Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 26.1 >
edited by Xiaoling
on 2022/05/23 09:32
To version < 22.3 >
edited by Xiaoling
on 2022/05/23 09:12
>
Change comment: There is no comment for this version

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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  
... ... @@ -187,7 +187,7 @@
187 187  
188 188  
189 189  (((
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.
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.
191 191  )))
192 192  
193 193  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -195,19 +195,23 @@
195 195  == 3.3 Configure Commands to read data ==
196 196  
197 197  (((
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.
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.
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 -
207 207  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
208 208  
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:
203 +RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
210 210  
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 +
211 211  (% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
212 212  |(((
213 213  **AT Commands**
... ... @@ -232,7 +232,13 @@
232 232  |(((
233 233  AT+PARITY
234 234  )))|(% style="width:285px" %)(((
239 +(((
235 235  Set UART parity (for RS485 connection)
241 +)))
242 +
243 +(((
244 +Default Value is: no parity.
245 +)))
236 236  )))|(% style="width:347px" %)(((
237 237  (((
238 238  AT+PARITY=0
... ... @@ -250,7 +250,7 @@
250 250  )))
251 251  
252 252  (((
253 -
263 +Default Value is: 1bit.
254 254  )))
255 255  )))|(% style="width:347px" %)(((
256 256  (((
... ... @@ -269,10 +269,12 @@
269 269  === 3.3.2 Configure sensors ===
270 270  
271 271  (((
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 +
272 272  (((
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.
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.
274 274  )))
275 -)))
276 276  
277 277  (% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
278 278  |**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
... ... @@ -284,6 +284,8 @@
284 284  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
285 285  )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
286 286  
299 +Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
300 +
287 287  === 3.3.3 Configure read commands for each sampling ===
288 288  
289 289  (((
... ... @@ -450,7 +450,7 @@
450 450  
451 451  
452 452  1.
453 -11.
467 +11.
454 454  111. Compose the uplink payload
455 455  
456 456  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.**
... ... @@ -514,8 +514,8 @@
514 514  
515 515  
516 516  
517 -1.
518 -11.
531 +1.
532 +11.
519 519  111. Uplink on demand
520 520  
521 521  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.
... ... @@ -528,8 +528,8 @@
528 528  
529 529  
530 530  
531 -1.
532 -11.
545 +1.
546 +11.
533 533  111. Uplink on Interrupt
534 534  
535 535  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -543,7 +543,7 @@
543 543  AT+INTMOD=3  Interrupt trigger by rising edge.
544 544  
545 545  
546 -1.
560 +1.
547 547  11. Uplink Payload
548 548  
549 549  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
... ... @@ -605,15 +605,15 @@
605 605  
606 606  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
607 607  
608 -1.
609 -11.
622 +1.
623 +11.
610 610  111. Common Commands:
611 611  
612 612  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]]
613 613  
614 614  
615 -1.
616 -11.
629 +1.
630 +11.
617 617  111. Sensor related commands:
618 618  
619 619  ==== Choose Device Type (RS485 or TTL) ====
... ... @@ -919,13 +919,13 @@
919 919  
920 920  
921 921  
922 -1.
936 +1.
923 923  11. Buttons
924 924  
925 925  |**Button**|**Feature**
926 926  |**RST**|Reboot RS485-BL
927 927  
928 -1.
942 +1.
929 929  11. +3V3 Output
930 930  
931 931  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -943,7 +943,7 @@
943 943  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
944 944  
945 945  
946 -1.
960 +1.
947 947  11. +5V Output
948 948  
949 949  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -963,13 +963,13 @@
963 963  
964 964  
965 965  
966 -1.
980 +1.
967 967  11. LEDs
968 968  
969 969  |**LEDs**|**Feature**
970 970  |**LED1**|Blink when device transmit a packet.
971 971  
972 -1.
986 +1.
973 973  11. Switch Jumper
974 974  
975 975  |**Switch Jumper**|**Feature**
... ... @@ -1015,7 +1015,7 @@
1015 1015  
1016 1016  
1017 1017  
1018 -1.
1032 +1.
1019 1019  11. Common AT Command Sequence
1020 1020  111. Multi-channel ABP mode (Use with SX1301/LG308)
1021 1021  
... ... @@ -1034,8 +1034,8 @@
1034 1034  
1035 1035  ATZ
1036 1036  
1037 -1.
1038 -11.
1051 +1.
1052 +11.
1039 1039  111. Single-channel ABP mode (Use with LG01/LG02)
1040 1040  
1041 1041  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1110,7 +1110,7 @@
1110 1110  [[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]]
1111 1111  
1112 1112  
1113 -1.
1127 +1.
1114 1114  11. How to change the LoRa Frequency Bands/Region?
1115 1115  
1116 1116  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1117,7 +1117,7 @@
1117 1117  
1118 1118  
1119 1119  
1120 -1.
1134 +1.
1121 1121  11. How many RS485-Slave can RS485-BL connects?
1122 1122  
1123 1123  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]].
... ... @@ -1134,7 +1134,7 @@
1134 1134  
1135 1135  
1136 1136  
1137 -1.
1151 +1.
1138 1138  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1139 1139  
1140 1140  It might about the channels mapping. Please see for detail.
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