Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 15.4 >
edited by Xiaoling
on 2022/05/19 17:48
To version < 29.2 >
edited by Xiaoling
on 2022/05/23 09:37
>
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Summary

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Title
... ... @@ -1,1 +1,1 @@
1 -RS485-BL – Waterproof RS485 to LoRaWAN Converter
1 +RS485-LN – RS485 to LoRaWAN Converter
Content
... ... @@ -1,12 +1,11 @@
1 1  (% style="text-align:center" %)
2 -[[image:1652947681187-144.png||height="385" width="385"]]
2 +[[image:1653266934636-343.png||height="385" width="385"]]
3 3  
4 4  
5 5  
6 +**RS485-LN – RS485 to LoRaWAN Converter User Manual**
6 6  
7 -**RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
8 8  
9 -
10 10  **Table of Contents:**
11 11  
12 12  
... ... @@ -15,42 +15,28 @@
15 15  
16 16  = 1.Introduction =
17 17  
18 -== 1.1 What is RS485-BL RS485 to LoRaWAN Converter ==
17 +== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
19 19  
20 20  (((
21 -
22 -)))
23 -
24 24  (((
25 -The Dragino RS485-BL is a **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.
21 +The Dragino RS485-LN is a RS485 to LoRaWAN Converter. It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
26 26  )))
27 27  
28 28  (((
29 -RS485-BL can interface to RS485 sensor, 3.3v/5v UART sensor or interrupt sensor. RS485-BL provides **a 3.3v output** and** a 5v output** to power external sensors. Both output voltages are controllable to minimize the total system power consumption.
25 +RS485-LN allows user to monitor / control RS485 devices and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
30 30  )))
31 31  
32 32  (((
33 -RS485-BL is IP67 **waterproof** and powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use for several years.
29 +For data uplink, RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
34 34  )))
35 35  
36 36  (((
37 -RS485-BL runs standard **LoRaWAN 1.0.3 in Class A**. It can reach long transfer range and easy to integrate with LoRaWAN compatible gateway and IoT server.
33 +For data downlink, RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
38 38  )))
39 -
40 -(((
41 -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.
42 42  )))
43 43  
44 -(((
45 -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.
46 -)))
37 +[[image:1653267211009-519.png||height="419" width="724"]]
47 47  
48 -(((
49 -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.
50 -)))
51 -
52 -[[image:1652953304999-717.png||height="424" width="733"]]
53 -
54 54  == 1.2 Specifications ==
55 55  
56 56  **Hardware System:**
... ... @@ -58,19 +58,15 @@
58 58  * STM32L072CZT6 MCU
59 59  * SX1276/78 Wireless Chip 
60 60  * Power Consumption (exclude RS485 device):
61 -** Idle: 6uA@3.3v
46 +** Idle: 32mA@12v
62 62  
63 -*
64 -** 20dB Transmit: 130mA@3.3v
48 +*
49 +** 20dB Transmit: 65mA@12v
65 65  
66 66  **Interface for Model:**
67 67  
68 -* 1 x RS485 Interface
69 -* 1 x TTL Serial , 3.3v or 5v.
70 -* 1 x I2C Interface, 3.3v or 5v.
71 -* 1 x one wire interface
72 -* 1 x Interrupt Interface
73 -* 1 x Controllable 5V output, max
53 +* RS485
54 +* Power Input 7~~ 24V DC. 
74 74  
75 75  **LoRa Spec:**
76 76  
... ... @@ -79,27 +79,30 @@
79 79  ** Band 2 (LF): 410 ~~ 528 Mhz
80 80  * 168 dB maximum link budget.
81 81  * +20 dBm - 100 mW constant RF output vs.
63 +* +14 dBm high efficiency PA.
82 82  * Programmable bit rate up to 300 kbps.
83 83  * High sensitivity: down to -148 dBm.
84 84  * Bullet-proof front end: IIP3 = -12.5 dBm.
85 85  * Excellent blocking immunity.
68 +* Low RX current of 10.3 mA, 200 nA register retention.
86 86  * Fully integrated synthesizer with a resolution of 61 Hz.
87 -* LoRa modulation.
70 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
88 88  * Built-in bit synchronizer for clock recovery.
89 89  * Preamble detection.
90 90  * 127 dB Dynamic Range RSSI.
91 -* Automatic RF Sense and CAD with ultra-fast AFC. ​​​
74 +* Automatic RF Sense and CAD with ultra-fast AFC.
75 +* Packet engine up to 256 bytes with CRC.
92 92  
93 93  == 1.3 Features ==
94 94  
95 -* LoRaWAN Class A & Class C protocol (default Class A)
79 +* LoRaWAN Class A & Class C protocol (default Class C)
96 96  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
97 97  * AT Commands to change parameters
98 -* Remote configure parameters via LoRaWAN Downlink
82 +* Remote configure parameters via LoRa Downlink
99 99  * Firmware upgradable via program port
100 100  * Support multiply RS485 devices by flexible rules
101 101  * Support Modbus protocol
102 -* Support Interrupt uplink
86 +* Support Interrupt uplink (Since hardware version v1.2)
103 103  
104 104  == 1.4 Applications ==
105 105  
... ... @@ -112,53 +112,39 @@
112 112  
113 113  == 1.5 Firmware Change log ==
114 114  
115 -[[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);"]]
99 +[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
116 116  
117 117  == 1.6 Hardware Change log ==
118 118  
119 119  (((
120 -v1.4
121 -)))
122 -
123 123  (((
124 -~1. Change Power IC to TPS22916
125 -)))
105 +v1.2: Add External Interrupt Pin.
126 126  
127 -
128 -(((
129 -v1.3
107 +v1.0: Release
130 130  )))
131 -
132 -(((
133 -~1. Change JP3 from KF350-8P to KF350-11P, Add one extra interface for I2C and one extra interface for one-wire
134 134  )))
135 135  
111 += 2. Power ON Device =
136 136  
137 137  (((
138 -v1.2
139 -)))
114 +The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
140 140  
116 +* Power Source VIN to RS485-LN VIN+
117 +* Power Source GND to RS485-LN VIN-
118 +
141 141  (((
142 -Release version ​​​​​
120 +Once there is power, the RS485-LN will be on.
143 143  )))
144 144  
145 -= 2. Pin mapping and Power ON Device =
146 -
147 -(((
148 -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.
123 +[[image:1653268091319-405.png]]
149 149  )))
150 150  
151 -[[image:1652953055962-143.png||height="387" width="728"]]
152 -
153 -
154 -The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
155 -
156 156  = 3. Operation Mode =
157 157  
158 158  == 3.1 How it works? ==
159 159  
160 160  (((
161 -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.
131 +The RS485-LN is configured as LoRaWAN OTAA Class C 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-LN. It will auto join the network via OTAA.
162 162  )))
163 163  
164 164  == 3.2 Example to join LoRaWAN network ==
... ... @@ -165,27 +165,32 @@
165 165  
166 166  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. 
167 167  
168 -[[image:1652953414711-647.png||height="337" width="723"]]
138 +[[image:1653268155545-638.png||height="334" width="724"]]
169 169  
170 170  (((
171 -The RS485-BL in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method.
172 -)))
141 +The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
173 173  
143 +485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
144 +
145 +[[image:1653268227651-549.png||height="592" width="720"]]
146 +
174 174  (((
175 -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:
148 +The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
176 176  )))
177 177  
178 178  (((
179 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-BL.
152 +**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
180 180  )))
181 181  
182 182  (((
183 -Each RS485-BL is shipped with a sticker with unique device EUI:
156 +Each RS485-LN is shipped with a sticker with unique device EUI:
184 184  )))
158 +)))
185 185  
186 186  [[image:1652953462722-299.png]]
187 187  
188 188  (((
163 +(((
189 189  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
190 190  )))
191 191  
... ... @@ -192,13 +192,11 @@
192 192  (((
193 193  Add APP EUI in the application.
194 194  )))
170 +)))
195 195  
196 -
197 -
198 -
199 199  [[image:image-20220519174512-1.png]]
200 200  
201 -[[image:image-20220519174512-2.png||height="328" width="731"]]
174 +[[image:image-20220519174512-2.png||height="323" width="720"]]
202 202  
203 203  [[image:image-20220519174512-3.png||height="556" width="724"]]
204 204  
... ... @@ -214,147 +214,176 @@
214 214  
215 215  
216 216  (((
217 -**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.
190 +**Step 2**: Power on RS485-LN 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.
218 218  )))
219 219  
220 220  [[image:1652953568895-172.png||height="232" width="724"]]
221 221  
195 +== 3.3 Configure Commands to read data ==
222 222  
197 +(((
198 +(((
199 +There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
200 +)))
223 223  
202 +(((
203 +(% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
204 +)))
205 +)))
224 224  
225 -1.
226 -11. Configure Commands to read data
207 +=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
227 227  
228 -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>>path:#AT_COMMAND]] Command to configure how RS485-BL should read the sensor and how to handle the return from RS485 or TTL sensors.
209 +To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
229 229  
230 -
231 -1.
232 -11.
233 -111. Configure UART settings for RS485 or TTL communication
234 -
235 -RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
236 -
237 -1. RS485-MODBUS mode:
238 -
239 -AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
240 -
241 -
242 -1. TTL mode:
243 -
244 -AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
245 -
246 -
247 -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.
248 -
249 -
250 -|**AT Commands**|**Description**|**Example**
251 -|AT+BAUDR|Set the baud rate (for RS485 connection). Default Value is: 9600.|(((
211 +(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
212 +|(((
213 +**AT Commands**
214 +)))|(% style="width:285px" %)(((
215 +**Description**
216 +)))|(% style="width:347px" %)(((
217 +**Example**
218 +)))
219 +|(((
220 +AT+BAUDR
221 +)))|(% style="width:285px" %)(((
222 +Set the baud rate (for RS485 connection). Default Value is: 9600.
223 +)))|(% style="width:347px" %)(((
224 +(((
252 252  AT+BAUDR=9600
226 +)))
253 253  
228 +(((
254 254  Options: (1200,2400,4800,14400,19200,115200)
255 255  )))
256 -|AT+PARITY|(((
231 +)))
232 +|(((
233 +AT+PARITY
234 +)))|(% style="width:285px" %)(((
257 257  Set UART parity (for RS485 connection)
258 -
259 -Default Value is: no parity.
260 -)))|(((
236 +)))|(% style="width:347px" %)(((
237 +(((
261 261  AT+PARITY=0
239 +)))
262 262  
241 +(((
263 263  Option: 0: no parity, 1: odd parity, 2: even parity
264 264  )))
265 -|AT+STOPBIT|(((
244 +)))
245 +|(((
246 +AT+STOPBIT
247 +)))|(% style="width:285px" %)(((
248 +(((
266 266  Set serial stopbit (for RS485 connection)
250 +)))
267 267  
268 -Default Value is: 1bit.
269 -)))|(((
252 +(((
253 +
254 +)))
255 +)))|(% style="width:347px" %)(((
256 +(((
270 270  AT+STOPBIT=0 for 1bit
258 +)))
271 271  
260 +(((
272 272  AT+STOPBIT=1 for 1.5 bit
262 +)))
273 273  
264 +(((
274 274  AT+STOPBIT=2 for 2 bits
275 275  )))
267 +)))
276 276  
269 +=== 3.3.2 Configure sensors ===
277 277  
271 +(((
272 +(((
273 +Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
274 +)))
275 +)))
278 278  
279 -
280 -1.
281 -11.
282 -111. Configure sensors
283 -
284 -Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands AT+CFGDEV.
285 -
286 -
287 -When user issue an AT+CFGDEV command, Each 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.
288 -
289 -|**AT Commands**|**Description**|**Example**
290 -|AT+CFGDEV|(((
277 +(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
278 +|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
279 +|AT+CFGDEV|(% style="width:418px" %)(((
291 291  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
292 292  
293 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
282 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
294 294  
295 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
296 -)))|AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
284 +mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
285 +)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
297 297  
298 -Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
287 +=== 3.3.3 Configure read commands for each sampling ===
299 299  
300 -
301 -
302 -
303 -
304 -1.
305 -11.
306 -111. Configure read commands for each sampling
307 -
289 +(((
308 308  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.
291 +)))
309 309  
310 -
293 +(((
311 311  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.
295 +)))
312 312  
313 -
297 +(((
314 314  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
299 +)))
315 315  
316 -
301 +(((
317 317  This section describes how to achieve above goals.
303 +)))
318 318  
319 -
305 +(((
320 320  During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
307 +)))
321 321  
322 -
309 +(((
323 323  **Command from RS485-BL to Sensor:**
311 +)))
324 324  
313 +(((
325 325  RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
315 +)))
326 326  
327 -
317 +(((
328 328  **Handle return from sensors to RS485-BL**:
319 +)))
329 329  
321 +(((
330 330  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**
323 +)))
331 331  
325 +* (((
326 +**AT+DATACUT**
327 +)))
332 332  
333 -* **AT+DATACUT**
334 -
329 +(((
335 335  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.
331 +)))
336 336  
333 +* (((
334 +**AT+SEARCH**
335 +)))
337 337  
338 -* **AT+SEARCH**
339 -
337 +(((
340 340  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.
339 +)))
341 341  
342 -
341 +(((
343 343  **Define wait timeout:**
343 +)))
344 344  
345 +(((
345 345  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
347 +)))
346 346  
347 -
349 +(((
348 348  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
351 +)))
349 349  
350 -
351 351  **Examples:**
352 352  
353 353  Below are examples for the how above AT Commands works.
354 354  
355 -
356 356  **AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
357 357  
359 +(% border="1" class="table-bordered" %)
358 358  |(((
359 359  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
360 360  
... ... @@ -363,13 +363,19 @@
363 363  **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
364 364  )))
365 365  
368 +(((
366 366  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.
370 +)))
367 367  
372 +(((
368 368  In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
374 +)))
369 369  
370 -
376 +(((
371 371  **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
378 +)))
372 372  
380 +(% border="1" class="table-bordered" %)
373 373  |(((
374 374  **AT+SEARCHx=aa,xx xx xx xx xx**
375 375  
... ... @@ -379,26 +379,24 @@
379 379  
380 380  )))
381 381  
382 -Examples:
390 +**Examples:**
383 383  
384 -1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
392 +~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
385 385  
386 386  If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
387 387  
388 -The valid data will be all bytes after 1E 56 34 , so it is 2e 30 58 5f 36 41 30 31 00 49
396 +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**
389 389  
390 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
398 +[[image:1653269403619-508.png]]
391 391  
400 +2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
392 392  
393 -1. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
394 -
395 395  If we set AT+SEARCH1=2, 1E 56 34+31 00 49
396 396  
397 -Device will search the bytes between 1E 56 34 and 31 00 49. So it is 2e 30 58 5f 36 41 30
404 +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**
398 398  
399 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
406 +[[image:1653269438444-278.png]]
400 400  
401 -
402 402  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
403 403  
404 404  |(((
... ... @@ -413,58 +413,63 @@
413 413  
414 414  * Grab bytes:
415 415  
416 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
422 +[[image:1653269551753-223.png||height="311" width="717"]]
417 417  
418 418  * Grab a section.
419 419  
420 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
426 +[[image:1653269568276-930.png||height="325" width="718"]]
421 421  
422 422  * Grab different sections.
423 423  
424 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
430 +[[image:1653269593172-426.png||height="303" width="725"]]
425 425  
432 +(% style="color:red" %)**Note:**
426 426  
427 -Note:
428 -
429 429  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.
430 430  
431 431  Example:
432 432  
433 -AT+COMMAND1=11 01 1E D0,0
438 +(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
434 434  
435 -AT+SEARCH1=1,1E 56 34
440 +(% style="color:red" %)AT+SEARCH1=1,1E 56 34
436 436  
437 -AT+DATACUT1=0,2,1~~5
442 +(% style="color:red" %)AT+DATACUT1=0,2,1~~5
438 438  
439 -Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
444 +(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
440 440  
441 -String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
446 +(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
442 442  
443 -Valid payload after DataCUT command: 2e 30 58 5f 36
448 +(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
444 444  
445 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
450 +[[image:1653269618463-608.png]]
446 446  
452 +=== 3.3.4 Compose the uplink payload ===
447 447  
448 -
449 -
450 -1.
451 -11.
452 -111. Compose the uplink payload
453 -
454 +(((
454 454  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.**
456 +)))
455 455  
458 +(((
459 +(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
460 +)))
456 456  
457 -**Examples: AT+DATAUP=0**
462 +(((
463 +Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
464 +)))
458 458  
459 -Compose the uplink payload with value returns in sequence and send with **A SIGNLE UPLINK**.
460 -
466 +(((
461 461  Final Payload is
468 +)))
462 462  
463 -Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
470 +(((
471 +(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
472 +)))
464 464  
474 +(((
465 465  Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
476 +)))
466 466  
467 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
478 +[[image:1653269759169-150.png]]
468 468  
469 469  
470 470  
... ... @@ -512,8 +512,8 @@
512 512  
513 513  
514 514  
515 -1.
516 -11.
526 +1.
527 +11.
517 517  111. Uplink on demand
518 518  
519 519  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.
... ... @@ -526,8 +526,8 @@
526 526  
527 527  
528 528  
529 -1.
530 -11.
540 +1.
541 +11.
531 531  111. Uplink on Interrupt
532 532  
533 533  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -541,7 +541,7 @@
541 541  AT+INTMOD=3  Interrupt trigger by rising edge.
542 542  
543 543  
544 -1.
555 +1.
545 545  11. Uplink Payload
546 546  
547 547  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
... ... @@ -603,15 +603,15 @@
603 603  
604 604  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
605 605  
606 -1.
607 -11.
617 +1.
618 +11.
608 608  111. Common Commands:
609 609  
610 610  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: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
611 611  
612 612  
613 -1.
614 -11.
624 +1.
625 +11.
615 615  111. Sensor related commands:
616 616  
617 617  ==== Choose Device Type (RS485 or TTL) ====
... ... @@ -917,13 +917,13 @@
917 917  
918 918  
919 919  
920 -1.
931 +1.
921 921  11. Buttons
922 922  
923 923  |**Button**|**Feature**
924 924  |**RST**|Reboot RS485-BL
925 925  
926 -1.
937 +1.
927 927  11. +3V3 Output
928 928  
929 929  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -941,7 +941,7 @@
941 941  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
942 942  
943 943  
944 -1.
955 +1.
945 945  11. +5V Output
946 946  
947 947  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -961,13 +961,13 @@
961 961  
962 962  
963 963  
964 -1.
975 +1.
965 965  11. LEDs
966 966  
967 967  |**LEDs**|**Feature**
968 968  |**LED1**|Blink when device transmit a packet.
969 969  
970 -1.
981 +1.
971 971  11. Switch Jumper
972 972  
973 973  |**Switch Jumper**|**Feature**
... ... @@ -1013,7 +1013,7 @@
1013 1013  
1014 1014  
1015 1015  
1016 -1.
1027 +1.
1017 1017  11. Common AT Command Sequence
1018 1018  111. Multi-channel ABP mode (Use with SX1301/LG308)
1019 1019  
... ... @@ -1032,8 +1032,8 @@
1032 1032  
1033 1033  ATZ
1034 1034  
1035 -1.
1036 -11.
1046 +1.
1047 +11.
1037 1037  111. Single-channel ABP mode (Use with LG01/LG02)
1038 1038  
1039 1039  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1108,7 +1108,7 @@
1108 1108  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1109 1109  
1110 1110  
1111 -1.
1122 +1.
1112 1112  11. How to change the LoRa Frequency Bands/Region?
1113 1113  
1114 1114  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1115,7 +1115,7 @@
1115 1115  
1116 1116  
1117 1117  
1118 -1.
1129 +1.
1119 1119  11. How many RS485-Slave can RS485-BL connects?
1120 1120  
1121 1121  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>>path:#downlink_A8]].
... ... @@ -1132,7 +1132,7 @@
1132 1132  
1133 1133  
1134 1134  
1135 -1.
1146 +1.
1136 1136  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1137 1137  
1138 1138  It might about the channels mapping. Please see for detail.
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