Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 22.2 >
edited by Xiaoling
on 2022/05/23 09:11
To version < 27.1 >
edited by Xiaoling
on 2022/05/23 09:33
>
Change comment: Uploaded new attachment "1653269593172-426.png", version {1}

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... ... @@ -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  
... ... @@ -160,6 +160,7 @@
160 160  [[image:1652953462722-299.png]]
161 161  
162 162  (((
163 +(((
163 163  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
164 164  )))
165 165  
... ... @@ -166,13 +166,11 @@
166 166  (((
167 167  Add APP EUI in the application.
168 168  )))
170 +)))
169 169  
170 -
171 -
172 -
173 173  [[image:image-20220519174512-1.png]]
174 174  
175 -[[image:image-20220519174512-2.png||height="328" width="731"]]
174 +[[image:image-20220519174512-2.png||height="323" width="720"]]
176 176  
177 177  [[image:image-20220519174512-3.png||height="556" width="724"]]
178 178  
... ... @@ -188,7 +188,7 @@
188 188  
189 189  
190 190  (((
191 -**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.
192 192  )))
193 193  
194 194  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -196,23 +196,19 @@
196 196  == 3.3 Configure Commands to read data ==
197 197  
198 198  (((
199 -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.
200 200  )))
201 201  
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 +
202 202  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
203 203  
204 -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:
205 205  
206 -**~1. RS485-MODBUS mode:**
207 -
208 -AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
209 -
210 -**2. TTL mode:**
211 -
212 -AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
213 -
214 -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.
215 -
216 216  (% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
217 217  |(((
218 218  **AT Commands**
... ... @@ -237,13 +237,7 @@
237 237  |(((
238 238  AT+PARITY
239 239  )))|(% style="width:285px" %)(((
240 -(((
241 241  Set UART parity (for RS485 connection)
242 -)))
243 -
244 -(((
245 -Default Value is: no parity.
246 -)))
247 247  )))|(% style="width:347px" %)(((
248 248  (((
249 249  AT+PARITY=0
... ... @@ -261,7 +261,7 @@
261 261  )))
262 262  
263 263  (((
264 -Default Value is: 1bit.
253 +
265 265  )))
266 266  )))|(% style="width:347px" %)(((
267 267  (((
... ... @@ -280,12 +280,10 @@
280 280  === 3.3.2 Configure sensors ===
281 281  
282 282  (((
283 -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**.
284 -)))
285 -
286 286  (((
287 -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.
288 288  )))
275 +)))
289 289  
290 290  (% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
291 291  |**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
... ... @@ -297,8 +297,6 @@
297 297  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
298 298  )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
299 299  
300 -Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
301 -
302 302  === 3.3.3 Configure read commands for each sampling ===
303 303  
304 304  (((
... ... @@ -465,7 +465,7 @@
465 465  
466 466  
467 467  1.
468 -11.
453 +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.
517 +1.
518 +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.
531 +1.
532 +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]]
... ... @@ -558,7 +558,7 @@
558 558  AT+INTMOD=3  Interrupt trigger by rising edge.
559 559  
560 560  
561 -1.
546 +1.
562 562  11. Uplink Payload
563 563  
564 564  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
... ... @@ -620,15 +620,15 @@
620 620  
621 621  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
622 622  
623 -1.
624 -11.
608 +1.
609 +11.
625 625  111. Common Commands:
626 626  
627 627  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]]
628 628  
629 629  
630 -1.
631 -11.
615 +1.
616 +11.
632 632  111. Sensor related commands:
633 633  
634 634  ==== Choose Device Type (RS485 or TTL) ====
... ... @@ -934,13 +934,13 @@
934 934  
935 935  
936 936  
937 -1.
922 +1.
938 938  11. Buttons
939 939  
940 940  |**Button**|**Feature**
941 941  |**RST**|Reboot RS485-BL
942 942  
943 -1.
928 +1.
944 944  11. +3V3 Output
945 945  
946 946  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -958,7 +958,7 @@
958 958  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
959 959  
960 960  
961 -1.
946 +1.
962 962  11. +5V Output
963 963  
964 964  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -978,13 +978,13 @@
978 978  
979 979  
980 980  
981 -1.
966 +1.
982 982  11. LEDs
983 983  
984 984  |**LEDs**|**Feature**
985 985  |**LED1**|Blink when device transmit a packet.
986 986  
987 -1.
972 +1.
988 988  11. Switch Jumper
989 989  
990 990  |**Switch Jumper**|**Feature**
... ... @@ -1030,7 +1030,7 @@
1030 1030  
1031 1031  
1032 1032  
1033 -1.
1018 +1.
1034 1034  11. Common AT Command Sequence
1035 1035  111. Multi-channel ABP mode (Use with SX1301/LG308)
1036 1036  
... ... @@ -1049,8 +1049,8 @@
1049 1049  
1050 1050  ATZ
1051 1051  
1052 -1.
1053 -11.
1037 +1.
1038 +11.
1054 1054  111. Single-channel ABP mode (Use with LG01/LG02)
1055 1055  
1056 1056  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1125,7 +1125,7 @@
1125 1125  [[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]]
1126 1126  
1127 1127  
1128 -1.
1113 +1.
1129 1129  11. How to change the LoRa Frequency Bands/Region?
1130 1130  
1131 1131  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1132,7 +1132,7 @@
1132 1132  
1133 1133  
1134 1134  
1135 -1.
1120 +1.
1136 1136  11. How many RS485-Slave can RS485-BL connects?
1137 1137  
1138 1138  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]].
... ... @@ -1149,7 +1149,7 @@
1149 1149  
1150 1150  
1151 1151  
1152 -1.
1137 +1.
1153 1153  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1154 1154  
1155 1155  It might about the channels mapping. Please see for detail.
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