Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 19.3 >
edited by Xiaoling
on 2022/05/23 08:55
To version < 23.1 >
edited by Xiaoling
on 2022/05/23 09:30
>
Change comment: Uploaded new attachment "1653269403619-508.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  
... ... @@ -76,14 +76,14 @@
76 76  
77 77  == 1.3 Features ==
78 78  
79 -* LoRaWAN Class A & Class C protocol (default Class A)
79 +* LoRaWAN Class A & Class C protocol (default Class C)
80 80  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
81 81  * AT Commands to change parameters
82 -* Remote configure parameters via LoRaWAN Downlink
82 +* Remote configure parameters via LoRa Downlink
83 83  * Firmware upgradable via program port
84 84  * Support multiply RS485 devices by flexible rules
85 85  * Support Modbus protocol
86 -* Support Interrupt uplink
86 +* Support Interrupt uplink (Since hardware version v1.2)
87 87  
88 88  == 1.4 Applications ==
89 89  
... ... @@ -96,53 +96,39 @@
96 96  
97 97  == 1.5 Firmware Change log ==
98 98  
99 -[[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);"]]
99 +[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
100 100  
101 101  == 1.6 Hardware Change log ==
102 102  
103 103  (((
104 -v1.4
105 -)))
106 -
107 107  (((
108 -~1. Change Power IC to TPS22916
109 -)))
105 +v1.2: Add External Interrupt Pin.
110 110  
111 -
112 -(((
113 -v1.3
107 +v1.0: Release
114 114  )))
115 -
116 -(((
117 -~1. Change JP3 from KF350-8P to KF350-11P, Add one extra interface for I2C and one extra interface for one-wire
118 118  )))
119 119  
111 += 2. Power ON Device =
120 120  
121 121  (((
122 -v1.2
123 -)))
114 +The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
124 124  
116 +* Power Source VIN to RS485-LN VIN+
117 +* Power Source GND to RS485-LN VIN-
118 +
125 125  (((
126 -Release version ​​​​​
120 +Once there is power, the RS485-LN will be on.
127 127  )))
128 128  
129 -= 2. Pin mapping and Power ON Device =
130 -
131 -(((
132 -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.
123 +[[image:1653268091319-405.png]]
133 133  )))
134 134  
135 -[[image:1652953055962-143.png||height="387" width="728"]]
136 -
137 -
138 -The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
139 -
140 140  = 3. Operation Mode =
141 141  
142 142  == 3.1 How it works? ==
143 143  
144 144  (((
145 -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.
146 146  )))
147 147  
148 148  == 3.2 Example to join LoRaWAN network ==
... ... @@ -149,27 +149,32 @@
149 149  
150 150  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. 
151 151  
152 -[[image:1652953414711-647.png||height="337" width="723"]]
138 +[[image:1653268155545-638.png||height="334" width="724"]]
153 153  
154 154  (((
155 -The RS485-BL in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method.
156 -)))
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:
157 157  
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 +
158 158  (((
159 -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:
160 160  )))
161 161  
162 162  (((
163 -**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.
164 164  )))
165 165  
166 166  (((
167 -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:
168 168  )))
158 +)))
169 169  
170 170  [[image:1652953462722-299.png]]
171 171  
172 172  (((
163 +(((
173 173  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
174 174  )))
175 175  
... ... @@ -176,13 +176,11 @@
176 176  (((
177 177  Add APP EUI in the application.
178 178  )))
170 +)))
179 179  
180 -
181 -
182 -
183 183  [[image:image-20220519174512-1.png]]
184 184  
185 -[[image:image-20220519174512-2.png||height="328" width="731"]]
174 +[[image:image-20220519174512-2.png||height="323" width="720"]]
186 186  
187 187  [[image:image-20220519174512-3.png||height="556" width="724"]]
188 188  
... ... @@ -198,7 +198,7 @@
198 198  
199 199  
200 200  (((
201 -**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.
202 202  )))
203 203  
204 204  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -206,23 +206,19 @@
206 206  == 3.3 Configure Commands to read data ==
207 207  
208 208  (((
209 -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.
210 210  )))
211 211  
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 +
212 212  === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
213 213  
214 -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:
215 215  
216 -**~1. RS485-MODBUS mode:**
217 -
218 -AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
219 -
220 -**2. TTL mode:**
221 -
222 -AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
223 -
224 -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.
225 -
226 226  (% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
227 227  |(((
228 228  **AT Commands**
... ... @@ -247,13 +247,7 @@
247 247  |(((
248 248  AT+PARITY
249 249  )))|(% style="width:285px" %)(((
250 -(((
251 251  Set UART parity (for RS485 connection)
252 -)))
253 -
254 -(((
255 -Default Value is: no parity.
256 -)))
257 257  )))|(% style="width:347px" %)(((
258 258  (((
259 259  AT+PARITY=0
... ... @@ -271,7 +271,7 @@
271 271  )))
272 272  
273 273  (((
274 -Default Value is: 1bit.
253 +
275 275  )))
276 276  )))|(% style="width:347px" %)(((
277 277  (((
... ... @@ -290,12 +290,10 @@
290 290  === 3.3.2 Configure sensors ===
291 291  
292 292  (((
293 -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**.
294 -)))
295 -
296 296  (((
297 -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.
298 298  )))
275 +)))
299 299  
300 300  (% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
301 301  |**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
... ... @@ -307,8 +307,6 @@
307 307  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
308 308  )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
309 309  
310 -Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
311 -
312 312  === 3.3.3 Configure read commands for each sampling ===
313 313  
314 314  (((
... ... @@ -475,7 +475,7 @@
475 475  
476 476  
477 477  1.
478 -11.
453 +11.
479 479  111. Compose the uplink payload
480 480  
481 481  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.**
... ... @@ -539,8 +539,8 @@
539 539  
540 540  
541 541  
542 -1.
543 -11.
517 +1.
518 +11.
544 544  111. Uplink on demand
545 545  
546 546  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.
... ... @@ -553,8 +553,8 @@
553 553  
554 554  
555 555  
556 -1.
557 -11.
531 +1.
532 +11.
558 558  111. Uplink on Interrupt
559 559  
560 560  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -568,7 +568,7 @@
568 568  AT+INTMOD=3  Interrupt trigger by rising edge.
569 569  
570 570  
571 -1.
546 +1.
572 572  11. Uplink Payload
573 573  
574 574  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
... ... @@ -630,15 +630,15 @@
630 630  
631 631  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
632 632  
633 -1.
634 -11.
608 +1.
609 +11.
635 635  111. Common Commands:
636 636  
637 637  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]]
638 638  
639 639  
640 -1.
641 -11.
615 +1.
616 +11.
642 642  111. Sensor related commands:
643 643  
644 644  ==== Choose Device Type (RS485 or TTL) ====
... ... @@ -944,13 +944,13 @@
944 944  
945 945  
946 946  
947 -1.
922 +1.
948 948  11. Buttons
949 949  
950 950  |**Button**|**Feature**
951 951  |**RST**|Reboot RS485-BL
952 952  
953 -1.
928 +1.
954 954  11. +3V3 Output
955 955  
956 956  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -968,7 +968,7 @@
968 968  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
969 969  
970 970  
971 -1.
946 +1.
972 972  11. +5V Output
973 973  
974 974  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -988,13 +988,13 @@
988 988  
989 989  
990 990  
991 -1.
966 +1.
992 992  11. LEDs
993 993  
994 994  |**LEDs**|**Feature**
995 995  |**LED1**|Blink when device transmit a packet.
996 996  
997 -1.
972 +1.
998 998  11. Switch Jumper
999 999  
1000 1000  |**Switch Jumper**|**Feature**
... ... @@ -1040,7 +1040,7 @@
1040 1040  
1041 1041  
1042 1042  
1043 -1.
1018 +1.
1044 1044  11. Common AT Command Sequence
1045 1045  111. Multi-channel ABP mode (Use with SX1301/LG308)
1046 1046  
... ... @@ -1059,8 +1059,8 @@
1059 1059  
1060 1060  ATZ
1061 1061  
1062 -1.
1063 -11.
1037 +1.
1038 +11.
1064 1064  111. Single-channel ABP mode (Use with LG01/LG02)
1065 1065  
1066 1066  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1135,7 +1135,7 @@
1135 1135  [[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]]
1136 1136  
1137 1137  
1138 -1.
1113 +1.
1139 1139  11. How to change the LoRa Frequency Bands/Region?
1140 1140  
1141 1141  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1142,7 +1142,7 @@
1142 1142  
1143 1143  
1144 1144  
1145 -1.
1120 +1.
1146 1146  11. How many RS485-Slave can RS485-BL connects?
1147 1147  
1148 1148  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]].
... ... @@ -1159,7 +1159,7 @@
1159 1159  
1160 1160  
1161 1161  
1162 -1.
1137 +1.
1163 1163  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1164 1164  
1165 1165  It might about the channels mapping. Please see for detail.
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