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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... ... @@ -58,6 +58,7 @@ 58 58 * IP66 Waterproof Enclosure 59 59 * 4000mAh or 8500mAh Battery for long term use 60 60 61 + 61 61 == 1.3 Specification == 62 62 63 63 Measure Volume: Base on the centra pin of the probe, a cylinder with 7cm diameter and 10cm height. ... ... @@ -89,7 +89,7 @@ 89 89 ))) 90 90 91 91 ((( 92 -In case you can’t set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3. UsingtheATCommands"]].93 +In case you can’t set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.200BUsingtheATCommands"]]. 93 93 ))) 94 94 95 95 ... ... @@ -630,6 +630,8 @@ 630 630 * Solid ON for 5 seconds once device successful Join the network. 631 631 * Blink once when device transmit a packet. 632 632 634 + 635 + 633 633 == 2.9 Installation in Soil == 634 634 635 635 **Measurement the soil surface** ... ... @@ -877,20 +877,38 @@ 877 877 878 878 == 4.1 How to change the LoRa Frequency Bands/Region? == 879 879 883 +((( 880 880 You can follow the instructions for [[how to upgrade image>>||anchor="H2.10200BFirmwareChangeLog"]]. 881 881 When downloading the images, choose the required image file for download. 886 +))) 882 882 888 +((( 889 + 890 +))) 883 883 892 +((( 884 884 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. 894 +))) 885 885 896 +((( 897 + 898 +))) 886 886 900 +((( 887 887 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. 902 +))) 888 888 904 +((( 905 + 906 +))) 889 889 908 +((( 890 890 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. 910 +))) 891 891 892 892 [[image:image-20220606154726-3.png]] 893 893 914 + 894 894 When you use the TTN network, the US915 frequency bands use are: 895 895 896 896 * 903.9 - SF7BW125 to SF10BW125 ... ... @@ -903,7 +903,9 @@ 903 903 * 905.3 - SF7BW125 to SF10BW125 904 904 * 904.6 - SF8BW500 905 905 927 +((( 906 906 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: 929 +))) 907 907 908 908 (% class="box infomessage" %) 909 909 ((( ... ... @@ -915,10 +915,17 @@ 915 915 **ATZ** 916 916 ))) 917 917 941 +((( 918 918 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. 943 +))) 919 919 945 +((( 946 + 947 +))) 920 920 949 +((( 921 921 The **AU915** band is similar. Below are the AU915 Uplink Channels. 951 +))) 922 922 923 923 [[image:image-20220606154825-4.png]] 924 924