Last modified by Xiaoling on 2025/04/23 15:56
<
From version < 15.5 >
edited by Xiaoling
on 2022/05/19 17:52
To version < 4.2 >
edited by Xiaoling
on 2022/05/19 17:41
>
Change comment: There is no comment for this version

Summary

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Content
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1 1  (% style="text-align:center" %)
2 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 6  
... ... @@ -26,7 +26,7 @@
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.
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.
30 30  )))
31 31  
32 32  (((
... ... @@ -49,7 +49,7 @@
49 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 50  )))
51 51  
52 -[[image:1652953304999-717.png||height="424" width="733"]]
53 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]]
53 53  
54 54  == 1.2 Specifications ==
55 55  
... ... @@ -56,11 +56,11 @@
56 56  **Hardware System:**
57 57  
58 58  * STM32L072CZT6 MCU
59 -* SX1276/78 Wireless Chip 
60 +* SX1276/78 Wireless Chip
60 60  * Power Consumption (exclude RS485 device):
61 61  ** Idle: 6uA@3.3v
62 62  
63 -*
64 +*
64 64  ** 20dB Transmit: 130mA@3.3v
65 65  
66 66  **Interface for Model:**
... ... @@ -110,7 +110,7 @@
110 110  * Smart Cities
111 111  * Smart Factory
112 112  
113 -== 1.5 Firmware Change log ==
114 +== 1.5 Firmware Change log ==
114 114  
115 115  [[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);"]]
116 116  
... ... @@ -144,170 +144,152 @@
144 144  
145 145  = 2. Pin mapping and Power ON Device =
146 146  
147 -(((
148 148  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.
149 -)))
150 150  
151 151  [[image:1652953055962-143.png||height="387" width="728"]]
152 152  
152 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]]
153 153  
154 154  The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
155 155  
156 -= 3. Operation Mode =
157 157  
158 -== 3.1 How it works? ==
159 159  
160 -(((
158 +3. Operation Mode
159 +3.1 How it works?
160 +
161 161  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.
162 -)))
163 163  
164 -== 3.2 Example to join LoRaWAN network ==
165 165  
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. 
164 +1.
165 +11. Example to join LoRaWAN network
167 167  
168 -[[image:1652953414711-647.png||height="337" width="723"]]
167 +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.
169 169  
170 -(((
169 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
170 +
171 +
171 171  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 -)))
173 173  
174 -(((
174 +
175 175  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:
176 -)))
177 177  
178 -(((
179 179  **Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-BL.
180 -)))
181 181  
182 -(((
183 183  Each RS485-BL is shipped with a sticker with unique device EUI:
184 -)))
185 185  
186 -[[image:1652953462722-299.png]]
181 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png]]
187 187  
188 -(((
183 +
184 +
185 +
189 189  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
190 -)))
191 191  
192 -(((
193 193  Add APP EUI in the application.
194 -)))
195 195  
190 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.png]]
196 196  
192 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image007.png]]
197 197  
194 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.png]]
198 198  
199 -[[image:image-20220519174512-1.png]]
196 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image009.png]]
200 200  
201 -[[image:image-20220519174512-2.png||height="328" width="731"]]
202 202  
203 -[[image:image-20220519174512-3.png||height="556" width="724"]]
204 204  
205 -[[image:image-20220519174512-4.png]]
206 206  
201 +
202 +
203 +
204 +
205 +
206 +
207 +
208 +
209 +
210 +
211 +
212 +
213 +
207 207  You can also choose to create the device manually.
208 208  
209 -[[image:1652953542269-423.png||height="710" width="723"]]
216 +|(((
217 +
218 +)))
210 210  
220 +
221 +
222 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
223 +
211 211  Add APP KEY and DEV EUI
212 212  
213 -[[image:1652953553383-907.png||height="514" width="724"]]
226 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
214 214  
215 215  
216 -(((
217 217  **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.
218 -)))
219 219  
220 -[[image:1652953568895-172.png||height="232" width="724"]]
231 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
221 221  
222 -== 3.3 Configure Commands to read data ==
223 223  
224 -(((
234 +
235 +
236 +1.
237 +11. Configure Commands to read data
238 +
225 225  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.
226 -)))
227 227  
228 -=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
229 229  
242 +1.
243 +11.
244 +111. Configure UART settings for RS485 or TTL communication
245 +
230 230  RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
231 231  
232 -**~1. RS485-MODBUS mode:**
248 +1. RS485-MODBUS mode:
233 233  
234 234  AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
235 235  
236 -**2. TTL mode:**
237 237  
253 +1. TTL mode:
254 +
238 238  AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
239 239  
257 +
240 240  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.
241 241  
242 -(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
243 -|(((
244 -**AT Commands**
245 -)))|(% style="width:285px" %)(((
246 -**Description**
247 -)))|(% style="width:347px" %)(((
248 -**Example**
249 -)))
250 -|(((
251 -AT+BAUDR
252 -)))|(% style="width:285px" %)(((
253 -Set the baud rate (for RS485 connection). Default Value is: 9600.
254 -)))|(% style="width:347px" %)(((
255 -(((
260 +
261 +|**AT Commands**|**Description**|**Example**
262 +|AT+BAUDR|Set the baud rate (for RS485 connection). Default Value is: 9600.|(((
256 256  AT+BAUDR=9600
257 -)))
258 258  
259 -(((
260 260  Options: (1200,2400,4800,14400,19200,115200)
261 261  )))
262 -)))
263 -|(((
264 -AT+PARITY
265 -)))|(% style="width:285px" %)(((
266 -(((
267 +|AT+PARITY|(((
267 267  Set UART parity (for RS485 connection)
268 -)))
269 269  
270 -(((
271 271  Default Value is: no parity.
272 -)))
273 -)))|(% style="width:347px" %)(((
274 -(((
271 +)))|(((
275 275  AT+PARITY=0
276 -)))
277 277  
278 -(((
279 279  Option: 0: no parity, 1: odd parity, 2: even parity
280 280  )))
281 -)))
282 -|(((
283 -AT+STOPBIT
284 -)))|(% style="width:285px" %)(((
285 -(((
276 +|AT+STOPBIT|(((
286 286  Set serial stopbit (for RS485 connection)
287 -)))
288 288  
289 -(((
290 290  Default Value is: 1bit.
291 -)))
292 -)))|(% style="width:347px" %)(((
293 -(((
280 +)))|(((
294 294  AT+STOPBIT=0 for 1bit
295 -)))
296 296  
297 -(((
298 298  AT+STOPBIT=1 for 1.5 bit
299 -)))
300 300  
301 -(((
302 302  AT+STOPBIT=2 for 2 bits
303 303  )))
304 -)))
305 305  
306 306  
307 307  
308 308  
309 -1.
310 -11.
291 +
292 +1.
293 +11.
311 311  111. Configure sensors
312 312  
313 313  Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands AT+CFGDEV.
... ... @@ -330,8 +330,8 @@
330 330  
331 331  
332 332  
333 -1.
334 -11.
316 +1.
317 +11.
335 335  111. Configure read commands for each sampling
336 336  
337 337  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.
... ... @@ -435,7 +435,7 @@
435 435  
436 436  * **a: length for the return of AT+COMMAND**
437 437  * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
438 -* **c: define the position for valid value.  **
421 +* **c: define the position for valid value. **
439 439  )))
440 440  
441 441  Examples:
... ... @@ -476,8 +476,8 @@
476 476  
477 477  
478 478  
479 -1.
480 -11.
462 +1.
463 +11.
481 481  111. Compose the uplink payload
482 482  
483 483  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.**
... ... @@ -541,8 +541,8 @@
541 541  
542 542  
543 543  
544 -1.
545 -11.
527 +1.
528 +11.
546 546  111. Uplink on demand
547 547  
548 548  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.
... ... @@ -555,8 +555,8 @@
555 555  
556 556  
557 557  
558 -1.
559 -11.
541 +1.
542 +11.
560 560  111. Uplink on Interrupt
561 561  
562 562  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -570,9 +570,10 @@
570 570  AT+INTMOD=3  Interrupt trigger by rising edge.
571 571  
572 572  
573 -1.
556 +1.
574 574  11. Uplink Payload
575 575  
559 +
576 576  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
577 577  |Value|(((
578 578  Battery(mV)
... ... @@ -621,7 +621,7 @@
621 621  
622 622  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
623 623  
624 -1.
608 +1.
625 625  11. Configure RS485-BL via AT or Downlink
626 626  
627 627  User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
... ... @@ -632,17 +632,20 @@
632 632  
633 633  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
634 634  
635 -1.
636 -11.
619 +
620 +1.
621 +11.
637 637  111. Common Commands:
638 638  
624 +
639 639  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]]
640 640  
641 641  
642 -1.
643 -11.
628 +1.
629 +11.
644 644  111. Sensor related commands:
645 645  
632 +
646 646  ==== Choose Device Type (RS485 or TTL) ====
647 647  
648 648  RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
... ... @@ -683,6 +683,7 @@
683 683  * XX XX XX XX: RS485 command total NN bytes
684 684  * 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
685 685  
673 +
686 686  **Example 1:**
687 687  
688 688  To connect a Modbus Alarm with below commands.
... ... @@ -791,6 +791,7 @@
791 791  
792 792  * AT+MBFUN=0: Disable Modbus fast reading.
793 793  
782 +
794 794  Example:
795 795  
796 796  * AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
... ... @@ -875,7 +875,7 @@
875 875  
876 876  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
877 877  
878 -Example screen shot after clear all RS485 commands. 
867 +Example screen shot after clear all RS485 commands.
879 879  
880 880  
881 881  
... ... @@ -919,6 +919,7 @@
919 919  * A7 01 00 60   same as AT+BAUDR=9600
920 920  * A7 01 04 80  same as AT+BAUDR=115200
921 921  
911 +
922 922  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
923 923  
924 924  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
... ... @@ -946,18 +946,20 @@
946 946  
947 947  
948 948  
949 -1.
939 +1.
950 950  11. Buttons
951 951  
942 +
952 952  |**Button**|**Feature**
953 953  |**RST**|Reboot RS485-BL
954 954  
955 -1.
946 +
947 +1.
956 956  11. +3V3 Output
957 957  
958 958  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
959 959  
960 -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. 
952 +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.
961 961  
962 962  
963 963  The +3V3 output time can be controlled by AT Command.
... ... @@ -970,12 +970,12 @@
970 970  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
971 971  
972 972  
973 -1.
965 +1.
974 974  11. +5V Output
975 975  
976 976  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
977 977  
978 -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. 
970 +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.
979 979  
980 980  
981 981  The 5V output time can be controlled by AT Command.
... ... @@ -990,13 +990,14 @@
990 990  
991 991  
992 992  
993 -1.
985 +1.
994 994  11. LEDs
995 995  
996 996  |**LEDs**|**Feature**
997 997  |**LED1**|Blink when device transmit a packet.
998 998  
999 -1.
991 +
992 +1.
1000 1000  11. Switch Jumper
1001 1001  
1002 1002  |**Switch Jumper**|**Feature**
... ... @@ -1017,6 +1017,7 @@
1017 1017  
1018 1018  1. Case Study
1019 1019  
1013 +
1020 1020  User can check this URL for some case studies.
1021 1021  
1022 1022  [[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]]
... ... @@ -1042,7 +1042,7 @@
1042 1042  
1043 1043  
1044 1044  
1045 -1.
1039 +1.
1046 1046  11. Common AT Command Sequence
1047 1047  111. Multi-channel ABP mode (Use with SX1301/LG308)
1048 1048  
... ... @@ -1061,8 +1061,8 @@
1061 1061  
1062 1062  ATZ
1063 1063  
1064 -1.
1065 -11.
1058 +1.
1059 +11.
1066 1066  111. Single-channel ABP mode (Use with LG01/LG02)
1067 1067  
1068 1068  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1104,6 +1104,7 @@
1104 1104  * For bug fix
1105 1105  * Change LoRaWAN bands.
1106 1106  
1101 +
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.
1135 +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.
... ... @@ -1144,9 +1144,10 @@
1144 1144  
1145 1145  
1146 1146  
1147 -1.
1142 +1.
1148 1148  11. How many RS485-Slave can RS485-BL connects?
1149 1149  
1145 +
1150 1150  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]].
1151 1151  
1152 1152  
... ... @@ -1157,11 +1157,11 @@
1157 1157  
1158 1158  Please see this link for debug:
1159 1159  
1160 -[[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]] 
1156 +[[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 1161  
1162 1162  
1163 1163  
1164 -1.
1160 +1.
1165 1165  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1166 1166  
1167 1167  It might about the channels mapping. Please see for detail.
... ... @@ -1172,6 +1172,7 @@
1172 1172  
1173 1173  1. Order Info
1174 1174  
1171 +
1175 1175  **Part Number: RS485-BL-XXX**
1176 1176  
1177 1177  **XXX:**
... ... @@ -1187,6 +1187,7 @@
1187 1187  * **RU864**: frequency bands RU864
1188 1188  * **KZ865: **frequency bands KZ865
1189 1189  
1187 +
1190 1190  1. Packing Info
1191 1191  
1192 1192  **Package Includes**:
... ... @@ -1195,6 +1195,7 @@
1195 1195  * Stick Antenna for LoRa RF part x 1
1196 1196  * Program cable x 1
1197 1197  
1196 +
1198 1198  **Dimension and weight**:
1199 1199  
1200 1200  * Device Size: 13.5 x 7 x 3 cm
... ... @@ -1202,6 +1202,7 @@
1202 1202  * Package Size / pcs : 14.5 x 8 x 5 cm
1203 1203  * Weight / pcs : 170g
1204 1204  
1204 +
1205 1205  1. Support
1206 1206  
1207 1207  * 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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