Last modified by Xiaoling on 2025/04/23 15:56
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From version < 18.2 >
edited by Xiaoling
on 2022/05/23 08:49
To version < 3.2 >
edited by Xiaoling
on 2022/05/19 17:30
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Title
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1 -RS485-LN – RS485 to LoRaWAN Converter
1 +RS485-BL – Waterproof RS485 to LoRaWAN Converter
Content
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1 1  (% style="text-align:center" %)
2 -[[image:1653266934636-343.png||height="385" width="385"]]
2 +[[image:1652947681187-144.png||height="385" width="385"]]
3 3  
4 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.jpg]]
4 4  
5 5  
6 -**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 +**RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
8 8  
10 +
9 9  **Table of Contents:**
10 10  
11 11  
... ... @@ -25,7 +25,7 @@
25 25  )))
26 26  
27 27  (((
28 -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.
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.
29 29  )))
30 30  
31 31  (((
... ... @@ -48,7 +48,7 @@
48 48  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.
49 49  )))
50 50  
51 -[[image:1652953304999-717.png||height="424" width="733"]]
53 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]]
52 52  
53 53  == 1.2 Specifications ==
54 54  
... ... @@ -55,7 +55,7 @@
55 55  **Hardware System:**
56 56  
57 57  * STM32L072CZT6 MCU
58 -* SX1276/78 Wireless Chip 
60 +* SX1276/78 Wireless Chip
59 59  * Power Consumption (exclude RS485 device):
60 60  ** Idle: 6uA@3.3v
61 61  
... ... @@ -62,6 +62,7 @@
62 62  *
63 63  ** 20dB Transmit: 130mA@3.3v
64 64  
67 +
65 65  **Interface for Model:**
66 66  
67 67  * 1 x RS485 Interface
... ... @@ -71,6 +71,7 @@
71 71  * 1 x Interrupt Interface
72 72  * 1 x Controllable 5V output, max
73 73  
77 +
74 74  **LoRa Spec:**
75 75  
76 76  * Frequency Range:
... ... @@ -87,10 +87,11 @@
87 87  * Built-in bit synchronizer for clock recovery.
88 88  * Preamble detection.
89 89  * 127 dB Dynamic Range RSSI.
90 -* Automatic RF Sense and CAD with ultra-fast AFC. ​​​
94 +* Automatic RF Sense and CAD with ultra-fast AFC.
91 91  
92 -== 1.3 Features ==
93 93  
97 +*
98 +*1. Features
94 94  * LoRaWAN Class A & Class C protocol (default Class A)
95 95  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
96 96  * AT Commands to change parameters
... ... @@ -100,8 +100,9 @@
100 100  * Support Modbus protocol
101 101  * Support Interrupt uplink
102 102  
103 -== 1.4 Applications ==
104 104  
109 +*
110 +*1. Applications
105 105  * Smart Buildings & Home Automation
106 106  * Logistics and Supply Chain Management
107 107  * Smart Metering
... ... @@ -109,294 +109,263 @@
109 109  * Smart Cities
110 110  * Smart Factory
111 111  
112 -== 1.5 Firmware Change log ==
113 113  
114 -[[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);"]]
119 +1.
120 +11. Firmware Change log
115 115  
116 -== 1.6 Hardware Change log ==
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/]]
117 117  
118 -(((
124 +
125 +1.
126 +11. Hardware Change log
127 +
128 +
119 119  v1.4
120 -)))
121 121  
122 -(((
123 123  ~1. Change Power IC to TPS22916
124 -)))
125 125  
126 126  
127 -(((
128 128  v1.3
129 -)))
130 130  
131 -(((
132 132  ~1. Change JP3 from KF350-8P to KF350-11P, Add one extra interface for I2C and one extra interface for one-wire
133 -)))
134 134  
135 135  
136 -(((
137 137  v1.2
138 -)))
139 139  
140 -(((
141 -Release version ​​​​​
142 -)))
141 +Release version
143 143  
144 -= 2. Pin mapping and Power ON Device =
145 145  
146 -(((
144 +
145 +
146 +
147 +1. Pin mapping and Power ON Device
148 +
147 147  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.
148 -)))
149 149  
150 -[[image:1652953055962-143.png||height="387" width="728"]]
151 151  
152 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]]
152 152  
154 +
155 +
153 153  The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
154 154  
155 -= 3. Operation Mode =
156 156  
157 -== 3.1 How it works? ==
158 158  
159 -(((
160 +
161 +
162 +
163 +1. Operation Mode
164 +11. How it works?
165 +
160 160  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.
161 -)))
162 162  
163 -== 3.2 Example to join LoRaWAN network ==
164 164  
165 -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 +1.
170 +11. Example to join LoRaWAN network
166 166  
167 -[[image:1652953414711-647.png||height="337" width="723"]]
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.
168 168  
169 -(((
174 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
175 +
176 +
170 170  The RS485-BL in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method.
171 -)))
172 172  
173 -(((
179 +
174 174  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:
175 -)))
176 176  
177 -(((
178 178  **Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-BL.
179 -)))
180 180  
181 -(((
182 182  Each RS485-BL is shipped with a sticker with unique device EUI:
183 -)))
184 184  
185 -[[image:1652953462722-299.png]]
186 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png]]
186 186  
187 -(((
188 +
189 +
190 +
188 188  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
189 -)))
190 190  
191 -(((
192 192  Add APP EUI in the application.
193 -)))
194 194  
195 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.png]]
195 195  
197 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]]
196 196  
199 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.png]]
197 197  
198 -[[image:image-20220519174512-1.png]]
201 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image009.png]]
199 199  
200 -[[image:image-20220519174512-2.png||height="328" width="731"]]
201 201  
202 -[[image:image-20220519174512-3.png||height="556" width="724"]]
203 203  
204 -[[image:image-20220519174512-4.png]]
205 205  
206 +
207 +
208 +
209 +
210 +
211 +
212 +
213 +
214 +
215 +
216 +
217 +
218 +
206 206  You can also choose to create the device manually.
207 207  
208 -[[image:1652953542269-423.png||height="710" width="723"]]
221 +|(((
222 +
223 +)))
209 209  
225 +
226 +
227 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
228 +
210 210  Add APP KEY and DEV EUI
211 211  
212 -[[image:1652953553383-907.png||height="514" width="724"]]
231 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
213 213  
214 214  
215 -(((
216 216  **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.
217 -)))
218 218  
219 -[[image:1652953568895-172.png||height="232" width="724"]]
236 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
220 220  
221 -== 3.3 Configure Commands to read data ==
222 222  
223 -(((
239 +
240 +
241 +1.
242 +11. Configure Commands to read data
243 +
224 224  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.
225 -)))
226 226  
227 -=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
228 228  
247 +1.
248 +11.
249 +111. Configure UART settings for RS485 or TTL communication
250 +
229 229  RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
230 230  
231 -**~1. RS485-MODBUS mode:**
253 +1. RS485-MODBUS mode:
232 232  
233 233  AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
234 234  
235 -**2. TTL mode:**
236 236  
258 +1. TTL mode:
259 +
237 237  AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
238 238  
262 +
239 239  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.
240 240  
241 -(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
242 -|(((
243 -**AT Commands**
244 -)))|(% style="width:285px" %)(((
245 -**Description**
246 -)))|(% style="width:347px" %)(((
247 -**Example**
248 -)))
249 -|(((
250 -AT+BAUDR
251 -)))|(% style="width:285px" %)(((
252 -Set the baud rate (for RS485 connection). Default Value is: 9600.
253 -)))|(% style="width:347px" %)(((
254 -(((
265 +
266 +|**AT Commands**|**Description**|**Example**
267 +|AT+BAUDR|Set the baud rate (for RS485 connection). Default Value is: 9600.|(((
255 255  AT+BAUDR=9600
256 -)))
257 257  
258 -(((
259 259  Options: (1200,2400,4800,14400,19200,115200)
260 260  )))
261 -)))
262 -|(((
263 -AT+PARITY
264 -)))|(% style="width:285px" %)(((
265 -(((
272 +|AT+PARITY|(((
266 266  Set UART parity (for RS485 connection)
267 -)))
268 268  
269 -(((
270 270  Default Value is: no parity.
271 -)))
272 -)))|(% style="width:347px" %)(((
273 -(((
276 +)))|(((
274 274  AT+PARITY=0
275 -)))
276 276  
277 -(((
278 278  Option: 0: no parity, 1: odd parity, 2: even parity
279 279  )))
280 -)))
281 -|(((
282 -AT+STOPBIT
283 -)))|(% style="width:285px" %)(((
284 -(((
281 +|AT+STOPBIT|(((
285 285  Set serial stopbit (for RS485 connection)
286 -)))
287 287  
288 -(((
289 289  Default Value is: 1bit.
290 -)))
291 -)))|(% style="width:347px" %)(((
292 -(((
285 +)))|(((
293 293  AT+STOPBIT=0 for 1bit
294 -)))
295 295  
296 -(((
297 297  AT+STOPBIT=1 for 1.5 bit
298 -)))
299 299  
300 -(((
301 301  AT+STOPBIT=2 for 2 bits
302 302  )))
303 -)))
304 304  
305 -=== 3.3.2 Configure sensors ===
306 306  
307 -(((
308 -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**.
309 -)))
310 310  
311 -(((
312 -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.
313 -)))
314 314  
315 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
316 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
317 -|AT+CFGDEV|(% style="width:418px" %)(((
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|(((
318 318  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
319 319  
320 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
310 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
321 321  
322 -mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
323 -)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
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
324 324  
325 325  Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
326 326  
327 -=== 3.3.3 Configure read commands for each sampling ===
328 328  
329 -(((
318 +
319 +
320 +
321 +1.
322 +11.
323 +111. Configure read commands for each sampling
324 +
330 330  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.
331 -)))
332 332  
333 -(((
327 +
334 334  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.
335 -)))
336 336  
337 -(((
330 +
338 338  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
339 -)))
340 340  
341 -(((
333 +
342 342  This section describes how to achieve above goals.
343 -)))
344 344  
345 -(((
336 +
346 346  During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
347 -)))
348 348  
349 -(((
339 +
350 350  **Command from RS485-BL to Sensor:**
351 -)))
352 352  
353 -(((
354 354  RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
355 -)))
356 356  
357 -(((
344 +
358 358  **Handle return from sensors to RS485-BL**:
359 -)))
360 360  
361 -(((
362 362  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**
363 -)))
364 364  
365 -* (((
366 -**AT+DATACUT**
367 -)))
368 368  
369 -(((
350 +* **AT+DATACUT**
351 +
370 370  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.
371 -)))
372 372  
373 -* (((
374 -**AT+SEARCH**
375 -)))
376 376  
377 -(((
355 +* **AT+SEARCH**
356 +
378 378  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.
379 -)))
380 380  
381 -(((
359 +
382 382  **Define wait timeout:**
383 -)))
384 384  
385 -(((
386 386  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
387 -)))
388 388  
389 -(((
364 +
390 390  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
391 -)))
392 392  
367 +
393 393  **Examples:**
394 394  
395 395  Below are examples for the how above AT Commands works.
396 396  
372 +
397 397  **AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
398 398  
399 -(% border="1" class="table-bordered" %)
400 400  |(((
401 401  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
402 402  
... ... @@ -409,9 +409,9 @@
409 409  
410 410  In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
411 411  
387 +
412 412  **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
413 413  
414 -(% border="1" class="table-bordered" %)
415 415  |(((
416 416  **AT+SEARCHx=aa,xx xx xx xx xx**
417 417  
... ... @@ -429,7 +429,7 @@
429 429  
430 430  The valid data will be all bytes after 1E 56 34 , so it is 2e 30 58 5f 36 41 30 31 00 49
431 431  
432 -[[image:1652954654347-831.png]]
407 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
433 433  
434 434  
435 435  1. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
... ... @@ -448,7 +448,7 @@
448 448  
449 449  * **a: length for the return of AT+COMMAND**
450 450  * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
451 -* **c: define the position for valid value.  **
426 +* **c: define the position for valid value. **
452 452  )))
453 453  
454 454  Examples:
... ... @@ -489,7 +489,7 @@
489 489  
490 490  
491 491  
492 -1.
467 +1.
493 493  11.
494 494  111. Compose the uplink payload
495 495  
... ... @@ -586,6 +586,7 @@
586 586  1.
587 587  11. Uplink Payload
588 588  
564 +
589 589  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
590 590  |Value|(((
591 591  Battery(mV)
... ... @@ -634,7 +634,7 @@
634 634  
635 635  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
636 636  
637 -1.
613 +1.
638 638  11. Configure RS485-BL via AT or Downlink
639 639  
640 640  User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
... ... @@ -645,10 +645,12 @@
645 645  
646 646  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
647 647  
624 +
648 648  1.
649 649  11.
650 650  111. Common Commands:
651 651  
629 +
652 652  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]]
653 653  
654 654  
... ... @@ -656,6 +656,7 @@
656 656  11.
657 657  111. Sensor related commands:
658 658  
637 +
659 659  ==== Choose Device Type (RS485 or TTL) ====
660 660  
661 661  RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
... ... @@ -696,6 +696,7 @@
696 696  * XX XX XX XX: RS485 command total NN bytes
697 697  * 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
698 698  
678 +
699 699  **Example 1:**
700 700  
701 701  To connect a Modbus Alarm with below commands.
... ... @@ -804,6 +804,7 @@
804 804  
805 805  * AT+MBFUN=0: Disable Modbus fast reading.
806 806  
787 +
807 807  Example:
808 808  
809 809  * AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
... ... @@ -888,7 +888,7 @@
888 888  
889 889  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
890 890  
891 -Example screen shot after clear all RS485 commands. 
872 +Example screen shot after clear all RS485 commands.
892 892  
893 893  
894 894  
... ... @@ -932,6 +932,7 @@
932 932  * A7 01 00 60   same as AT+BAUDR=9600
933 933  * A7 01 04 80  same as AT+BAUDR=115200
934 934  
916 +
935 935  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
936 936  
937 937  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
... ... @@ -962,15 +962,17 @@
962 962  1.
963 963  11. Buttons
964 964  
947 +
965 965  |**Button**|**Feature**
966 966  |**RST**|Reboot RS485-BL
967 967  
951 +
968 968  1.
969 969  11. +3V3 Output
970 970  
971 971  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
972 972  
973 -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. 
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.
974 974  
975 975  
976 976  The +3V3 output time can be controlled by AT Command.
... ... @@ -988,7 +988,7 @@
988 988  
989 989  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
990 990  
991 -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. 
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.
992 992  
993 993  
994 994  The 5V output time can be controlled by AT Command.
... ... @@ -1009,6 +1009,7 @@
1009 1009  |**LEDs**|**Feature**
1010 1010  |**LED1**|Blink when device transmit a packet.
1011 1011  
996 +
1012 1012  1.
1013 1013  11. Switch Jumper
1014 1014  
... ... @@ -1030,6 +1030,7 @@
1030 1030  
1031 1031  1. Case Study
1032 1032  
1018 +
1033 1033  User can check this URL for some case studies.
1034 1034  
1035 1035  [[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]]
... ... @@ -1117,6 +1117,7 @@
1117 1117  * For bug fix
1118 1118  * Change LoRaWAN bands.
1119 1119  
1106 +
1120 1120  Below shows the hardware connection for how to upload an image to RS485-BL:
1121 1121  
1122 1122  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
... ... @@ -1160,6 +1160,7 @@
1160 1160  1.
1161 1161  11. How many RS485-Slave can RS485-BL connects?
1162 1162  
1150 +
1163 1163  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]].
1164 1164  
1165 1165  
... ... @@ -1170,7 +1170,7 @@
1170 1170  
1171 1171  Please see this link for debug:
1172 1172  
1173 -[[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]] 
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]]
1174 1174  
1175 1175  
1176 1176  
... ... @@ -1185,6 +1185,7 @@
1185 1185  
1186 1186  1. Order Info
1187 1187  
1176 +
1188 1188  **Part Number: RS485-BL-XXX**
1189 1189  
1190 1190  **XXX:**
... ... @@ -1200,6 +1200,7 @@
1200 1200  * **RU864**: frequency bands RU864
1201 1201  * **KZ865: **frequency bands KZ865
1202 1202  
1192 +
1203 1203  1. Packing Info
1204 1204  
1205 1205  **Package Includes**:
... ... @@ -1208,6 +1208,7 @@
1208 1208  * Stick Antenna for LoRa RF part x 1
1209 1209  * Program cable x 1
1210 1210  
1201 +
1211 1211  **Dimension and weight**:
1212 1212  
1213 1213  * Device Size: 13.5 x 7 x 3 cm
... ... @@ -1215,6 +1215,7 @@
1215 1215  * Package Size / pcs : 14.5 x 8 x 5 cm
1216 1216  * Weight / pcs : 170g
1217 1217  
1209 +
1218 1218  1. Support
1219 1219  
1220 1220  * 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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