xiaoling 29.21 250
Xiaoling 15.5 251 == 3.3 Configure Commands to read data ==
Xiaoling 2.2 252
Xiaoling 15.5 253 (((
Xiaoling 29.6 254 There are plenty of RS485 and TTL level devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-BL supports flexible command set. User can use [[AT Commands or LoRaWAN Downlink>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]] Command to configure how RS485-BL should read the sensor and how to handle the return from RS485 or TTL sensors.
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Xiaoling 15.5 257 )))
Xiaoling 2.2 258
Xiaoling 15.5 259 === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
Xiaoling 2.2 260
Xiaoling 40.35 261 (((
Xiaoling 2.2 262 RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
Xiaoling 40.35 263 )))
Xiaoling 2.2 264
Xiaoling 40.35 265 (((
Xiaoling 15.5 266 **~1. RS485-MODBUS mode:**
Xiaoling 40.35 267 )))
Xiaoling 2.2 268
Xiaoling 40.35 269 (((
Xiaoling 2.2 270 AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
Xiaoling 40.35 271 )))
Xiaoling 2.2 272
Xiaoling 40.35 273 (((
Xiaoling 15.5 274 **2. TTL mode:**
Xiaoling 40.35 275 )))
Xiaoling 2.2 276
Xiaoling 40.35 277 (((
Xiaoling 2.2 278 AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
Xiaoling 40.35 279 )))
Xiaoling 2.2 280
Xiaoling 40.35 281 (((
Xiaoling 2.2 282 RS485-BL default UART settings is **9600, no parity, stop bit 1**. If the sensor has a different settings, user can change the RS485-BL setting to match.
Xiaoling 40.35 283 )))
Xiaoling 2.2 284
Xiaoling 40.43 285 (% border="1" cellspacing="190" style="background-color:#ffffcc; color:green; width:510px" %)
286 |=(% style="width: 125px;" %)(((
Xiaoling 40.35 287 (((
Xiaoling 15.5 288 **AT Commands**
Xiaoling 40.35 289 )))
Xiaoling 40.43 290 )))|=(% style="width: 110px;" %)(((
Xiaoling 40.35 291 (((
Xiaoling 15.5 292 **Description**
Xiaoling 40.35 293 )))
Xiaoling 40.43 294 )))|=(% style="width: 255px;" %)(((
Xiaoling 40.35 295 (((
Xiaoling 15.5 296 **Example**
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Xiaoling 40.35 298 )))
Xiaoling 40.43 299 |(% style="width:125px" %)(((
Xiaoling 40.35 300 (((
Xiaoling 15.5 301 AT+BAUDR
Xiaoling 40.35 302 )))
Xiaoling 40.43 303 )))|(% style="width:110px" %)(((
Xiaoling 40.35 304 (((
Xiaoling 15.5 305 Set the baud rate (for RS485 connection). Default Value is: 9600.
Xiaoling 40.35 306 )))
Xiaoling 40.43 307 )))|(% style="width:255px" %)(((
Xiaoling 15.5 308 (((
Xiaoling 40.35 309 (((
Xiaoling 2.2 310 AT+BAUDR=9600
Xiaoling 15.5 311 )))
Xiaoling 40.35 312 )))
Xiaoling 2.2 313
Xiaoling 15.5 314 (((
Xiaoling 40.35 315 (((
Xiaoling 2.2 316 Options: (1200,2400,4800,14400,19200,115200)
317 )))
Xiaoling 15.5 318 )))
Xiaoling 40.35 319 )))
Xiaoling 40.43 320 |(% style="width:125px" %)(((
Xiaoling 40.35 321 (((
Xiaoling 15.5 322 AT+PARITY
Xiaoling 40.35 323 )))
Xiaoling 40.43 324 )))|(% style="width:110px" %)(((
Xiaoling 15.5 325 (((
Xiaoling 40.35 326 (((
Xiaoling 2.2 327 Set UART parity (for RS485 connection)
Xiaoling 15.5 328 )))
Xiaoling 40.35 329 )))
Xiaoling 2.2 330
Xiaoling 15.5 331 (((
Xiaoling 40.35 332 (((
Xiaoling 2.2 333 Default Value is: no parity.
Xiaoling 15.5 334 )))
Xiaoling 40.35 335 )))
Xiaoling 40.43 336 )))|(% style="width:255px" %)(((
Xiaoling 15.5 337 (((
Xiaoling 40.35 338 (((
Xiaoling 2.2 339 AT+PARITY=0
Xiaoling 15.5 340 )))
Xiaoling 40.35 341 )))
Xiaoling 2.2 342
Xiaoling 15.5 343 (((
Xiaoling 40.35 344 (((
Xiaoling 2.2 345 Option: 0: no parity, 1: odd parity, 2: even parity
346 )))
Xiaoling 15.5 347 )))
Xiaoling 40.35 348 )))
Xiaoling 40.43 349 |(% style="width:125px" %)(((
Xiaoling 40.35 350 (((
Xiaoling 15.5 351 AT+STOPBIT
Xiaoling 40.35 352 )))
Xiaoling 40.43 353 )))|(% style="width:110px" %)(((
Xiaoling 15.5 354 (((
Xiaoling 40.35 355 (((
Xiaoling 2.2 356 Set serial stopbit (for RS485 connection)
Xiaoling 15.5 357 )))
Xiaoling 40.35 358 )))
Xiaoling 2.2 359
Xiaoling 15.5 360 (((
Xiaoling 40.35 361 (((
Xiaoling 2.2 362 Default Value is: 1bit.
Xiaoling 15.5 363 )))
Xiaoling 40.35 364 )))
Xiaoling 40.43 365 )))|(% style="width:255px" %)(((
Xiaoling 15.5 366 (((
Xiaoling 40.35 367 (((
Xiaoling 2.2 368 AT+STOPBIT=0 for 1bit
Xiaoling 15.5 369 )))
Xiaoling 40.35 370 )))
Xiaoling 2.2 371
Xiaoling 15.5 372 (((
Xiaoling 40.35 373 (((
Xiaoling 2.2 374 AT+STOPBIT=1 for 1.5 bit
Xiaoling 15.5 375 )))
Xiaoling 40.35 376 )))
Xiaoling 2.2 377
Xiaoling 15.5 378 (((
Xiaoling 40.35 379 (((
Xiaoling 2.2 380 AT+STOPBIT=2 for 2 bits
381 )))
Xiaoling 15.5 382 )))
Xiaoling 40.35 383 )))
Xiaoling 2.2 384
Xiaoling 15.6 385 === 3.3.2 Configure sensors ===
Xiaoling 2.2 386
Xiaoling 15.6 387 (((
388 Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**.
389 )))
Xiaoling 2.2 390
Xiaoling 15.6 391 (((
392 When user issue an (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) command, Each (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) equals to send a command to the RS485 or TTL sensors. This command will only run when user input it and won’t run during each sampling.
393 )))
Xiaoling 2.2 394
Xiaoling 15.6 395 (% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
396 |**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
397 |AT+CFGDEV|(% style="width:418px" %)(((
Xiaoling 2.2 398 This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
399
Xiaoling 15.6 400 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
Xiaoling 2.2 401
Xiaoling 15.6 402 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
403 )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
Xiaoling 2.2 404
Xiaoling 29.24 405 Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>||anchor="HRS485DebugCommand28AT2BCFGDEV29"]].
Xiaoling 2.2 406
Xiaoling 29.22 407
Xiaoling 15.6 408 === 3.3.3 Configure read commands for each sampling ===
Xiaoling 2.2 409
Xiaoling 15.6 410 (((
Xiaoling 2.2 411 RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
Xiaoling 15.6 412 )))
Xiaoling 2.2 413
Xiaoling 15.6 414 (((
Xiaoling 2.2 415 During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
Xiaoling 15.6 416 )))
Xiaoling 2.2 417
Xiaoling 15.6 418 (((
Xiaoling 2.2 419 To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
Xiaoling 15.6 420 )))
Xiaoling 2.2 421
Xiaoling 15.6 422 (((
Xiaoling 2.2 423 This section describes how to achieve above goals.
Xiaoling 15.6 424 )))
Xiaoling 2.2 425
Xiaoling 15.6 426 (((
Xiaoling 2.2 427 During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
Xiaoling 15.6 428 )))
Xiaoling 2.2 429
Xiaoling 15.6 430 (((
Xiaoling 2.2 431 **Command from RS485-BL to Sensor:**
Xiaoling 15.6 432 )))
Xiaoling 2.2 433
Xiaoling 15.6 434 (((
Xiaoling 2.2 435 RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
Xiaoling 15.6 436 )))
Xiaoling 2.2 437
Xiaoling 15.6 438 (((
Xiaoling 2.2 439 **Handle return from sensors to RS485-BL**:
Xiaoling 15.6 440 )))
Xiaoling 2.2 441
Xiaoling 15.6 442 (((
Xiaoling 2.2 443 After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
Xiaoling 15.6 444 )))
Xiaoling 2.2 445
Xiaoling 15.6 446 * (((
447 **AT+DATACUT**
448 )))
Xiaoling 2.2 449
Xiaoling 15.6 450 (((
Xiaoling 2.2 451 When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
Xiaoling 15.6 452 )))
Xiaoling 2.2 453
Xiaoling 15.6 454 * (((
455 **AT+SEARCH**
456 )))
Xiaoling 2.2 457
Xiaoling 15.6 458 (((
Xiaoling 2.2 459 When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
Xiaoling 15.6 460 )))
Xiaoling 2.2 461
Xiaoling 15.6 462 (((
Xiaoling 2.2 463 **Define wait timeout:**
Xiaoling 15.6 464 )))
Xiaoling 2.2 465
Xiaoling 15.6 466 (((
Xiaoling 2.2 467 Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example, AT+CMDDL1=1000 to send the open time to 1000ms
Xiaoling 15.6 468 )))
Xiaoling 2.2 469
Xiaoling 15.6 470 (((
Xiaoling 2.2 471 After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
Xiaoling 15.6 472 )))
Xiaoling 2.2 473
474 **Examples:**
475
476 Below are examples for the how above AT Commands works.
477
478 **AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
479
Xiaoling 19.2 480 (% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:501px" %)
Xiaoling 18.2 481 |(% style="width:498px" %)(((
Xiaoling 2.2 482 **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
483
484 **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
485
486 **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
487 )))
488
489 For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
490
491 In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
492
493 **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
494
Xiaoling 19.2 495 (% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:580px" %)
Xiaoling 18.2 496 |(% style="width:577px" %)(((
Xiaoling 2.2 497 **AT+SEARCHx=aa,xx xx xx xx xx**
498
499 * **aa: 1: prefix match mode; 2: prefix and suffix match mode**
500 * **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
501 )))
502
Xiaoling 18.2 503 **Examples:**
Xiaoling 2.2 504
Xiaoling 29.27 505 1)For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
Xiaoling 2.2 506
507 If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
508
Xiaoling 18.2 509 The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)**2e 30 58 5f 36 41 30 31 00 49**
Xiaoling 2.2 510
Xiaoling 18.2 511 [[image:1653271044481-711.png]]
Xiaoling 2.2 512
Xiaoling 29.27 513 2)For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
Xiaoling 2.2 514
515 If we set AT+SEARCH1=2, 1E 56 34+31 00 49
516
Xiaoling 18.2 517 Device will search the bytes between 1E 56 34 and 31 00 49. So it is(% style="background-color:yellow" %) **2e 30 58 5f 36 41 30**
Xiaoling 2.2 518
Xiaoling 19.2 519 [[image:1653271276735-972.png]]
Xiaoling 2.2 520
521 **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
522
Xiaoling 23.2 523 (% style="background-color:#4f81bd; color:white; width:729px" %)
524 |(% style="width:726px" %)(((
Xiaoling 2.2 525 **AT+DATACUTx=a,b,c**
526
527 * **a: length for the return of AT+COMMAND**
528 * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
Xiaoling 6.2 529 * **c: define the position for valid value.  **
Xiaoling 2.2 530 )))
531
Xiaoling 29.27 532 **Examples:**
Xiaoling 2.2 533
534 * Grab bytes:
535
Xiaoling 23.2 536 [[image:1653271581490-837.png||height="313" width="722"]]
Xiaoling 2.2 537
Xiaoling 29.26 538
Xiaoling 2.2 539 * Grab a section.
540
Xiaoling 23.2 541 [[image:1653271648378-342.png||height="326" width="720"]]
Xiaoling 2.2 542
Xiaoling 29.29 543
Xiaoling 2.2 544 * Grab different sections.
545
Xiaoling 23.2 546 [[image:1653271657255-576.png||height="305" width="730"]]
Xiaoling 2.2 547
Xiaoling 24.2 548 (((
Xiaoling 23.2 549 (% style="color:red" %)**Note:**
Xiaoling 24.2 550 )))
Xiaoling 2.2 551
Xiaoling 24.2 552 (((
Xiaoling 2.2 553 AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0.
Xiaoling 24.2 554 )))
Xiaoling 2.2 555
Xiaoling 24.2 556 (((
Xiaoling 23.2 557 **Example:**
Xiaoling 24.2 558 )))
Xiaoling 2.2 559
Xiaoling 24.2 560 (((
Xiaoling 23.2 561 (% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
Xiaoling 24.2 562 )))
Xiaoling 2.2 563
Xiaoling 24.2 564 (((
Xiaoling 23.2 565 (% style="color:red" %)AT+SEARCH1=1,1E 56 34
Xiaoling 24.2 566 )))
Xiaoling 2.2 567
Xiaoling 24.2 568 (((
Xiaoling 23.2 569 (% style="color:red" %)AT+DATACUT1=0,2,1~~5
Xiaoling 24.2 570 )))
Xiaoling 2.2 571
Xiaoling 24.2 572 (((
Xiaoling 23.2 573 (% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
Xiaoling 24.2 574 )))
Xiaoling 2.2 575
Xiaoling 24.2 576 (((
Xiaoling 23.2 577 (% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
Xiaoling 24.2 578 )))
Xiaoling 2.2 579
Xiaoling 24.2 580 (((
Xiaoling 23.2 581 (% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
Xiaoling 24.2 582 )))
Xiaoling 2.2 583
Xiaoling 24.2 584 [[image:1653271763403-806.png]]
Xiaoling 2.2 585
Xiaoling 29.30 586
Xiaoling 26.2 587 === 3.3.4 Compose the uplink payload ===
Xiaoling 2.2 588
Xiaoling 26.2 589 (((
Xiaoling 2.2 590 Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
Xiaoling 26.2 591 )))
Xiaoling 2.2 592
Xiaoling 26.2 593 (((
Xiaoling 29.33 594 (% style="color:#037691" %)**Examples: AT+DATAUP=0**
Xiaoling 26.2 595 )))
Xiaoling 2.2 596
Xiaoling 26.2 597 (((
598 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
599 )))
Xiaoling 2.2 600
Xiaoling 26.2 601 (((
Xiaoling 2.2 602 Final Payload is
Xiaoling 26.2 603 )))
Xiaoling 2.2 604
Xiaoling 26.2 605 (((
Xiaoling 29.33 606 (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
Xiaoling 26.2 607 )))
Xiaoling 2.2 608
Xiaoling 26.2 609 (((
Xiaoling 2.2 610 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
Xiaoling 26.2 611 )))
Xiaoling 2.2 612
Xiaoling 26.2 613 [[image:1653272787040-634.png||height="515" width="719"]]
Xiaoling 2.2 614
Xiaoling 29.31 615
Xiaoling 29.33 616
Xiaoling 26.2 617 (((
Xiaoling 29.33 618 (% style="color:#037691" %)**Examples: AT+DATAUP=1**
Xiaoling 29.32 619
620
Xiaoling 26.2 621 )))
Xiaoling 2.2 622
Xiaoling 26.2 623 (((
624 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
625 )))
Xiaoling 2.2 626
Xiaoling 26.2 627 (((
Xiaoling 2.2 628 Final Payload is
Xiaoling 26.2 629 )))
Xiaoling 2.2 630
Xiaoling 26.2 631 (((
Xiaoling 29.33 632 (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
Xiaoling 26.2 633 )))
Xiaoling 2.2 634
Xiaoling 26.2 635 1. (((
636 Battery Info (2 bytes): Battery voltage
637 )))
638 1. (((
639 PAYVER (1 byte): Defined by AT+PAYVER
640 )))
641 1. (((
642 PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
643 )))
644 1. (((
645 PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
646 )))
647 1. (((
648 DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
649 )))
Xiaoling 2.2 650
Xiaoling 26.2 651 [[image:1653272817147-600.png||height="437" width="717"]]
Xiaoling 2.2 652
653 So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
654
Xiaoling 29.36 655
Xiaoling 28.2 656 DATA1=RETURN1 Valid Value = (% style="background-color:#4f81bd; color:white" %) 20 20 0a 33 90 41
Xiaoling 2.2 657
Xiaoling 28.2 658 DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10= (% style="background-color:#4f81bd; color:white" %)02 aa 05 81 0a 20
Xiaoling 2.2 659
Xiaoling 28.2 660 DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 =(% style="background-color:#4f81bd; color:white" %) 20 20 20 2d 30
Xiaoling 2.2 661
Xiaoling 29.36 662
Xiaoling 2.2 663 Below are the uplink payloads:
664
Xiaoling 28.2 665 [[image:1653272901032-107.png]]
Xiaoling 2.2 666
Xiaoling 29.34 667
Xiaoling 28.2 668 (% style="color:red" %)Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
Xiaoling 2.2 669
670 ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
671
672 * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
673
674 * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
675
676 ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
677
Xiaoling 29.36 678
679
Xiaoling 28.2 680 === 3.3.5 Uplink on demand ===
Xiaoling 2.2 681
Xiaoling 28.2 682 (((
Xiaoling 2.2 683 Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
Xiaoling 28.2 684 )))
Xiaoling 2.2 685
Xiaoling 28.2 686 (((
Xiaoling 2.2 687 Downlink control command:
Xiaoling 28.2 688 )))
Xiaoling 2.2 689
Xiaoling 28.2 690 (((
691 **0x08 command**: Poll an uplink with current command set in RS485-BL.
692 )))
Xiaoling 2.2 693
Xiaoling 28.2 694 (((
695 **0xA8 command**: Send a command to RS485-BL and uplink the output from sensors.
Xiaoling 29.37 696
697
Xiaoling 28.2 698 )))
Xiaoling 2.2 699
Xiaoling 28.2 700 === 3.3.6 Uplink on Interrupt ===
Xiaoling 2.2 701
Xiaoling 28.2 702 Put the interrupt sensor between 3.3v_out and GPIO ext.
Xiaoling 2.2 703
Xiaoling 28.2 704 [[image:1653273818896-432.png]]
Xiaoling 2.2 705
Xiaoling 29.38 706
Xiaoling 28.4 707 (((
Xiaoling 2.2 708 AT+INTMOD=0  Disable Interrupt
Xiaoling 28.4 709 )))
Xiaoling 2.2 710
Xiaoling 28.4 711 (((
Xiaoling 2.2 712 AT+INTMOD=1  Interrupt trigger by rising or falling edge.
Xiaoling 28.4 713 )))
Xiaoling 2.2 714
Xiaoling 28.4 715 (((
Xiaoling 2.2 716 AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
Xiaoling 28.4 717 )))
Xiaoling 2.2 718
Xiaoling 28.4 719 (((
Xiaoling 2.2 720 AT+INTMOD=3  Interrupt trigger by rising edge.
Xiaoling 29.38 721
722
Xiaoling 28.4 723 )))
Xiaoling 2.2 724
Xiaoling 28.2 725 == 3.4 Uplink Payload ==
Xiaoling 2.2 726
Xiaoling 28.3 727 (% border="1" style="background-color:#4f81bd; color:white; width:850px" %)
728 |**Size(bytes)**|(% style="width:130px" %)**2**|(% style="width:93px" %)**1**|(% style="width:509px" %)**Length depends on the return from the commands**
729 |Value|(% style="width:130px" %)(((
730 (((
Xiaoling 2.2 731 Battery(mV)
Xiaoling 28.3 732 )))
Xiaoling 2.2 733
Xiaoling 28.3 734 (((
Xiaoling 2.2 735 &
Xiaoling 28.3 736 )))
Xiaoling 2.2 737
Xiaoling 28.3 738 (((
Xiaoling 2.2 739 Interrupt _Flag
Xiaoling 28.3 740 )))
741 )))|(% style="width:93px" %)(((
Xiaoling 2.2 742 PAYLOAD_VER
743
744
Xiaoling 28.3 745 )))|(% style="width:509px" %)If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
Xiaoling 2.2 746
747 Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
748
Xiaoling 29.2 749 (((
Xiaoling 29.39 750 {{{function Decoder(bytes, port) {}}}
Xiaoling 29.2 751 )))
Xiaoling 2.2 752
Xiaoling 29.2 753 (((
Xiaoling 29.39 754 {{{//Payload Formats of RS485-BL Deceive}}}
Xiaoling 29.2 755 )))
Xiaoling 2.2 756
Xiaoling 29.2 757 (((
Xiaoling 29.39 758 {{{return {}}}
Xiaoling 29.2 759 )))
Xiaoling 2.2 760
Xiaoling 29.2 761 (((
Xiaoling 29.39 762 {{{ //Battery,units:V}}}
Xiaoling 29.2 763 )))
Xiaoling 2.2 764
Xiaoling 29.2 765 (((
Xiaoling 29.39 766 {{{ BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,}}}
Xiaoling 29.2 767 )))
Xiaoling 2.2 768
Xiaoling 29.2 769 (((
Xiaoling 29.39 770 {{{ //GPIO_EXTI }}}
Xiaoling 29.2 771 )))
Xiaoling 2.2 772
Xiaoling 29.2 773 (((
Xiaoling 29.39 774 {{{ EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",}}}
Xiaoling 29.2 775 )))
Xiaoling 2.2 776
Xiaoling 29.2 777 (((
Xiaoling 29.39 778 {{{ //payload of version}}}
Xiaoling 29.2 779 )))
Xiaoling 2.2 780
Xiaoling 29.2 781 (((
Xiaoling 29.39 782 {{{ Pay_ver:bytes[2],}}}
Xiaoling 29.2 783 )))
Xiaoling 2.2 784
Xiaoling 29.2 785 (((
Xiaoling 29.39 786 {{{ }; }}}
Xiaoling 29.2 787 )))
Xiaoling 2.2 788
Xiaoling 29.2 789 (((
Xiaoling 40.19 790 **}**
Xiaoling 29.39 791
792
Xiaoling 29.2 793 )))
Xiaoling 2.2 794
Xiaoling 29.2 795 (((
Xiaoling 2.2 796 TTN V3 uplink screen shot.
Xiaoling 29.2 797 )))
Xiaoling 2.2 798
Xiaoling 29.2 799 [[image:1653274001211-372.png||height="192" width="732"]]
Xiaoling 2.2 800
Xiaoling 29.39 801
Xiaoling 29.3 802 == 3.5 Configure RS485-BL via AT or Downlink ==
Xiaoling 2.2 803
Xiaoling 29.40 804 User can configure RS485-BL via AT Commands or LoRaWAN Downlink Commands
Xiaoling 2.2 805
806 There are two kinds of Commands:
807
Xiaoling 40.8 808 * (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
Xiaoling 2.2 809
Xiaoling 29.40 810 * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-BL.  User can see these commands below:
Xiaoling 2.2 811
Xiaoling 29.40 812 === 3.5.1 Common Commands: ===
Xiaoling 2.2 813
Xiaoling 29.40 814 They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
Xiaoling 2.2 815
Xiaoling 29.40 816
817 === 3.5.2 Sensor related commands: ===
818
Xiaoling 2.2 819
Xiaoling 29.41 820 ==== **Choose Device Type (RS485 or TTL)** ====
821
Xiaoling 2.2 822 RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
823
Xiaoling 29.42 824 * **AT Command**
Xiaoling 2.2 825
Xiaoling 30.3 826 (% class="box infomessage" %)
827 (((
Xiaoling 2.2 828 **AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
Xiaoling 30.3 829 )))
Xiaoling 2.2 830
Xiaoling 30.3 831 (% class="box infomessage" %)
832 (((
Xiaoling 2.2 833 **AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
Xiaoling 30.3 834 )))
Xiaoling 2.2 835
836
Xiaoling 29.42 837 * **Downlink Payload**
Xiaoling 2.2 838
Xiaoling 29.42 839 **0A aa**  ~-~->  same as AT+MOD=aa
Xiaoling 2.2 840
841
842
Xiaoling 29.43 843 ==== **RS485 Debug Command (AT+CFGDEV)** ====
Xiaoling 2.2 844
845 This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
846
Xiaoling 29.43 847 * **AT Command**
Xiaoling 2.2 848
Xiaoling 30.3 849 (% class="box infomessage" %)
850 (((
851 **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
852 )))
Xiaoling 2.2 853
854 m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
855
856
Xiaoling 29.43 857 * **Downlink Payload**
Xiaoling 2.2 858
859 Format: A8 MM NN XX XX XX XX YY
860
861 Where:
862
863 * MM: 1: add CRC-16/MODBUS ; 0: no CRC
864 * NN: The length of RS485 command
865 * XX XX XX XX: RS485 command total NN bytes
866 * YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
867
868 **Example 1:**
869
870 To connect a Modbus Alarm with below commands.
871
Xiaoling 30.2 872 * The command to active alarm is: 0A 05 00 04 00 01 **4C B0**. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
Xiaoling 2.2 873
Xiaoling 30.2 874 * The command to deactivate alarm is: 0A 05 00 04 00 00 **8D 70**. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
Xiaoling 2.2 875
876 So if user want to use downlink command to control to RS485 Alarm, he can use:
877
Xiaoling 30.2 878 (% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
Xiaoling 2.2 879
Xiaoling 30.2 880 (% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
Xiaoling 2.2 881
882 A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
883
884
885 **Example 2:**
886
887 Check TTL Sensor return:
888
Xiaoling 30.2 889 [[image:1654132684752-193.png]]
Xiaoling 2.2 890
891
892
Xiaoling 40.10 893
Xiaoling 30.3 894 ==== **Set Payload version** ====
Xiaoling 2.2 895
896 This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
897
Xiaoling 30.3 898 * **AT Command:**
Xiaoling 2.2 899
Xiaoling 30.3 900 (% class="box infomessage" %)
901 (((
902 **AT+PAYVER: Set PAYVER field = 1**
903 )))
Xiaoling 2.2 904
905
Xiaoling 30.3 906 * **Downlink Payload:**
Xiaoling 2.2 907
Xiaoling 30.4 908 **0xAE 01**  ~-~-> Set PAYVER field =  0x01
Xiaoling 2.2 909
Xiaoling 30.4 910 **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
Xiaoling 2.2 911
912
913
Xiaoling 30.4 914 ==== **Set RS485 Sampling Commands** ====
915
Xiaoling 2.2 916 AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
917
Xiaoling 30.5 918 These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
Xiaoling 2.2 919
920
Xiaoling 30.7 921 * **AT Command:**
Xiaoling 2.2 922
Xiaoling 30.7 923 (% class="box infomessage" %)
924 (((
925 **AT+COMMANDx: Configure RS485 read command to sensor.**
926 )))
Xiaoling 2.2 927
Xiaoling 30.7 928 (% class="box infomessage" %)
929 (((
930 **AT+DATACUTx: Configure how to handle return from RS485 devices.**
931 )))
Xiaoling 2.2 932
Xiaoling 30.7 933 (% class="box infomessage" %)
934 (((
935 **AT+SEARCHx: Configure search command**
936 )))
Xiaoling 2.2 937
938
Xiaoling 30.7 939 * **Downlink Payload:**
Xiaoling 2.2 940
Xiaoling 30.7 941 **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
Xiaoling 2.2 942
Xiaoling 30.7 943 (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
Xiaoling 2.2 944
945 Format: AF MM NN LL XX XX XX XX YY
946
947 Where:
948
949 * MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
Xiaoling 30.7 950 * NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
951 * LL:  The length of AT+COMMAND or AT+DATACUT command
Xiaoling 2.2 952 * XX XX XX XX: AT+COMMAND or AT+DATACUT command
Xiaoling 30.7 953 * YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
Xiaoling 2.2 954
Xiaoling 30.7 955 **Example:**
Xiaoling 2.2 956
Xiaoling 30.7 957 (% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
Xiaoling 2.2 958
Xiaoling 30.7 959 (% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
Xiaoling 2.2 960
Xiaoling 30.7 961 (% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
Xiaoling 2.2 962
963
Xiaoling 30.8 964 **0xAB** downlink command can be used for set AT+SEARCHx
Xiaoling 2.2 965
Xiaoling 30.8 966 **Example:** **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
Xiaoling 2.2 967
968 * AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
969 * AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
970
971 **AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
972
973
Xiaoling 30.8 974
Xiaoling 31.2 975 ==== **Fast command to handle MODBUS device** ====
Xiaoling 2.2 976
977 AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
978
979 This command is valid since v1.3 firmware version
980
981
Xiaoling 31.2 982 **AT+MBFUN has only two value:**
Xiaoling 2.2 983
Xiaoling 32.2 984 * **AT+MBFUN=1**: Enable Modbus reading. And get response base on the MODBUS return
Xiaoling 2.2 985
986 AT+MBFUN=1, device can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
987
Xiaoling 32.2 988 * **AT+MBFUN=0**: Disable Modbus fast reading.
Xiaoling 2.2 989
Xiaoling 31.2 990 **Example:**
991
Xiaoling 2.2 992 * AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
993 * AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
994 * AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
995
Xiaoling 31.2 996 [[image:1654133913295-597.png]]
Xiaoling 2.2 997
998
Xiaoling 32.2 999 [[image:1654133954153-643.png]]
Xiaoling 2.2 1000
1001
Xiaoling 32.3 1002 * **Downlink Commands:**
Xiaoling 2.2 1003
Xiaoling 32.3 1004 **A9 aa** ~-~-> Same as AT+MBFUN=aa
Xiaoling 2.2 1005
1006
Xiaoling 32.3 1007
Xiaoling 32.4 1008 ==== **RS485 command timeout** ====
Xiaoling 2.2 1009
1010 Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
1011
1012 Default value: 0, range:  0 ~~ 5 seconds
1013
1014
Xiaoling 32.4 1015 * **AT Command:**
Xiaoling 2.2 1016
Xiaoling 32.4 1017 (% class="box infomessage" %)
1018 (((
1019 **AT+CMDDLaa=hex(bb cc)**
1020 )))
Xiaoling 2.2 1021
Xiaoling 32.5 1022 **Example:**
Xiaoling 2.2 1023
1024 **AT+CMDDL1=1000** to send the open time to 1000ms
1025
1026
Xiaoling 32.4 1027 * **Downlink Payload:**
Xiaoling 2.2 1028
1029 0x AA aa bb cc
1030
1031 Same as: AT+CMDDLaa=hex(bb cc)
1032
Xiaoling 32.5 1033 **Example:**
Xiaoling 2.2 1034
Xiaoling 32.5 1035 **0xAA 01 03 E8**  ~-~-> Same as **AT+CMDDL1=1000 ms**
Xiaoling 2.2 1036
1037
1038
Xiaoling 32.6 1039 ==== **Uplink payload mode** ====
1040
Xiaoling 2.2 1041 Define to use one uplink or multiple uplinks for the sampling.
1042
Xiaoling 32.7 1043 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
Xiaoling 2.2 1044
Xiaoling 32.8 1045 * **AT Command:**
Xiaoling 2.2 1046
Xiaoling 32.8 1047 (% class="box infomessage" %)
1048 (((
1049 **AT+DATAUP=0**
1050 )))
Xiaoling 2.2 1051
Xiaoling 32.8 1052 (% class="box infomessage" %)
1053 (((
1054 **AT+DATAUP=1**
1055 )))
Xiaoling 2.2 1056
1057
Xiaoling 32.8 1058 * **Downlink Payload:**
Xiaoling 2.2 1059
Xiaoling 32.9 1060 **0xAD 00**  **~-~->** Same as AT+DATAUP=0
Xiaoling 2.2 1061
Xiaoling 32.9 1062 **0xAD 01**  **~-~->** Same as AT+DATAUP=1
Xiaoling 2.2 1063
1064
1065
Xiaoling 40.20 1066
Xiaoling 32.9 1067 ==== **Manually trigger an Uplink** ====
1068
Xiaoling 2.2 1069 Ask device to send an uplink immediately.
1070
Xiaoling 32.10 1071 * **Downlink Payload:**
Xiaoling 2.2 1072
Xiaoling 32.10 1073 **0x08 FF**, RS485-BL will immediately send an uplink.
Xiaoling 2.2 1074
1075
1076
Xiaoling 40.21 1077
Xiaoling 32.10 1078 ==== **Clear RS485 Command** ====
1079
Xiaoling 2.2 1080 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1081
1082
Xiaoling 33.2 1083 * **AT Command:**
Xiaoling 2.2 1084
Xiaoling 33.2 1085 (% style="color:#037691" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
Xiaoling 2.2 1086
Xiaoling 6.2 1087 Example screen shot after clear all RS485 commands. 
Xiaoling 2.2 1088
1089
1090 The uplink screen shot is:
1091
Xiaoling 33.2 1092 [[image:1654134704555-320.png]]
Xiaoling 2.2 1093
1094
Xiaoling 33.2 1095 * **Downlink Payload:**
Xiaoling 2.2 1096
Xiaoling 33.2 1097 **0x09 aa bb** same as AT+CMDEAR=aa,bb
Xiaoling 2.2 1098
1099
1100
Xiaoling 33.2 1101 ==== **Set Serial Communication Parameters** ====
1102
Xiaoling 2.2 1103 Set the Rs485 serial communication parameters:
1104
Xiaoling 33.2 1105 * **AT Command:**
Xiaoling 2.2 1106
1107 Set Baud Rate:
1108
Xiaoling 33.2 1109 (% class="box infomessage" %)
1110 (((
1111 **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1112 )))
Xiaoling 2.2 1113
Xiaoling 33.2 1114 Set UART Parity
Xiaoling 2.2 1115
Xiaoling 33.2 1116 (% class="box infomessage" %)
1117 (((
1118 **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1119 )))
Xiaoling 2.2 1120
1121 Set STOPBIT
1122
Xiaoling 33.2 1123 (% class="box infomessage" %)
1124 (((
1125 **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1126 )))
Xiaoling 2.2 1127
1128
Xiaoling 33.2 1129 * **Downlink Payload:**
Xiaoling 2.2 1130
Xiaoling 33.2 1131 **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
Xiaoling 2.2 1132
Xiaoling 33.2 1133 **Example:**
Xiaoling 2.2 1134
1135 * A7 01 00 60   same as AT+BAUDR=9600
1136 * A7 01 04 80  same as AT+BAUDR=115200
1137
1138 A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1139
1140 A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1141
1142
1143
Xiaoling 33.2 1144 ==== **Control output power duration** ====
1145
Xiaoling 2.2 1146 User can set the output power duration before each sampling.
1147
Xiaoling 33.3 1148 * **AT Command:**
Xiaoling 2.2 1149
Xiaoling 33.3 1150 **Example:**
Xiaoling 2.2 1151
Xiaoling 33.3 1152 **AT+3V3T=1000**  ~/~/ 3V3 output power will open 1s before each sampling.
Xiaoling 2.2 1153
Xiaoling 33.3 1154 **AT+5VT=1000**  ~/~/ +5V output power will open 1s before each sampling.
Xiaoling 2.2 1155
1156
Xiaoling 33.3 1157 * **LoRaWAN Downlink Command:**
Xiaoling 2.2 1158
Xiaoling 33.3 1159 **07 01 aa bb**  Same as AT+5VT=(aa bb)
Xiaoling 2.2 1160
Xiaoling 33.3 1161 **07 02 aa bb**  Same as AT+3V3T=(aa bb)
Xiaoling 2.2 1162
1163
Xiaoling 40.22 1164
Xiaoling 33.4 1165 == 3.6 Buttons ==
Xiaoling 2.2 1166
Xiaoling 33.4 1167 (% border="1" style="background-color:#ffffcc; color:green; width:233px" %)
1168 |=(% style="width: 89px;" %)**Button**|=(% style="width: 141px;" %)**Feature**
1169 |(% style="width:89px" %)**RST**|(% style="width:141px" %)Reboot RS485-BL
Xiaoling 2.2 1170
Xiaoling 33.4 1171 == 3.7 +3V3 Output ==
Xiaoling 2.2 1172
1173 RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1174
Xiaoling 6.2 1175 The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling. 
Xiaoling 2.2 1176
1177 The +3V3 output time can be controlled by AT Command.
1178
1179
Xiaoling 33.4 1180 (% style="color:#037691" %)**AT+3V3T=1000**
1181
1182
Xiaoling 2.2 1183 Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1184
1185 By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1186
1187
Xiaoling 33.4 1188 == 3.8 +5V Output ==
Xiaoling 2.2 1189
1190 RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1191
Xiaoling 6.2 1192 The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling. 
Xiaoling 2.2 1193
1194 The 5V output time can be controlled by AT Command.
1195
Xiaoling 33.6 1196
Xiaoling 33.4 1197 (% style="color:#037691" %)**AT+5VT=1000**
Xiaoling 2.2 1198
Xiaoling 33.6 1199
Xiaoling 2.2 1200 Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1201
1202 By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
1203
1204
Xiaoling 33.4 1205 == 3.9 LEDs ==
Xiaoling 2.2 1206
Xiaoling 33.6 1207 (% border="1" style="background-color:#ffffcc; color:green; width:332px" %)
1208 |=**LEDs**|=(% style="width: 274px;" %)**Feature**
1209 |**LED1**|(% style="width:274px" %)Blink when device transmit a packet.
Xiaoling 2.2 1210
Xiaoling 33.4 1211 == 3.10 Switch Jumper ==
Xiaoling 2.2 1212
Xiaoling 33.8 1213 (% border="1" style="background-color:#ffffcc; color:green; width:515px" %)
1214 |=(% style="width: 124px;" %)**Switch Jumper**|=(% style="width: 388px;" %)**Feature**
1215 |(% style="width:124px" %)**SW1**|(% style="width:388px" %)(((
Xiaoling 2.2 1216 ISP position: Upgrade firmware via UART
1217
1218 Flash position: Configure device, check running status.
1219 )))
Xiaoling 33.8 1220 |(% style="width:124px" %)**SW2**|(% style="width:388px" %)(((
Xiaoling 2.2 1221 5V position: set to compatible with 5v I/O.
1222
1223 3.3v position: set to compatible with 3.3v I/O.,
1224 )))
1225
Xiaoling 33.8 1226 **+3.3V**: is always ON
Xiaoling 2.2 1227
Xiaoling 33.8 1228 **+5V**: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
Xiaoling 2.2 1229
Xiaoling 33.8 1230
Xiaoling 33.9 1231 = 4. Case Study =
Xiaoling 2.2 1232
Xiaoling 33.10 1233 User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
Xiaoling 2.2 1234
1235
Xiaoling 33.11 1236 = 5. Use AT Command =
Xiaoling 2.2 1237
Xiaoling 33.11 1238 == 5.1 Access AT Command ==
Xiaoling 2.2 1239
1240 RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1241
Xiaoling 34.2 1242 [[image:1654135840598-282.png]]
Xiaoling 2.2 1243
1244
Xiaoling 35.2 1245 In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
Xiaoling 2.2 1246
Xiaoling 35.2 1247 [[image:1654136105500-922.png]]
Xiaoling 2.2 1248
1249
Xiaoling 40.27 1250 More detail AT Command manual can be found at [[AT Command Manual>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]]
Xiaoling 2.2 1251
1252
Xiaoling 35.2 1253 == 5.2 Common AT Command Sequence ==
Xiaoling 2.2 1254
Xiaoling 35.2 1255 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
Xiaoling 2.2 1256
1257 If device has not joined network yet:
1258
Xiaoling 35.4 1259 (% class="box infomessage" %)
1260 (((
1261 **AT+FDR**
1262 )))
Xiaoling 2.2 1263
Xiaoling 35.4 1264 (% class="box infomessage" %)
1265 (((
1266 **AT+NJM=0**
1267 )))
Xiaoling 2.2 1268
Xiaoling 35.4 1269 (% class="box infomessage" %)
1270 (((
1271 **ATZ**
1272 )))
Xiaoling 2.2 1273
1274
1275 If device already joined network:
1276
Xiaoling 35.4 1277 (% class="box infomessage" %)
1278 (((
1279 **AT+NJM=0**
1280 )))
Xiaoling 2.2 1281
Xiaoling 35.4 1282 (% class="box infomessage" %)
1283 (((
1284 **ATZ**
1285 )))
Xiaoling 2.2 1286
1287
Xiaoling 35.4 1288 === 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1289
1290
Xiaoling 35.5 1291 (% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
Xiaoling 2.2 1292
Xiaoling 35.5 1293 (% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
Xiaoling 2.2 1294
Xiaoling 35.5 1295 (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
Xiaoling 2.2 1296
Xiaoling 35.5 1297 (% style="background-color:#dcdcdc" %)**AT+DR=5**  (%%)Set Data Rate
Xiaoling 2.2 1298
Xiaoling 35.5 1299 (% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
Xiaoling 2.2 1300
Xiaoling 35.5 1301 (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
Xiaoling 2.2 1302
Xiaoling 35.5 1303 (% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
Xiaoling 2.2 1304
Xiaoling 35.5 1305 (% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
Xiaoling 2.2 1306
Xiaoling 35.5 1307 (% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
Xiaoling 2.2 1308
Xiaoling 35.5 1309 (% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
Xiaoling 2.2 1310
Xiaoling 36.3 1311
Xiaoling 35.5 1312 (% style="color:red" %)**Note:**
Xiaoling 2.2 1313
Xiaoling 36.2 1314 (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1315 2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1316 3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1317 4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
Xiaoling 2.2 1318
Xiaoling 36.2 1319 [[image:1654136435598-589.png]]
Xiaoling 2.2 1320
1321
Xiaoling 37.2 1322 = 6. FAQ =
Xiaoling 2.2 1323
Xiaoling 37.2 1324 == 6.1 How to upgrade the image? ==
1325
Xiaoling 2.2 1326 The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1327
1328 * Support new features
1329 * For bug fix
1330 * Change LoRaWAN bands.
1331
1332 Below shows the hardware connection for how to upload an image to RS485-BL:
1333
Xiaoling 37.2 1334 [[image:1654136646995-976.png]]
Xiaoling 2.2 1335
1336 **Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1337
1338 **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1339
1340 **Step3: **Open flashloader; choose the correct COM port to update.
1341
Xiaoling 38.2 1342 [[image:image-20220602102605-1.png]]
Xiaoling 2.2 1343
1344
Xiaoling 39.2 1345 [[image:image-20220602102637-2.png]]
Xiaoling 2.2 1346
1347
Xiaoling 40.2 1348 [[image:image-20220602102715-3.png]]
Xiaoling 39.2 1349
1350
1351
Xiaoling 40.3 1352 == 6.2 How to change the LoRa Frequency Bands/Region? ==
Xiaoling 39.2 1353
Xiaoling 40.32 1354 (((
Xiaoling 40.3 1355 User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
Xiaoling 40.32 1356 )))
Xiaoling 2.2 1357
1358
1359
Xiaoling 40.3 1360 == 6.3 How many RS485-Slave can RS485-BL connects? ==
Xiaoling 2.2 1361
Xiaoling 40.31 1362 (((
Xiaoling 40.3 1363 The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
Xiaoling 40.31 1364 )))
Xiaoling 2.2 1365
1366
1367
Xiaoling 40.3 1368 = 7. Trouble Shooting =
Xiaoling 2.2 1369
1370
Xiaoling 40.3 1371 == 7.1 Downlink doesn’t work, how to solve it? ==
Xiaoling 2.2 1372
Xiaoling 40.3 1373 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
Xiaoling 2.2 1374
1375
Xiaoling 40.3 1376 == 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
Xiaoling 2.2 1377
Xiaoling 40.3 1378 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
Xiaoling 2.2 1379
1380
Xiaoling 40.3 1381 = 8. Order Info =
Xiaoling 2.2 1382
Xiaoling 40.5 1383 (% style="color:blue" %)**Part Number: RS485-BL-XXX**
Xiaoling 2.2 1384
Xiaoling 40.5 1385 (% style="color:blue" %)**XXX:**
Xiaoling 2.2 1386
Xiaoling 40.5 1387 * (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1388 * (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1389 * (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1390 * (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1391 * (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1392 * (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1393 * (% style="color:blue" %)**US915**(%%): frequency bands US915
1394 * (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1395 * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1396 * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
Xiaoling 2.2 1397
Xiaoling 40.3 1398 = 9. Packing Info =
Xiaoling 2.2 1399
Xiaoling 40.4 1400 (((
Xiaoling 2.2 1401 **Package Includes**:
Xiaoling 40.4 1402 )))
Xiaoling 2.2 1403
Xiaoling 40.4 1404 * (((
1405 RS485-BL x 1
1406 )))
1407 * (((
1408 Stick Antenna for LoRa RF part x 1
1409 )))
1410 * (((
1411 Program cable x 1
1412 )))
Xiaoling 2.2 1413
Xiaoling 40.4 1414 (((
Xiaoling 2.2 1415 **Dimension and weight**:
Xiaoling 40.4 1416 )))
Xiaoling 2.2 1417
Xiaoling 40.4 1418 * (((
1419 Device Size: 13.5 x 7 x 3 cm
1420 )))
1421 * (((
1422 Device Weight: 105g
1423 )))
1424 * (((
1425 Package Size / pcs : 14.5 x 8 x 5 cm
1426 )))
1427 * (((
1428 Weight / pcs : 170g
Xiaoling 40.6 1429
1430
Xiaoling 40.4 1431 )))
Xiaoling 2.2 1432
Xiaoling 40.3 1433 = 10. Support =
1434
Xiaoling 40.30 1435 * (((
1436 Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1437 )))
1438 * (((
1439 Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1440 )))