Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 22.3 >
edited by Xiaoling
on 2022/05/23 09:12
To version < 22.7 >
edited by Xiaoling
on 2022/05/23 09:20
>
Change comment: There is no comment for this version

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Content
... ... @@ -41,17 +41,17 @@
41 41  **Hardware System:**
42 42  
43 43  * STM32L072CZT6 MCU
44 -* SX1276/78 Wireless Chip
44 +* SX1276/78 Wireless Chip 
45 45  * Power Consumption (exclude RS485 device):
46 46  ** Idle: 32mA@12v
47 47  
48 -*
48 +*
49 49  ** 20dB Transmit: 65mA@12v
50 50  
51 51  **Interface for Model:**
52 52  
53 53  * RS485
54 -* Power Input 7~~ 24V DC.
54 +* Power Input 7~~ 24V DC. 
55 55  
56 56  **LoRa Spec:**
57 57  
... ... @@ -187,7 +187,7 @@
187 187  
188 188  
189 189  (((
190 -**Step 2**: Power on RS485-BL and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
190 +**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
191 191  )))
192 192  
193 193  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -195,23 +195,19 @@
195 195  == 3.3 Configure Commands to read data ==
196 196  
197 197  (((
198 -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.
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.
199 199  )))
200 200  
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 +)))
206 +
201 201  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
202 202  
203 -RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
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:
204 204  
205 -**~1. RS485-MODBUS mode:**
206 -
207 -AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
208 -
209 -**2. TTL mode:**
210 -
211 -AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
212 -
213 -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.
214 -
215 215  (% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
216 216  |(((
217 217  **AT Commands**
... ... @@ -236,13 +236,7 @@
236 236  |(((
237 237  AT+PARITY
238 238  )))|(% style="width:285px" %)(((
239 -(((
240 240  Set UART parity (for RS485 connection)
241 -)))
242 -
243 -(((
244 -Default Value is: no parity.
245 -)))
246 246  )))|(% style="width:347px" %)(((
247 247  (((
248 248  AT+PARITY=0
... ... @@ -260,7 +260,7 @@
260 260  )))
261 261  
262 262  (((
263 -Default Value is: 1bit.
253 +
264 264  )))
265 265  )))|(% style="width:347px" %)(((
266 266  (((
... ... @@ -279,12 +279,10 @@
279 279  === 3.3.2 Configure sensors ===
280 280  
281 281  (((
282 -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**.
283 -)))
284 -
285 285  (((
286 -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.
273 +Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
287 287  )))
275 +)))
288 288  
289 289  (% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
290 290  |**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
... ... @@ -464,7 +464,7 @@
464 464  
465 465  
466 466  1.
467 -11.
455 +11.
468 468  111. Compose the uplink payload
469 469  
470 470  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.**
... ... @@ -528,8 +528,8 @@
528 528  
529 529  
530 530  
531 -1.
532 -11.
519 +1.
520 +11.
533 533  111. Uplink on demand
534 534  
535 535  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.
... ... @@ -542,8 +542,8 @@
542 542  
543 543  
544 544  
545 -1.
546 -11.
533 +1.
534 +11.
547 547  111. Uplink on Interrupt
548 548  
549 549  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -557,7 +557,7 @@
557 557  AT+INTMOD=3  Interrupt trigger by rising edge.
558 558  
559 559  
560 -1.
548 +1.
561 561  11. Uplink Payload
562 562  
563 563  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
... ... @@ -619,15 +619,15 @@
619 619  
620 620  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
621 621  
622 -1.
623 -11.
610 +1.
611 +11.
624 624  111. Common Commands:
625 625  
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.
617 +1.
618 +11.
631 631  111. Sensor related commands:
632 632  
633 633  ==== Choose Device Type (RS485 or TTL) ====
... ... @@ -933,13 +933,13 @@
933 933  
934 934  
935 935  
936 -1.
924 +1.
937 937  11. Buttons
938 938  
939 939  |**Button**|**Feature**
940 940  |**RST**|Reboot RS485-BL
941 941  
942 -1.
930 +1.
943 943  11. +3V3 Output
944 944  
945 945  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -957,7 +957,7 @@
957 957  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
958 958  
959 959  
960 -1.
948 +1.
961 961  11. +5V Output
962 962  
963 963  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -977,13 +977,13 @@
977 977  
978 978  
979 979  
980 -1.
968 +1.
981 981  11. LEDs
982 982  
983 983  |**LEDs**|**Feature**
984 984  |**LED1**|Blink when device transmit a packet.
985 985  
986 -1.
974 +1.
987 987  11. Switch Jumper
988 988  
989 989  |**Switch Jumper**|**Feature**
... ... @@ -1029,7 +1029,7 @@
1029 1029  
1030 1030  
1031 1031  
1032 -1.
1020 +1.
1033 1033  11. Common AT Command Sequence
1034 1034  111. Multi-channel ABP mode (Use with SX1301/LG308)
1035 1035  
... ... @@ -1048,8 +1048,8 @@
1048 1048  
1049 1049  ATZ
1050 1050  
1051 -1.
1052 -11.
1039 +1.
1040 +11.
1053 1053  111. Single-channel ABP mode (Use with LG01/LG02)
1054 1054  
1055 1055  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1124,7 +1124,7 @@
1124 1124  [[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]]
1125 1125  
1126 1126  
1127 -1.
1115 +1.
1128 1128  11. How to change the LoRa Frequency Bands/Region?
1129 1129  
1130 1130  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1131,7 +1131,7 @@
1131 1131  
1132 1132  
1133 1133  
1134 -1.
1122 +1.
1135 1135  11. How many RS485-Slave can RS485-BL connects?
1136 1136  
1137 1137  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]].
... ... @@ -1148,7 +1148,7 @@
1148 1148  
1149 1149  
1150 1150  
1151 -1.
1139 +1.
1152 1152  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1153 1153  
1154 1154  It might about the channels mapping. Please see for detail.

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