Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 19.4 >
edited by Xiaoling
on 2022/05/23 09:05
To version < 25.1 >
edited by Xiaoling
on 2022/05/23 09:32
>
Change comment: Uploaded new attachment "1653269551753-223.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  
... ... @@ -108,16 +108,20 @@
108 108  )))
109 109  )))
110 110  
111 -= 2. Pin mapping and Power ON Device =
111 += 2. Power ON Device =
112 112  
113 113  (((
114 -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.
115 -)))
114 +The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
116 116  
117 -[[image:1652953055962-143.png||height="387" width="728"]]
116 +* Power Source VIN to RS485-LN VIN+
117 +* Power Source GND to RS485-LN VIN-
118 118  
119 +(((
120 +Once there is power, the RS485-LN will be on.
121 +)))
119 119  
120 -The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
123 +[[image:1653268091319-405.png]]
124 +)))
121 121  
122 122  = 3. Operation Mode =
123 123  
... ... @@ -124,7 +124,7 @@
124 124  == 3.1 How it works? ==
125 125  
126 126  (((
127 -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.
131 +The RS485-LN is configured as LoRaWAN OTAA Class C 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-LN. It will auto join the network via OTAA.
128 128  )))
129 129  
130 130  == 3.2 Example to join LoRaWAN network ==
... ... @@ -131,27 +131,32 @@
131 131  
132 132  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. 
133 133  
134 -[[image:1652953414711-647.png||height="337" width="723"]]
138 +[[image:1653268155545-638.png||height="334" width="724"]]
135 135  
136 136  (((
137 -The RS485-BL in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method.
138 -)))
141 +The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
139 139  
143 +485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
144 +
145 +[[image:1653268227651-549.png||height="592" width="720"]]
146 +
140 140  (((
141 -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:
148 +The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
142 142  )))
143 143  
144 144  (((
145 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-BL.
152 +**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
146 146  )))
147 147  
148 148  (((
149 -Each RS485-BL is shipped with a sticker with unique device EUI:
156 +Each RS485-LN is shipped with a sticker with unique device EUI:
150 150  )))
158 +)))
151 151  
152 152  [[image:1652953462722-299.png]]
153 153  
154 154  (((
163 +(((
155 155  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
156 156  )))
157 157  
... ... @@ -158,13 +158,11 @@
158 158  (((
159 159  Add APP EUI in the application.
160 160  )))
170 +)))
161 161  
162 -
163 -
164 -
165 165  [[image:image-20220519174512-1.png]]
166 166  
167 -[[image:image-20220519174512-2.png||height="328" width="731"]]
174 +[[image:image-20220519174512-2.png||height="323" width="720"]]
168 168  
169 169  [[image:image-20220519174512-3.png||height="556" width="724"]]
170 170  
... ... @@ -180,7 +180,7 @@
180 180  
181 181  
182 182  (((
183 -**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.
184 184  )))
185 185  
186 186  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -188,23 +188,19 @@
188 188  == 3.3 Configure Commands to read data ==
189 189  
190 190  (((
191 -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.
192 192  )))
193 193  
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 +
194 194  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
195 195  
196 -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:
197 197  
198 -**~1. RS485-MODBUS mode:**
199 -
200 -AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
201 -
202 -**2. TTL mode:**
203 -
204 -AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
205 -
206 -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.
207 -
208 208  (% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
209 209  |(((
210 210  **AT Commands**
... ... @@ -229,13 +229,7 @@
229 229  |(((
230 230  AT+PARITY
231 231  )))|(% style="width:285px" %)(((
232 -(((
233 233  Set UART parity (for RS485 connection)
234 -)))
235 -
236 -(((
237 -Default Value is: no parity.
238 -)))
239 239  )))|(% style="width:347px" %)(((
240 240  (((
241 241  AT+PARITY=0
... ... @@ -253,7 +253,7 @@
253 253  )))
254 254  
255 255  (((
256 -Default Value is: 1bit.
253 +
257 257  )))
258 258  )))|(% style="width:347px" %)(((
259 259  (((
... ... @@ -272,12 +272,10 @@
272 272  === 3.3.2 Configure sensors ===
273 273  
274 274  (((
275 -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**.
276 -)))
277 -
278 278  (((
279 -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.
280 280  )))
275 +)))
281 281  
282 282  (% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
283 283  |**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
... ... @@ -289,8 +289,6 @@
289 289  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
290 290  )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
291 291  
292 -Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
293 -
294 294  === 3.3.3 Configure read commands for each sampling ===
295 295  
296 296  (((
... ... @@ -457,7 +457,7 @@
457 457  
458 458  
459 459  1.
460 -11.
453 +11.
461 461  111. Compose the uplink payload
462 462  
463 463  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.**
... ... @@ -521,8 +521,8 @@
521 521  
522 522  
523 523  
524 -1.
525 -11.
517 +1.
518 +11.
526 526  111. Uplink on demand
527 527  
528 528  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.
... ... @@ -535,8 +535,8 @@
535 535  
536 536  
537 537  
538 -1.
539 -11.
531 +1.
532 +11.
540 540  111. Uplink on Interrupt
541 541  
542 542  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -550,7 +550,7 @@
550 550  AT+INTMOD=3  Interrupt trigger by rising edge.
551 551  
552 552  
553 -1.
546 +1.
554 554  11. Uplink Payload
555 555  
556 556  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
... ... @@ -612,15 +612,15 @@
612 612  
613 613  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
614 614  
615 -1.
616 -11.
608 +1.
609 +11.
617 617  111. Common Commands:
618 618  
619 619  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]]
620 620  
621 621  
622 -1.
623 -11.
615 +1.
616 +11.
624 624  111. Sensor related commands:
625 625  
626 626  ==== Choose Device Type (RS485 or TTL) ====
... ... @@ -926,13 +926,13 @@
926 926  
927 927  
928 928  
929 -1.
922 +1.
930 930  11. Buttons
931 931  
932 932  |**Button**|**Feature**
933 933  |**RST**|Reboot RS485-BL
934 934  
935 -1.
928 +1.
936 936  11. +3V3 Output
937 937  
938 938  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -950,7 +950,7 @@
950 950  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
951 951  
952 952  
953 -1.
946 +1.
954 954  11. +5V Output
955 955  
956 956  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -970,13 +970,13 @@
970 970  
971 971  
972 972  
973 -1.
966 +1.
974 974  11. LEDs
975 975  
976 976  |**LEDs**|**Feature**
977 977  |**LED1**|Blink when device transmit a packet.
978 978  
979 -1.
972 +1.
980 980  11. Switch Jumper
981 981  
982 982  |**Switch Jumper**|**Feature**
... ... @@ -1022,7 +1022,7 @@
1022 1022  
1023 1023  
1024 1024  
1025 -1.
1018 +1.
1026 1026  11. Common AT Command Sequence
1027 1027  111. Multi-channel ABP mode (Use with SX1301/LG308)
1028 1028  
... ... @@ -1041,8 +1041,8 @@
1041 1041  
1042 1042  ATZ
1043 1043  
1044 -1.
1045 -11.
1037 +1.
1038 +11.
1046 1046  111. Single-channel ABP mode (Use with LG01/LG02)
1047 1047  
1048 1048  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1117,7 +1117,7 @@
1117 1117  [[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]]
1118 1118  
1119 1119  
1120 -1.
1113 +1.
1121 1121  11. How to change the LoRa Frequency Bands/Region?
1122 1122  
1123 1123  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1124,7 +1124,7 @@
1124 1124  
1125 1125  
1126 1126  
1127 -1.
1120 +1.
1128 1128  11. How many RS485-Slave can RS485-BL connects?
1129 1129  
1130 1130  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]].
... ... @@ -1141,7 +1141,7 @@
1141 1141  
1142 1142  
1143 1143  
1144 -1.
1137 +1.
1145 1145  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1146 1146  
1147 1147  It might about the channels mapping. Please see for detail.
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