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Last modified by Xiaoling on 2025/04/23 15:56
From version 3.2
edited by Xiaoling
on 2022/05/19 17:30
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To version 22.5
edited by Xiaoling
on 2022/05/23 09:15
Change comment: There is no comment for this version

Summary

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Title
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1 -RS485-BL – Waterproof RS485 to LoRaWAN Converter
1 +RS485-LN – RS485 to LoRaWAN Converter
Content
... ... @@ -1,13 +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 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.jpg]]
5 5  
6 6  
6 +**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 -**RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
9 9  
10 -
11 11  **Table of Contents:**
12 12  
13 13  
... ... @@ -16,65 +16,45 @@
16 16  
17 17  = 1.Introduction =
18 18  
19 -== 1.1 What is RS485-BL RS485 to LoRaWAN Converter ==
17 +== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
20 20  
21 21  (((
22 -
23 -)))
24 -
25 25  (((
26 -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.
27 27  )))
28 28  
29 29  (((
30 -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.
31 31  )))
32 32  
33 33  (((
34 -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.
35 35  )))
36 36  
37 37  (((
38 -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.
39 39  )))
40 -
41 -(((
42 -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.
43 43  )))
44 44  
45 -(((
46 -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.
47 -)))
37 +[[image:1653267211009-519.png||height="419" width="724"]]
48 48  
49 -(((
50 -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.
51 -)))
52 -
53 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]]
54 -
55 55  == 1.2 Specifications ==
56 56  
57 57  **Hardware System:**
58 58  
59 59  * STM32L072CZT6 MCU
60 -* SX1276/78 Wireless Chip
44 +* SX1276/78 Wireless Chip 
61 61  * Power Consumption (exclude RS485 device):
62 -** Idle: 6uA@3.3v
46 +** Idle: 32mA@12v
63 63  
64 -*
65 -** 20dB Transmit: 130mA@3.3v
48 +*
49 +** 20dB Transmit: 65mA@12v
66 66  
67 -
68 68  **Interface for Model:**
69 69  
70 -* 1 x RS485 Interface
71 -* 1 x TTL Serial , 3.3v or 5v.
72 -* 1 x I2C Interface, 3.3v or 5v.
73 -* 1 x one wire interface
74 -* 1 x Interrupt Interface
75 -* 1 x Controllable 5V output, max
53 +* RS485
54 +* Power Input 7~~ 24V DC. 
76 76  
77 -
78 78  **LoRa Spec:**
79 79  
80 80  * Frequency Range:
... ... @@ -82,32 +82,33 @@
82 82  ** Band 2 (LF): 410 ~~ 528 Mhz
83 83  * 168 dB maximum link budget.
84 84  * +20 dBm - 100 mW constant RF output vs.
63 +* +14 dBm high efficiency PA.
85 85  * Programmable bit rate up to 300 kbps.
86 86  * High sensitivity: down to -148 dBm.
87 87  * Bullet-proof front end: IIP3 = -12.5 dBm.
88 88  * Excellent blocking immunity.
68 +* Low RX current of 10.3 mA, 200 nA register retention.
89 89  * Fully integrated synthesizer with a resolution of 61 Hz.
90 -* LoRa modulation.
70 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
91 91  * Built-in bit synchronizer for clock recovery.
92 92  * Preamble detection.
93 93  * 127 dB Dynamic Range RSSI.
94 94  * Automatic RF Sense and CAD with ultra-fast AFC.
75 +* Packet engine up to 256 bytes with CRC.
95 95  
77 +== 1.3 Features ==
96 96  
97 -*
98 -*1. Features
99 -* LoRaWAN Class A & Class C protocol (default Class A)
79 +* LoRaWAN Class A & Class C protocol (default Class C)
100 100  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
101 101  * AT Commands to change parameters
102 -* Remote configure parameters via LoRaWAN Downlink
82 +* Remote configure parameters via LoRa Downlink
103 103  * Firmware upgradable via program port
104 104  * Support multiply RS485 devices by flexible rules
105 105  * Support Modbus protocol
106 -* Support Interrupt uplink
86 +* Support Interrupt uplink (Since hardware version v1.2)
107 107  
88 +== 1.4 Applications ==
108 108  
109 -*
110 -*1. Applications
111 111  * Smart Buildings & Home Automation
112 112  * Logistics and Supply Chain Management
113 113  * Smart Metering
... ... @@ -115,263 +115,289 @@
115 115  * Smart Cities
116 116  * Smart Factory
117 117  
97 +== 1.5 Firmware Change log ==
118 118  
119 -1.
120 -11. Firmware Change log
99 +[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
121 121  
122 -[[RS485-BL Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Firmware/]]
101 +== 1.6 Hardware Change log ==
123 123  
103 +(((
104 +(((
105 +v1.2: Add External Interrupt Pin.
124 124  
125 -1.
126 -11. Hardware Change log
107 +v1.0: Release
108 +)))
109 +)))
127 127  
111 += 2. Power ON Device =
128 128  
129 -v1.4
113 +(((
114 +The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
130 130  
131 -~1. Change Power IC to TPS22916
116 +* Power Source VIN to RS485-LN VIN+
117 +* Power Source GND to RS485-LN VIN-
132 132  
119 +(((
120 +Once there is power, the RS485-LN will be on.
121 +)))
133 133  
134 -v1.3
123 +[[image:1653268091319-405.png]]
124 +)))
135 135  
136 -~1. Change JP3 from KF350-8P to KF350-11P, Add one extra interface for I2C and one extra interface for one-wire
126 += 3. Operation Mode =
137 137  
128 +== 3.1 How it works? ==
138 138  
139 -v1.2
130 +(((
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.
132 +)))
140 140  
141 -Release version
134 +== 3.2 Example to join LoRaWAN network ==
142 142  
136 +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. 
143 143  
138 +[[image:1653268155545-638.png||height="334" width="724"]]
144 144  
140 +(((
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:
145 145  
143 +485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
146 146  
147 -1. Pin mapping and Power ON Device
145 +[[image:1653268227651-549.png||height="592" width="720"]]
148 148  
149 -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.
147 +(((
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:
149 +)))
150 150  
151 +(((
152 +**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
153 +)))
151 151  
152 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]]
155 +(((
156 +Each RS485-LN is shipped with a sticker with unique device EUI:
157 +)))
158 +)))
153 153  
160 +[[image:1652953462722-299.png]]
154 154  
155 -
156 -The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
157 -
158 -
159 -
160 -
161 -
162 -
163 -1. Operation Mode
164 -11. How it works?
165 -
166 -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.
167 -
168 -
169 -1.
170 -11. Example to join LoRaWAN network
171 -
172 -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.
173 -
174 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
175 -
176 -
177 -The RS485-BL in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method.
178 -
179 -
180 -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:
181 -
182 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-BL.
183 -
184 -Each RS485-BL is shipped with a sticker with unique device EUI:
185 -
186 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png]]
187 -
188 -
189 -
190 -
162 +(((
163 +(((
191 191  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
165 +)))
192 192  
167 +(((
193 193  Add APP EUI in the application.
169 +)))
170 +)))
194 194  
195 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.png]]
172 +[[image:image-20220519174512-1.png]]
196 196  
197 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]]
174 +[[image:image-20220519174512-2.png||height="323" width="720"]]
198 198  
199 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.png]]
176 +[[image:image-20220519174512-3.png||height="556" width="724"]]
200 200  
201 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image009.png]]
178 +[[image:image-20220519174512-4.png]]
202 202  
203 -
204 -
205 -
206 -
207 -
208 -
209 -
210 -
211 -
212 -
213 -
214 -
215 -
216 -
217 -
218 -
219 219  You can also choose to create the device manually.
220 220  
221 -|(((
222 -
223 -)))
182 +[[image:1652953542269-423.png||height="710" width="723"]]
224 224  
225 -
226 -
227 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
228 -
229 229  Add APP KEY and DEV EUI
230 230  
231 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
186 +[[image:1652953553383-907.png||height="514" width="724"]]
232 232  
233 233  
234 -**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.
189 +(((
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.
191 +)))
235 235  
236 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
193 +[[image:1652953568895-172.png||height="232" width="724"]]
237 237  
195 +== 3.3 Configure Commands to read data ==
238 238  
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 +)))
239 239  
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 +)))
240 240  
241 -1.
242 -11. Configure Commands to read data
207 +=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
243 243  
244 -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.
245 -
246 -
247 -1.
248 -11.
249 -111. Configure UART settings for RS485 or TTL communication
250 -
251 251  RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
252 252  
253 -1. RS485-MODBUS mode:
211 +**~1. RS485-MODBUS mode:**
254 254  
255 255  AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
256 256  
215 +**2. TTL mode:**
257 257  
258 -1. TTL mode:
259 -
260 260  AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
261 261  
262 -
263 263  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.
264 264  
265 -
266 -|**AT Commands**|**Description**|**Example**
267 -|AT+BAUDR|Set the baud rate (for RS485 connection). Default Value is: 9600.|(((
221 +(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
222 +|(((
223 +**AT Commands**
224 +)))|(% style="width:285px" %)(((
225 +**Description**
226 +)))|(% style="width:347px" %)(((
227 +**Example**
228 +)))
229 +|(((
230 +AT+BAUDR
231 +)))|(% style="width:285px" %)(((
232 +Set the baud rate (for RS485 connection). Default Value is: 9600.
233 +)))|(% style="width:347px" %)(((
234 +(((
268 268  AT+BAUDR=9600
236 +)))
269 269  
238 +(((
270 270  Options: (1200,2400,4800,14400,19200,115200)
271 271  )))
272 -|AT+PARITY|(((
241 +)))
242 +|(((
243 +AT+PARITY
244 +)))|(% style="width:285px" %)(((
245 +(((
273 273  Set UART parity (for RS485 connection)
247 +)))
274 274  
249 +(((
275 275  Default Value is: no parity.
276 -)))|(((
251 +)))
252 +)))|(% style="width:347px" %)(((
253 +(((
277 277  AT+PARITY=0
255 +)))
278 278  
257 +(((
279 279  Option: 0: no parity, 1: odd parity, 2: even parity
280 280  )))
281 -|AT+STOPBIT|(((
260 +)))
261 +|(((
262 +AT+STOPBIT
263 +)))|(% style="width:285px" %)(((
264 +(((
282 282  Set serial stopbit (for RS485 connection)
266 +)))
283 283  
268 +(((
284 284  Default Value is: 1bit.
285 -)))|(((
270 +)))
271 +)))|(% style="width:347px" %)(((
272 +(((
286 286  AT+STOPBIT=0 for 1bit
274 +)))
287 287  
276 +(((
288 288  AT+STOPBIT=1 for 1.5 bit
278 +)))
289 289  
280 +(((
290 290  AT+STOPBIT=2 for 2 bits
291 291  )))
283 +)))
292 292  
285 +=== 3.3.2 Configure sensors ===
293 293  
287 +(((
288 +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**.
289 +)))
294 294  
291 +(((
292 +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.
293 +)))
295 295  
296 -
297 -1.
298 -11.
299 -111. Configure sensors
300 -
301 -Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands AT+CFGDEV.
302 -
303 -
304 -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.
305 -
306 -|**AT Commands**|**Description**|**Example**
307 -|AT+CFGDEV|(((
295 +(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
296 +|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
297 +|AT+CFGDEV|(% style="width:418px" %)(((
308 308  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
309 309  
310 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
300 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
311 311  
312 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
313 -)))|AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
302 +mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
303 +)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
314 314  
315 315  Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
316 316  
307 +=== 3.3.3 Configure read commands for each sampling ===
317 317  
318 -
319 -
320 -
321 -1.
322 -11.
323 -111. Configure read commands for each sampling
324 -
309 +(((
325 325  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.
311 +)))
326 326  
327 -
313 +(((
328 328  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.
315 +)))
329 329  
330 -
317 +(((
331 331  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
319 +)))
332 332  
333 -
321 +(((
334 334  This section describes how to achieve above goals.
323 +)))
335 335  
336 -
325 +(((
337 337  During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
327 +)))
338 338  
339 -
329 +(((
340 340  **Command from RS485-BL to Sensor:**
331 +)))
341 341  
333 +(((
342 342  RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
335 +)))
343 343  
344 -
337 +(((
345 345  **Handle return from sensors to RS485-BL**:
339 +)))
346 346  
341 +(((
347 347  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**
343 +)))
348 348  
345 +* (((
346 +**AT+DATACUT**
347 +)))
349 349  
350 -* **AT+DATACUT**
351 -
349 +(((
352 352  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.
351 +)))
353 353  
353 +* (((
354 +**AT+SEARCH**
355 +)))
354 354  
355 -* **AT+SEARCH**
356 -
357 +(((
357 357  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.
359 +)))
358 358  
359 -
361 +(((
360 360  **Define wait timeout:**
363 +)))
361 361  
365 +(((
362 362  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
367 +)))
363 363  
364 -
369 +(((
365 365  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
371 +)))
366 366  
367 -
368 368  **Examples:**
369 369  
370 370  Below are examples for the how above AT Commands works.
371 371  
372 -
373 373  **AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
374 374  
379 +(% border="1" class="table-bordered" %)
375 375  |(((
376 376  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
377 377  
... ... @@ -384,9 +384,9 @@
384 384  
385 385  In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
386 386  
387 -
388 388  **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
389 389  
394 +(% border="1" class="table-bordered" %)
390 390  |(((
391 391  **AT+SEARCHx=aa,xx xx xx xx xx**
392 392  
... ... @@ -404,7 +404,7 @@
404 404  
405 405  The valid data will be all bytes after 1E 56 34 , so it is 2e 30 58 5f 36 41 30 31 00 49
406 406  
407 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
412 +[[image:1652954654347-831.png]]
408 408  
409 409  
410 410  1. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
... ... @@ -423,7 +423,7 @@
423 423  
424 424  * **a: length for the return of AT+COMMAND**
425 425  * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
426 -* **c: define the position for valid value. **
431 +* **c: define the position for valid value.  **
427 427  )))
428 428  
429 429  Examples:
... ... @@ -464,8 +464,8 @@
464 464  
465 465  
466 466  
467 -1.
468 -11.
472 +1.
473 +11.
469 469  111. Compose the uplink payload
470 470  
471 471  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.**
... ... @@ -529,8 +529,8 @@
529 529  
530 530  
531 531  
532 -1.
533 -11.
537 +1.
538 +11.
534 534  111. Uplink on demand
535 535  
536 536  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.
... ... @@ -543,8 +543,8 @@
543 543  
544 544  
545 545  
546 -1.
547 -11.
551 +1.
552 +11.
548 548  111. Uplink on Interrupt
549 549  
550 550  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -558,10 +558,9 @@
558 558  AT+INTMOD=3  Interrupt trigger by rising edge.
559 559  
560 560  
561 -1.
566 +1.
562 562  11. Uplink Payload
563 563  
564 -
565 565  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
566 566  |Value|(((
567 567  Battery(mV)
... ... @@ -610,7 +610,7 @@
610 610  
611 611  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
612 612  
613 -1.
617 +1.
614 614  11. Configure RS485-BL via AT or Downlink
615 615  
616 616  User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
... ... @@ -621,20 +621,17 @@
621 621  
622 622  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
623 623  
624 -
625 -1.
626 -11.
628 +1.
629 +11.
627 627  111. Common Commands:
628 628  
629 -
630 630  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]]
631 631  
632 632  
633 -1.
634 -11.
635 +1.
636 +11.
635 635  111. Sensor related commands:
636 636  
637 -
638 638  ==== Choose Device Type (RS485 or TTL) ====
639 639  
640 640  RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
... ... @@ -675,7 +675,6 @@
675 675  * XX XX XX XX: RS485 command total NN bytes
676 676  * 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
677 677  
678 -
679 679  **Example 1:**
680 680  
681 681  To connect a Modbus Alarm with below commands.
... ... @@ -784,7 +784,6 @@
784 784  
785 785  * AT+MBFUN=0: Disable Modbus fast reading.
786 786  
787 -
788 788  Example:
789 789  
790 790  * AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
... ... @@ -869,7 +869,7 @@
869 869  
870 870  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
871 871  
872 -Example screen shot after clear all RS485 commands.
871 +Example screen shot after clear all RS485 commands. 
873 873  
874 874  
875 875  
... ... @@ -913,7 +913,6 @@
913 913  * A7 01 00 60   same as AT+BAUDR=9600
914 914  * A7 01 04 80  same as AT+BAUDR=115200
915 915  
916 -
917 917  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
918 918  
919 919  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
... ... @@ -941,20 +941,18 @@
941 941  
942 942  
943 943  
944 -1.
942 +1.
945 945  11. Buttons
946 946  
947 -
948 948  |**Button**|**Feature**
949 949  |**RST**|Reboot RS485-BL
950 950  
951 -
952 -1.
948 +1.
953 953  11. +3V3 Output
954 954  
955 955  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
956 956  
957 -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.
953 +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. 
958 958  
959 959  
960 960  The +3V3 output time can be controlled by AT Command.
... ... @@ -967,12 +967,12 @@
967 967  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
968 968  
969 969  
970 -1.
966 +1.
971 971  11. +5V Output
972 972  
973 973  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
974 974  
975 -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.
971 +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. 
976 976  
977 977  
978 978  The 5V output time can be controlled by AT Command.
... ... @@ -987,14 +987,13 @@
987 987  
988 988  
989 989  
990 -1.
986 +1.
991 991  11. LEDs
992 992  
993 993  |**LEDs**|**Feature**
994 994  |**LED1**|Blink when device transmit a packet.
995 995  
996 -
997 -1.
992 +1.
998 998  11. Switch Jumper
999 999  
1000 1000  |**Switch Jumper**|**Feature**
... ... @@ -1015,7 +1015,6 @@
1015 1015  
1016 1016  1. Case Study
1017 1017  
1018 -
1019 1019  User can check this URL for some case studies.
1020 1020  
1021 1021  [[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
... ... @@ -1041,7 +1041,7 @@
1041 1041  
1042 1042  
1043 1043  
1044 -1.
1038 +1.
1045 1045  11. Common AT Command Sequence
1046 1046  111. Multi-channel ABP mode (Use with SX1301/LG308)
1047 1047  
... ... @@ -1060,8 +1060,8 @@
1060 1060  
1061 1061  ATZ
1062 1062  
1063 -1.
1064 -11.
1057 +1.
1058 +11.
1065 1065  111. Single-channel ABP mode (Use with LG01/LG02)
1066 1066  
1067 1067  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1103,7 +1103,6 @@
1103 1103  * For bug fix
1104 1104  * Change LoRaWAN bands.
1105 1105  
1106 -
1107 1107  Below shows the hardware connection for how to upload an image to RS485-BL:
1108 1108  
1109 1109  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
... ... @@ -1137,7 +1137,7 @@
1137 1137  [[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]]
1138 1138  
1139 1139  
1140 -1.
1133 +1.
1141 1141  11. How to change the LoRa Frequency Bands/Region?
1142 1142  
1143 1143  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1144,10 +1144,9 @@
1144 1144  
1145 1145  
1146 1146  
1147 -1.
1140 +1.
1148 1148  11. How many RS485-Slave can RS485-BL connects?
1149 1149  
1150 -
1151 1151  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]].
1152 1152  
1153 1153  
... ... @@ -1158,11 +1158,11 @@
1158 1158  
1159 1159  Please see this link for debug:
1160 1160  
1161 -[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]]
1153 +[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]] 
1162 1162  
1163 1163  
1164 1164  
1165 -1.
1157 +1.
1166 1166  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1167 1167  
1168 1168  It might about the channels mapping. Please see for detail.
... ... @@ -1173,7 +1173,6 @@
1173 1173  
1174 1174  1. Order Info
1175 1175  
1176 -
1177 1177  **Part Number: RS485-BL-XXX**
1178 1178  
1179 1179  **XXX:**
... ... @@ -1189,7 +1189,6 @@
1189 1189  * **RU864**: frequency bands RU864
1190 1190  * **KZ865: **frequency bands KZ865
1191 1191  
1192 -
1193 1193  1. Packing Info
1194 1194  
1195 1195  **Package Includes**:
... ... @@ -1198,7 +1198,6 @@
1198 1198  * Stick Antenna for LoRa RF part x 1
1199 1199  * Program cable x 1
1200 1200  
1201 -
1202 1202  **Dimension and weight**:
1203 1203  
1204 1204  * Device Size: 13.5 x 7 x 3 cm
... ... @@ -1206,7 +1206,6 @@
1206 1206  * Package Size / pcs : 14.5 x 8 x 5 cm
1207 1207  * Weight / pcs : 170g
1208 1208  
1209 -
1210 1210  1. Support
1211 1211  
1212 1212  * 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.
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