Changes for page NDDS75 -- NB-IoT Distance Detect Sensor User Manual
Last modified by Bei Jinggeng on 2024/05/31 09:53
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... ... @@ -87,6 +87,8 @@ 87 87 **Method** 88 88 )))|**FDR , with temperature &EC compensate**|**Conductivity , with temperature compensate**|**RTD, and calibrate** 89 89 90 + 91 + 90 90 * 91 91 *1. Applications 92 92 * Smart Agriculture ... ... @@ -98,6 +98,8 @@ 98 98 99 99 * Release 100 100 103 + 104 + 101 101 1. Configure LSE01 to connect to LoRaWAN network 102 102 11. How it works 103 103 ... ... @@ -148,6 +148,8 @@ 148 148 ))) 149 149 150 150 155 + 156 + 151 151 **Step 2**: Power on LSE01 152 152 153 153 ... ... @@ -734,6 +734,7 @@ 734 734 * [[Lithium-Thionyl Chloride Battery>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/ER18505_datasheet-EN.pdf]] datasheet, [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/ER18505_datasheet_PM-ER18505-S-02-LF_EN.pdf]] 735 735 * [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]] 736 736 743 + 737 737 |((( 738 738 JST-XH-2P connector 739 739 ))) ... ... @@ -900,24 +900,39 @@ 900 900 901 901 902 902 903 -= 4. FAQ = 910 +1. FAQ 911 +11. How to change the LoRa Frequency Bands/Region? 904 904 905 -== 4.1 How to change the LoRa Frequency Bands/Region? == 906 - 907 907 You can follow the instructions for [[how to upgrade image>>path:#3ygebqi]]. 908 908 When downloading the images, choose the required image file for download. 909 909 910 910 911 -How to set up LSE01 to work in 8 channel mode By default, the frequency bands US915, AU915, CN470 work in 72 frequencies. Many gateways are 8 channel gateways, and in this case, the OTAA join time and uplink schedule is long and unpredictable while the end node is hopping in 72 frequencies. 912 912 918 +How to set up LSE01 to work in 8 channel mode 913 913 920 +By default, the frequency bands US915, AU915, CN470 work in 72 frequencies. Many gateways are 8 channel gateways, and in this case, the OTAA join time and uplink schedule is long and unpredictable while the end node is hopping in 72 frequencies. 921 + 922 + 914 914 You can configure the end node to work in 8 channel mode by using the AT+CHE command. The 500kHz channels are always included for OTAA. 915 915 916 916 926 + 917 917 For example, in **US915** band, the frequency table is as below. By default, the end node will use all channels (0~~71) for OTAA Join process. After the OTAA Join, the end node will use these all channels (0~~71) to send uplink packets. 918 918 919 -[[image:image-20220606154726-3.png]] 920 920 930 +|CHE|(% colspan="9" %)US915 Uplink Channels(125KHz,4/5,Unit:MHz,CHS=0) 931 +|0|(% colspan="9" %)ENABLE Channel 0-63 932 +|1|902.3|902.5|902.7|902.9|903.1|903.3|903.5|903.7|Channel 0-7 933 +|2|903.9|904.1|904.3|904.5|904.7|904.9|905.1|905.3|Channel 8-15 934 +|3|905.5|905.7|905.9|906.1|906.3|906.5|906.7|906.9|Channel 16-23 935 +|4|907.1|907.3|907.5|907.7|907.9|908.1|908.3|908.5|Channel 24-31 936 +|5|908.7|908.9|909.1|909.3|909.5|909.7|909.9|910.1|Channel 32-39 937 +|6|910.3|910.5|910.7|910.9|911.1|911.3|911.5|911.7|Channel 40-47 938 +|7|911.9|912.1|912.3|912.5|912.7|912.9|913.1|913.3|Channel 48-55 939 +|8|913.5|913.7|913.9|914.1|914.3|914.5|914.7|914.9|Channel 56-63 940 +|(% colspan="10" %)Channels(500KHz,4/5,Unit:MHz,CHS=0) 941 +| |903|904.6|906.2|907.8|909.4|911|912.6|914.2|Channel 64-71 942 + 921 921 When you use the TTN network, the US915 frequency bands use are: 922 922 923 923 * 903.9 - SF7BW125 to SF10BW125 ... ... @@ -930,18 +930,11 @@ 930 930 * 905.3 - SF7BW125 to SF10BW125 931 931 * 904.6 - SF8BW500 932 932 933 - 934 934 Because the end node is now hopping in 72 frequency, it makes it difficult for the devices to Join the TTN network and uplink data. To solve this issue, you can access the device via the AT commands and run: 935 935 936 -(% class="box infomessage" %) 937 -((( 938 938 **AT+CHE=2** 939 -))) 940 940 941 -(% class="box infomessage" %) 942 -((( 943 943 **ATZ** 944 -))) 945 945 946 946 to set the end node to work in 8 channel mode. The device will work in Channel 8-15 & 64-71 for OTAA, and channel 8-15 for Uplink. 947 947 ... ... @@ -948,40 +948,58 @@ 948 948 949 949 The **AU915** band is similar. Below are the AU915 Uplink Channels. 950 950 951 -[[image:image-20220606154825-4.png]] 952 952 967 +|CHE|(% colspan="9" %)AU915 Uplink Channels(125KHz,4/5,Unit:MHz,CHS=0) 968 +|0|(% colspan="9" %)ENABLE Channel 0-63 969 +|1|915.2|915.4|915.6|915.8|916|916.2|916.4|916.6|Channel 0-7 970 +|2|916.8|917|917.2|917.4|917.6|917.8|918|918.2|Channel 8-15 971 +|3|918.4|918.6|918.8|919|919.2|919.4|919.6|919.8|Channel 16-23 972 +|4|920|920.2|920.4|920.6|920.8|921|921.2|921.4|Channel 24-31 973 +|5|921.6|921.8|922|922.2|922.4|922.6|922.8|923|Channel 32-39 974 +|6|923.2|923.4|923.6|923.8|924|924.2|924.4|924.6|Channel 40-47 975 +|7|924.8|925|925.2|925.4|925.6|925.8|926|926.2|Channel 48-55 976 +|8|926.4|926.6|926.8|927|927.2|927.4|927.6|927.8|Channel 56-63 977 +|(% colspan="10" %)Channels(500KHz,4/5,Unit:MHz,CHS=0) 978 +| |915.9|917.5|919.1|920.7|922.3|923.9|925.5|927.1|Channel 64-71 953 953 954 954 981 + 982 + 983 + 955 955 = 5. Trouble Shooting = 956 956 986 +1. Why I can’t join TTN in US915 / AU915 bands? 957 957 958 - ==5.1WhyIcan’tjoinTTNinUS915/AU915bands?==988 +It is due to channel mapping. Please see the [[Eight Channel Mode>>path:#206ipza]] section above for details. 959 959 960 -It is due to channel mapping. Please see the [[Eight Channel Mode>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] section above for details. 961 961 962 962 963 -== 5.2 AT Command input doesn’t work == 992 +1. 993 +11. AT Command input doesn’t work 964 964 965 -In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%)while sending out the command. Some serial tool doesn’t send(% style="color:green" %)**ENTER**(%%)while press the send key, user need to add ENTER in their string.995 +In the case if user can see the console output but can’t type input to the device. Please check if you already include the **ENTER** while sending out the command. Some serial tool doesn’t send **ENTER** while press the send key, user need to add ENTER in their string. 966 966 967 967 968 -== 5.3 Device rejoin in at the second uplink packet == 969 969 970 -(% style="color:#4f81bd" %)**Issue describe as below:** 971 971 972 -[[image:1654500909990-784.png]] 1000 +1. 1001 +11. Device rejoin in at the second uplink packet. 973 973 1003 +**Issue describe as below:** 974 974 975 - (% style="color:#4f81bd" %)**Causeforsissue:**1005 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] 976 976 1007 + 1008 +**Cause for this issue:** 1009 + 977 977 The fuse on LSE01 is not large enough, some of the soil probe require large current up to 5v 800mA, in a short pulse. When this happen, it cause the device reboot so user see rejoin. 978 978 979 979 980 - (% style="color:#4f81bd" %)**Solution: **1013 +**Solution: ** 981 981 982 982 All new shipped LSE01 after 2020-May-30 will have this to fix. For the customer who see this issue, please bypass the fuse as below: 983 983 984 -[[image: 1654500929571-736.png]]1017 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] 985 985 986 986 987 987 = 6. Order Info = ... ... @@ -1006,6 +1006,7 @@ 1006 1006 * (% style="color:red" %)**4**(%%): 4000mAh battery 1007 1007 * (% style="color:red" %)**8**(%%): 8500mAh battery 1008 1008 1042 + 1009 1009 = 7. Packing Info = 1010 1010 1011 1011 (((
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