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Last modified by Xiaoling on 2025/04/23 15:56
From version 3.3
edited by Xiaoling
on 2022/05/19 17:32
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To version 22.6
edited by Xiaoling
on 2022/05/23 09:17
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  
... ... @@ -16,62 +16,44 @@
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 67  **Interface for Model:**
68 68  
69 -* 1 x RS485 Interface
70 -* 1 x TTL Serial , 3.3v or 5v.
71 -* 1 x I2C Interface, 3.3v or 5v.
72 -* 1 x one wire interface
73 -* 1 x Interrupt Interface
74 -* 1 x Controllable 5V output, max
53 +* RS485
54 +* Power Input 7~~ 24V DC. 
75 75  
76 76  **LoRa Spec:**
77 77  
... ... @@ -80,27 +80,30 @@
80 80  ** Band 2 (LF): 410 ~~ 528 Mhz
81 81  * 168 dB maximum link budget.
82 82  * +20 dBm - 100 mW constant RF output vs.
63 +* +14 dBm high efficiency PA.
83 83  * Programmable bit rate up to 300 kbps.
84 84  * High sensitivity: down to -148 dBm.
85 85  * Bullet-proof front end: IIP3 = -12.5 dBm.
86 86  * Excellent blocking immunity.
68 +* Low RX current of 10.3 mA, 200 nA register retention.
87 87  * Fully integrated synthesizer with a resolution of 61 Hz.
88 -* LoRa modulation.
70 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
89 89  * Built-in bit synchronizer for clock recovery.
90 90  * Preamble detection.
91 91  * 127 dB Dynamic Range RSSI.
92 -* 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.
93 93  
94 94  == 1.3 Features ==
95 95  
96 -* LoRaWAN Class A & Class C protocol (default Class A)
79 +* LoRaWAN Class A & Class C protocol (default Class C)
97 97  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
98 98  * AT Commands to change parameters
99 -* Remote configure parameters via LoRaWAN Downlink
82 +* Remote configure parameters via LoRa Downlink
100 100  * Firmware upgradable via program port
101 101  * Support multiply RS485 devices by flexible rules
102 102  * Support Modbus protocol
103 -* Support Interrupt uplink
86 +* Support Interrupt uplink (Since hardware version v1.2)
104 104  
105 105  == 1.4 Applications ==
106 106  
... ... @@ -111,263 +111,273 @@
111 111  * Smart Cities
112 112  * Smart Factory
113 113  
97 +== 1.5 Firmware Change log ==
114 114  
115 -1.
116 -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/]]
117 117  
118 -[[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 ==
119 119  
103 +(((
104 +(((
105 +v1.2: Add External Interrupt Pin.
120 120  
121 -1.
122 -11. Hardware Change log
107 +v1.0: Release
108 +)))
109 +)))
123 123  
111 += 2. Power ON Device =
124 124  
125 -v1.4
113 +(((
114 +The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
126 126  
127 -~1. Change Power IC to TPS22916
116 +* Power Source VIN to RS485-LN VIN+
117 +* Power Source GND to RS485-LN VIN-
128 128  
119 +(((
120 +Once there is power, the RS485-LN will be on.
121 +)))
129 129  
130 -v1.3
123 +[[image:1653268091319-405.png]]
124 +)))
131 131  
132 -~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 =
133 133  
128 +== 3.1 How it works? ==
134 134  
135 -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 +)))
136 136  
137 -Release version
134 +== 3.2 Example to join LoRaWAN network ==
138 138  
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. 
139 139  
138 +[[image:1653268155545-638.png||height="334" width="724"]]
140 140  
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:
141 141  
143 +485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
142 142  
143 -1. Pin mapping and Power ON Device
145 +[[image:1653268227651-549.png||height="592" width="720"]]
144 144  
145 -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 +)))
146 146  
151 +(((
152 +**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
153 +)))
147 147  
148 -[[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 +)))
149 149  
160 +[[image:1652953462722-299.png]]
150 150  
151 -
152 -The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
153 -
154 -
155 -
156 -
157 -
158 -
159 -1. Operation Mode
160 -11. How it works?
161 -
162 -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.
163 -
164 -
165 -1.
166 -11. Example to join LoRaWAN network
167 -
168 -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.
169 -
170 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
171 -
172 -
173 -The RS485-BL in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method.
174 -
175 -
176 -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:
177 -
178 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-BL.
179 -
180 -Each RS485-BL is shipped with a sticker with unique device EUI:
181 -
182 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png]]
183 -
184 -
185 -
186 -
162 +(((
163 +(((
187 187  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
165 +)))
188 188  
167 +(((
189 189  Add APP EUI in the application.
169 +)))
170 +)))
190 190  
191 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.png]]
172 +[[image:image-20220519174512-1.png]]
192 192  
193 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]]
174 +[[image:image-20220519174512-2.png||height="323" width="720"]]
194 194  
195 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.png]]
176 +[[image:image-20220519174512-3.png||height="556" width="724"]]
196 196  
197 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image009.png]]
178 +[[image:image-20220519174512-4.png]]
198 198  
199 -
200 -
201 -
202 -
203 -
204 -
205 -
206 -
207 -
208 -
209 -
210 -
211 -
212 -
213 -
214 -
215 215  You can also choose to create the device manually.
216 216  
217 -|(((
218 -
219 -)))
182 +[[image:1652953542269-423.png||height="710" width="723"]]
220 220  
221 -
222 -
223 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
224 -
225 225  Add APP KEY and DEV EUI
226 226  
227 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
186 +[[image:1652953553383-907.png||height="514" width="724"]]
228 228  
229 229  
230 -**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 +)))
231 231  
232 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
193 +[[image:1652953568895-172.png||height="232" width="724"]]
233 233  
195 +== 3.3 Configure Commands to read data ==
234 234  
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 +)))
235 235  
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 +)))
236 236  
237 -1.
238 -11. Configure Commands to read data
207 +=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
239 239  
240 -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:
241 241  
242 -
243 -1.
244 -11.
245 -111. Configure UART settings for RS485 or TTL communication
246 -
247 -RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
248 -
249 -1. RS485-MODBUS mode:
250 -
251 -AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
252 -
253 -
254 -1. TTL mode:
255 -
256 -AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
257 -
258 -
259 -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.
260 -
261 -
262 -|**AT Commands**|**Description**|**Example**
263 -|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 +(((
264 264  AT+BAUDR=9600
226 +)))
265 265  
228 +(((
266 266  Options: (1200,2400,4800,14400,19200,115200)
267 267  )))
268 -|AT+PARITY|(((
231 +)))
232 +|(((
233 +AT+PARITY
234 +)))|(% style="width:285px" %)(((
269 269  Set UART parity (for RS485 connection)
270 -
271 -Default Value is: no parity.
272 -)))|(((
236 +)))|(% style="width:347px" %)(((
237 +(((
273 273  AT+PARITY=0
239 +)))
274 274  
241 +(((
275 275  Option: 0: no parity, 1: odd parity, 2: even parity
276 276  )))
277 -|AT+STOPBIT|(((
244 +)))
245 +|(((
246 +AT+STOPBIT
247 +)))|(% style="width:285px" %)(((
248 +(((
278 278  Set serial stopbit (for RS485 connection)
250 +)))
279 279  
280 -Default Value is: 1bit.
281 -)))|(((
252 +(((
253 +
254 +)))
255 +)))|(% style="width:347px" %)(((
256 +(((
282 282  AT+STOPBIT=0 for 1bit
258 +)))
283 283  
260 +(((
284 284  AT+STOPBIT=1 for 1.5 bit
262 +)))
285 285  
264 +(((
286 286  AT+STOPBIT=2 for 2 bits
287 287  )))
267 +)))
288 288  
269 +=== 3.3.2 Configure sensors ===
289 289  
271 +(((
272 +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**.
273 +)))
290 290  
275 +(((
276 +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.
277 +)))
291 291  
292 -
293 -1.
294 -11.
295 -111. Configure sensors
296 -
297 -Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands AT+CFGDEV.
298 -
299 -
300 -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.
301 -
302 -|**AT Commands**|**Description**|**Example**
303 -|AT+CFGDEV|(((
279 +(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
280 +|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
281 +|AT+CFGDEV|(% style="width:418px" %)(((
304 304  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
305 305  
306 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
284 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
307 307  
308 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
309 -)))|AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
286 +mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
287 +)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
310 310  
311 311  Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
312 312  
291 +=== 3.3.3 Configure read commands for each sampling ===
313 313  
314 -
315 -
316 -
317 -1.
318 -11.
319 -111. Configure read commands for each sampling
320 -
293 +(((
321 321  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.
295 +)))
322 322  
323 -
297 +(((
324 324  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.
299 +)))
325 325  
326 -
301 +(((
327 327  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
303 +)))
328 328  
329 -
305 +(((
330 330  This section describes how to achieve above goals.
307 +)))
331 331  
332 -
309 +(((
333 333  During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
311 +)))
334 334  
335 -
313 +(((
336 336  **Command from RS485-BL to Sensor:**
315 +)))
337 337  
317 +(((
338 338  RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
319 +)))
339 339  
340 -
321 +(((
341 341  **Handle return from sensors to RS485-BL**:
323 +)))
342 342  
325 +(((
343 343  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**
327 +)))
344 344  
329 +* (((
330 +**AT+DATACUT**
331 +)))
345 345  
346 -* **AT+DATACUT**
347 -
333 +(((
348 348  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.
335 +)))
349 349  
337 +* (((
338 +**AT+SEARCH**
339 +)))
350 350  
351 -* **AT+SEARCH**
352 -
341 +(((
353 353  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.
343 +)))
354 354  
355 -
345 +(((
356 356  **Define wait timeout:**
347 +)))
357 357  
349 +(((
358 358  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
351 +)))
359 359  
360 -
353 +(((
361 361  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
355 +)))
362 362  
363 -
364 364  **Examples:**
365 365  
366 366  Below are examples for the how above AT Commands works.
367 367  
368 -
369 369  **AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
370 370  
363 +(% border="1" class="table-bordered" %)
371 371  |(((
372 372  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
373 373  
... ... @@ -380,9 +380,9 @@
380 380  
381 381  In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
382 382  
383 -
384 384  **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
385 385  
378 +(% border="1" class="table-bordered" %)
386 386  |(((
387 387  **AT+SEARCHx=aa,xx xx xx xx xx**
388 388  
... ... @@ -400,7 +400,7 @@
400 400  
401 401  The valid data will be all bytes after 1E 56 34 , so it is 2e 30 58 5f 36 41 30 31 00 49
402 402  
403 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
396 +[[image:1652954654347-831.png]]
404 404  
405 405  
406 406  1. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
... ... @@ -419,7 +419,7 @@
419 419  
420 420  * **a: length for the return of AT+COMMAND**
421 421  * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
422 -* **c: define the position for valid value. **
415 +* **c: define the position for valid value.  **
423 423  )))
424 424  
425 425  Examples:
... ... @@ -460,8 +460,8 @@
460 460  
461 461  
462 462  
463 -1.
464 -11.
456 +1.
457 +11.
465 465  111. Compose the uplink payload
466 466  
467 467  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.**
... ... @@ -525,8 +525,8 @@
525 525  
526 526  
527 527  
528 -1.
529 -11.
521 +1.
522 +11.
530 530  111. Uplink on demand
531 531  
532 532  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.
... ... @@ -539,8 +539,8 @@
539 539  
540 540  
541 541  
542 -1.
543 -11.
535 +1.
536 +11.
544 544  111. Uplink on Interrupt
545 545  
546 546  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -554,10 +554,9 @@
554 554  AT+INTMOD=3  Interrupt trigger by rising edge.
555 555  
556 556  
557 -1.
550 +1.
558 558  11. Uplink Payload
559 559  
560 -
561 561  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
562 562  |Value|(((
563 563  Battery(mV)
... ... @@ -606,7 +606,7 @@
606 606  
607 607  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
608 608  
609 -1.
601 +1.
610 610  11. Configure RS485-BL via AT or Downlink
611 611  
612 612  User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
... ... @@ -617,20 +617,17 @@
617 617  
618 618  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
619 619  
620 -
621 -1.
622 -11.
612 +1.
613 +11.
623 623  111. Common Commands:
624 624  
625 -
626 626  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]]
627 627  
628 628  
629 -1.
630 -11.
619 +1.
620 +11.
631 631  111. Sensor related commands:
632 632  
633 -
634 634  ==== Choose Device Type (RS485 or TTL) ====
635 635  
636 636  RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
... ... @@ -671,7 +671,6 @@
671 671  * XX XX XX XX: RS485 command total NN bytes
672 672  * 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
673 673  
674 -
675 675  **Example 1:**
676 676  
677 677  To connect a Modbus Alarm with below commands.
... ... @@ -780,7 +780,6 @@
780 780  
781 781  * AT+MBFUN=0: Disable Modbus fast reading.
782 782  
783 -
784 784  Example:
785 785  
786 786  * AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
... ... @@ -865,7 +865,7 @@
865 865  
866 866  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
867 867  
868 -Example screen shot after clear all RS485 commands.
855 +Example screen shot after clear all RS485 commands. 
869 869  
870 870  
871 871  
... ... @@ -909,7 +909,6 @@
909 909  * A7 01 00 60   same as AT+BAUDR=9600
910 910  * A7 01 04 80  same as AT+BAUDR=115200
911 911  
912 -
913 913  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
914 914  
915 915  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
... ... @@ -937,20 +937,18 @@
937 937  
938 938  
939 939  
940 -1.
926 +1.
941 941  11. Buttons
942 942  
943 -
944 944  |**Button**|**Feature**
945 945  |**RST**|Reboot RS485-BL
946 946  
947 -
948 -1.
932 +1.
949 949  11. +3V3 Output
950 950  
951 951  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
952 952  
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.
937 +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. 
954 954  
955 955  
956 956  The +3V3 output time can be controlled by AT Command.
... ... @@ -963,12 +963,12 @@
963 963  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
964 964  
965 965  
966 -1.
950 +1.
967 967  11. +5V Output
968 968  
969 969  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
970 970  
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.
955 +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. 
972 972  
973 973  
974 974  The 5V output time can be controlled by AT Command.
... ... @@ -983,14 +983,13 @@
983 983  
984 984  
985 985  
986 -1.
970 +1.
987 987  11. LEDs
988 988  
989 989  |**LEDs**|**Feature**
990 990  |**LED1**|Blink when device transmit a packet.
991 991  
992 -
993 -1.
976 +1.
994 994  11. Switch Jumper
995 995  
996 996  |**Switch Jumper**|**Feature**
... ... @@ -1011,7 +1011,6 @@
1011 1011  
1012 1012  1. Case Study
1013 1013  
1014 -
1015 1015  User can check this URL for some case studies.
1016 1016  
1017 1017  [[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]]
... ... @@ -1037,7 +1037,7 @@
1037 1037  
1038 1038  
1039 1039  
1040 -1.
1022 +1.
1041 1041  11. Common AT Command Sequence
1042 1042  111. Multi-channel ABP mode (Use with SX1301/LG308)
1043 1043  
... ... @@ -1056,8 +1056,8 @@
1056 1056  
1057 1057  ATZ
1058 1058  
1059 -1.
1060 -11.
1041 +1.
1042 +11.
1061 1061  111. Single-channel ABP mode (Use with LG01/LG02)
1062 1062  
1063 1063  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1099,7 +1099,6 @@
1099 1099  * For bug fix
1100 1100  * Change LoRaWAN bands.
1101 1101  
1102 -
1103 1103  Below shows the hardware connection for how to upload an image to RS485-BL:
1104 1104  
1105 1105  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
... ... @@ -1133,7 +1133,7 @@
1133 1133  [[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]]
1134 1134  
1135 1135  
1136 -1.
1117 +1.
1137 1137  11. How to change the LoRa Frequency Bands/Region?
1138 1138  
1139 1139  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1140,10 +1140,9 @@
1140 1140  
1141 1141  
1142 1142  
1143 -1.
1124 +1.
1144 1144  11. How many RS485-Slave can RS485-BL connects?
1145 1145  
1146 -
1147 1147  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]].
1148 1148  
1149 1149  
... ... @@ -1154,11 +1154,11 @@
1154 1154  
1155 1155  Please see this link for debug:
1156 1156  
1157 -[[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]]
1137 +[[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]] 
1158 1158  
1159 1159  
1160 1160  
1161 -1.
1141 +1.
1162 1162  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1163 1163  
1164 1164  It might about the channels mapping. Please see for detail.
... ... @@ -1169,7 +1169,6 @@
1169 1169  
1170 1170  1. Order Info
1171 1171  
1172 -
1173 1173  **Part Number: RS485-BL-XXX**
1174 1174  
1175 1175  **XXX:**
... ... @@ -1185,7 +1185,6 @@
1185 1185  * **RU864**: frequency bands RU864
1186 1186  * **KZ865: **frequency bands KZ865
1187 1187  
1188 -
1189 1189  1. Packing Info
1190 1190  
1191 1191  **Package Includes**:
... ... @@ -1194,7 +1194,6 @@
1194 1194  * Stick Antenna for LoRa RF part x 1
1195 1195  * Program cable x 1
1196 1196  
1197 -
1198 1198  **Dimension and weight**:
1199 1199  
1200 1200  * Device Size: 13.5 x 7 x 3 cm
... ... @@ -1202,7 +1202,6 @@
1202 1202  * Package Size / pcs : 14.5 x 8 x 5 cm
1203 1203  * Weight / pcs : 170g
1204 1204  
1205 -
1206 1206  1. Support
1207 1207  
1208 1208  * 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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