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Last modified by Xiaoling on 2025/04/23 15:57
From version 29.40
edited by Xiaoling
on 2022/06/02 09:10
Change comment: There is no comment for this version
To version 30.4
edited by Xiaoling
on 2022/06/02 09:23
Change comment: There is no comment for this version

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... ... @@ -752,37 +752,47 @@
752 752  
753 753  === 3.5.2 Sensor related commands: ===
754 754  
755 -==== Choose Device Type (RS485 or TTL) ====
755 +==== ====
756 756  
757 +==== **Choose Device Type (RS485 or TTL)** ====
758 +
757 757  RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
758 758  
759 -* AT Command
761 +* **AT Command**
760 760  
763 +(% class="box infomessage" %)
764 +(((
761 761  **AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
766 +)))
762 762  
768 +(% class="box infomessage" %)
769 +(((
763 763  **AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
771 +)))
764 764  
765 765  
766 -* Downlink Payload
774 +* **Downlink Payload**
767 767  
768 -**0A aa**     à same as AT+MOD=aa
776 +**0A aa**  ~-~->  same as AT+MOD=aa
769 769  
770 770  
771 771  
772 -==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
780 +==== **RS485 Debug Command (AT+CFGDEV)** ====
773 773  
774 774  This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
775 775  
776 -* AT Command
784 +* **AT Command**
777 777  
778 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
786 +(% class="box infomessage" %)
787 +(((
788 +**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
789 +)))
779 779  
780 780  m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
781 781  
782 782  
794 +* **Downlink Payload**
783 783  
784 -* Downlink Payload
785 -
786 786  Format: A8 MM NN XX XX XX XX YY
787 787  
788 788  Where:
... ... @@ -792,19 +792,20 @@
792 792  * XX XX XX XX: RS485 command total NN bytes
793 793  * YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
794 794  
805 +
795 795  **Example 1:**
796 796  
797 797  To connect a Modbus Alarm with below commands.
798 798  
799 -* The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
810 +* The command to active alarm is: 0A 05 00 04 00 01 **4C B0**. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
800 800  
801 -* The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
812 +* The command to deactivate alarm is: 0A 05 00 04 00 00 **8D 70**. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
802 802  
803 803  So if user want to use downlink command to control to RS485 Alarm, he can use:
804 804  
805 -**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
816 +(% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
806 806  
807 -**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
818 +(% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
808 808  
809 809  A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
810 810  
... ... @@ -813,29 +813,32 @@
813 813  
814 814  Check TTL Sensor return:
815 815  
816 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
827 +[[image:1654132684752-193.png]]
817 817  
818 818  
819 819  
831 +==== **Set Payload version** ====
820 820  
821 -==== Set Payload version ====
822 -
823 823  This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
824 824  
825 -* AT Command:
835 +* **AT Command:**
826 826  
827 -AT+PAYVER: Set PAYVER field = 1
837 +(% class="box infomessage" %)
838 +(((
839 +**AT+PAYVER: Set PAYVER field = 1**
840 +)))
828 828  
829 829  
830 -* Downlink Payload:
843 +* **Downlink Payload:**
831 831  
832 -0xAE 01   à Set PAYVER field =  0x01
845 +**0xAE 01**  ~-~-> Set PAYVER field =  0x01
833 833  
834 -0xAE 0F   à Set PAYVER field =  0x0F
847 +**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
835 835  
836 836  
837 -==== Set RS485 Sampling Commands ====
838 838  
851 +==== **Set RS485 Sampling Commands** ====
852 +
839 839  AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
840 840  
841 841  These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
... ... @@ -1055,13 +1055,13 @@
1055 1055  
1056 1056  
1057 1057  
1058 -1.
1072 +1.
1059 1059  11. Buttons
1060 1060  
1061 1061  |**Button**|**Feature**
1062 1062  |**RST**|Reboot RS485-BL
1063 1063  
1064 -1.
1078 +1.
1065 1065  11. +3V3 Output
1066 1066  
1067 1067  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -1079,7 +1079,7 @@
1079 1079  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1080 1080  
1081 1081  
1082 -1.
1096 +1.
1083 1083  11. +5V Output
1084 1084  
1085 1085  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -1099,13 +1099,13 @@
1099 1099  
1100 1100  
1101 1101  
1102 -1.
1116 +1.
1103 1103  11. LEDs
1104 1104  
1105 1105  |**LEDs**|**Feature**
1106 1106  |**LED1**|Blink when device transmit a packet.
1107 1107  
1108 -1.
1122 +1.
1109 1109  11. Switch Jumper
1110 1110  
1111 1111  |**Switch Jumper**|**Feature**
... ... @@ -1151,7 +1151,7 @@
1151 1151  
1152 1152  
1153 1153  
1154 -1.
1168 +1.
1155 1155  11. Common AT Command Sequence
1156 1156  111. Multi-channel ABP mode (Use with SX1301/LG308)
1157 1157  
... ... @@ -1170,8 +1170,8 @@
1170 1170  
1171 1171  ATZ
1172 1172  
1173 -1.
1174 -11.
1187 +1.
1188 +11.
1175 1175  111. Single-channel ABP mode (Use with LG01/LG02)
1176 1176  
1177 1177  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1246,7 +1246,7 @@
1246 1246  [[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]]
1247 1247  
1248 1248  
1249 -1.
1263 +1.
1250 1250  11. How to change the LoRa Frequency Bands/Region?
1251 1251  
1252 1252  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1253,7 +1253,7 @@
1253 1253  
1254 1254  
1255 1255  
1256 -1.
1270 +1.
1257 1257  11. How many RS485-Slave can RS485-BL connects?
1258 1258  
1259 1259  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]].
... ... @@ -1270,7 +1270,7 @@
1270 1270  
1271 1271  
1272 1272  
1273 -1.
1287 +1.
1274 1274  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1275 1275  
1276 1276  It might about the channels mapping. Please see for detail.
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