Changes for page LHT65N -- Manual do sensor de temperatura e umidade LoRaWAN
Last modified by Xiaoling on 2023/07/18 10:12
From version 182.1
edited by Bei Jinggeng
on 2022/06/28 15:10
on 2022/06/28 15:10
Change comment:
Uploaded new attachment "image-20220628151005-5.png", version {1}
To version 190.1
edited by Edwin Chen
on 2022/08/23 10:24
on 2022/08/23 10:24
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... ... @@ -1,1 +1,1 @@ 1 -XWiki. Bei1 +XWiki.Edwin - Content
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... ... @@ -1,5 +1,5 @@ 1 1 (% style="text-align:center" %) 2 -[[image:image-20220613162008-1.png||_mstalt="428142" height="5 79" width="379"]]2 +[[image:image-20220613162008-1.png||_mstalt="428142" height="510" width="334"]] 3 3 4 4 5 5 ... ... @@ -46,6 +46,7 @@ 46 46 47 47 == 1.2 Features == 48 48 49 + 49 49 * Wall mountable 50 50 * LoRaWAN v1.0.3 Class A protocol 51 51 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915 ... ... @@ -56,7 +56,7 @@ 56 56 * Built-in Temperature & Humidity sensor 57 57 * Optional External Sensors 58 58 * Tri-color LED to indicate working status 59 -* Datalog feature 60 +* Datalog feature (Max 3328 records) 60 60 61 61 62 62 ... ... @@ -90,6 +90,7 @@ 90 90 91 91 == 2.1 How does LHT65N work? == 92 92 94 + 93 93 ((( 94 94 LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N. 95 95 ))) ... ... @@ -99,8 +99,10 @@ 99 99 ))) 100 100 101 101 104 + 102 102 == 2.2 How to Activate LHT65N? == 103 103 107 + 104 104 ((( 105 105 The LHT65N has two working modes: 106 106 ))) ... ... @@ -125,6 +125,7 @@ 125 125 126 126 == 2.3 Example to join LoRaWAN network == 127 127 132 + 128 128 (% _msthash="315240" _msttexthash="9205482" _mstvisible="1" class="wikigeneratedid" %) 129 129 This section shows an example of how to join the TTN V3 LoRaWAN IoT server. Use with other LoRaWAN IoT servers is of a similar procedure. 130 130 ... ... @@ -140,6 +140,7 @@ 140 140 141 141 === 2.3.1 Step 1: Create Device n TTN === 142 142 148 + 143 143 ((( 144 144 Create a device in TTN V3 with the OTAA keys from LHT65N. 145 145 ))) ... ... @@ -164,9 +164,10 @@ 164 164 [[image:image-20220522232954-5.png||_mstalt="431847" _mstvisible="3"]] 165 165 166 166 167 -Note: LHT65N use same payload as LHT65. 168 168 174 +(% style="color:red" %)**Note: LHT65N use same payload as LHT65.** 169 169 176 + 170 170 [[image:image-20220522233026-6.png||_mstalt="429403" _mstvisible="3"]] 171 171 172 172 ... ... @@ -180,6 +180,7 @@ 180 180 181 181 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. === 182 182 190 + 183 183 ((( 184 184 Use ACT button to activate LHT65N and it will auto-join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and user can see in the panel. 185 185 ))) ... ... @@ -191,6 +191,7 @@ 191 191 192 192 == 2.4 Uplink Payload == 193 193 202 + 194 194 ((( 195 195 The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% _mstvisible="3" style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default. 196 196 ))) ... ... @@ -265,11 +265,13 @@ 265 265 266 266 * The First 6 bytes: has fix meanings for every LHT65N. 267 267 * The 7th byte (EXT #): defines the external sensor model. 268 -* The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won ’t be these four bytes.)277 +* The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won't be these four bytes.) 269 269 270 270 280 + 271 271 === 2.4.1 Decoder in TTN V3 === 272 272 283 + 273 273 When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading. 274 274 275 275 Below is the position to put the decoder and LHT65N decoder can be download from here: ... ... @@ -285,6 +285,7 @@ 285 285 286 286 === 2.4.2 BAT-Battery Info === 287 287 299 + 288 288 These two bytes of BAT include the battery state and the actually voltage 289 289 290 290 [[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]] ... ... @@ -299,8 +299,10 @@ 299 299 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV 300 300 301 301 314 + 302 302 === 2.4.3 Built-in Temperature === 303 303 317 + 304 304 [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]] 305 305 306 306 * Temperature: 0x0ABB/100=27.47℃ ... ... @@ -310,15 +310,19 @@ 310 310 * Temperature: (0xF5C6-65536)/100=-26.18℃ 311 311 312 312 327 + 313 313 === 2.4.4 Built-in Humidity === 314 314 330 + 315 315 [[image:image-20220522235639-4.png||_mstalt="432484" _mstvisible="3" height="138" width="722"]] 316 316 317 317 * Humidity: 0x025C/10=60.4% 318 318 319 319 336 + 320 320 === 2.4.5 Ext # === 321 321 339 + 322 322 Bytes for External Sensor: 323 323 324 324 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]] ... ... @@ -327,6 +327,7 @@ 327 327 328 328 === 2.4.6 Ext value === 329 329 348 + 330 330 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ==== 331 331 332 332 ... ... @@ -350,6 +350,7 @@ 350 350 351 351 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ==== 352 352 372 + 353 353 ((( 354 354 Timestamp mode is designed for LHT65N with E3 probe, it will send the uplink payload with Unix timestamp. With the limitation of 11 bytes (max distance of AU915/US915/AS923 band), the time stamp mode will be lack of BAT voltage field, instead, it shows the battery status. The payload is as below: 355 355 ))) ... ... @@ -463,15 +463,19 @@ 463 463 464 464 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte** 465 465 466 -[[image:image-20220523152434-16.png||_mstalt="453921" _mstvisible="3"]] 486 +(% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:520px" %) 487 +|(% style="width:60px" %)**Bits**|(% style="width:90px" %)**7**|(% style="width:100px" %)**6**|(% style="width:90px" %)**5**|(% style="width:100px" %)**4**|(% style="width:60px" %)**[3:0]** 488 +|(% style="width:96px" %)**Status&Ext**|(% style="width:124px" %)None-ACK Flag|(% style="width:146px" %)Poll Message FLAG|(% style="width:109px" %)Sync time OK|(% style="width:143px" %)Unix Time Request|(% style="width:106px" %)Ext: 0b(1001) 467 467 468 -* Poll Message Flag: 1: This message is a poll message reply, 0: means this is a normal uplink. 469 -* Sync time OK: 470 -* Unix Time Request: 1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this) 490 +* (% style="color:blue" %)**Poll Message Flag**:(%%) 1: This message is a poll message reply, 0: means this is a normal uplink. 491 +* (% style="color:blue" %)**Sync time OK**: (%%) 1: Set time ok,0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server. 492 +* (% style="color:blue" %)**Unix Time Request**:(%%) 1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this) 471 471 472 472 495 + 473 473 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ==== 474 474 498 + 475 475 In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can 476 476 477 477 be used to power the external ADC sensor; user can control the power on time for this ... ... @@ -480,10 +480,46 @@ 480 480 481 481 AT+EXT=6,timeout (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms 482 482 507 +For example: 483 483 509 +AT+EXT=6,1000 will power this sensor for 1000ms before sampling the ADC value. 484 484 511 + 512 +Or use **downlink command A2** to set the same. 513 + 514 +The measuring range of the node is only about 0.1V to 1.1V The voltage resolution is about 0.24mv. 515 + 516 +When the measured output voltage of the sensor is not within the range of 0.1V and 1.1V, the output voltage terminal of the sensor shall be divided The example in the following figure is to reduce the output voltage of the sensor by three times If it is necessary to reduce more times, calculate according to the formula in the figure and connect the corresponding resistance in series. 517 + 518 +[[image:image-20220628150112-1.png||height="241" width="285"]] 519 + 520 + 521 +When ADC_IN1 pin is connected to GND or suspended, ADC value is 0 522 + 523 +[[image:image-20220628150714-4.png]] 524 + 525 + 526 +When the voltage collected by ADC_IN1 is less than the minimum range, the minimum range will be used as the output; Similarly, when the collected voltage is greater than the maximum range, the maximum range will be used as the output. 527 + 528 +1) The minimum range is about 0.1V. Each chip has internal calibration, so this value is close to 0.1V 529 + 530 +[[image:image-20220628151005-5.png]] 531 + 532 + 533 +2) The maximum range is about 1.1V. Each chip has internal calibration, so this value is close to 1.1v 534 + 535 +[[image:image-20220628151056-6.png]] 536 + 537 + 538 +3) Within range 539 + 540 +[[image:image-20220628151143-7.png]] 541 + 542 + 543 + 485 485 == 2.5 Show data on Datacake == 486 486 546 + 487 487 ((( 488 488 Datacake IoT platform provides a human-friendly interface to show the sensor data, once we have sensor data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps: 489 489 ))) ... ... @@ -531,6 +531,7 @@ 531 531 532 532 == 2.6 Datalog Feature == 533 533 594 + 534 534 ((( 535 535 Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LHT65N will store the reading for future retrieving purposes. There are two ways for IoT servers to get datalog from LHT65N. 536 536 ))) ... ... @@ -539,12 +539,17 @@ 539 539 540 540 === 2.6.1 Ways to get datalog via LoRaWAN === 541 541 603 + 542 542 There are two methods: 543 543 544 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range. 545 -1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover. 606 +1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specifying time range. 607 +1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will mark these records with non-ack message and store the sensor data, and it will send all messages (10s interval) after the network recovery. note: a) LHT65N will do ack check for data records sending to make sure every data arrive server. b) LHT65N will send data in CONFIRMED Mode when PNACKMD=1, but it won't re-transmit the same packet , it will just mark it as NONE-ACK and resend after network is detected. 546 546 609 +Below is the typical case for the auto-update datalog feature (Set PNACKMD=1) 547 547 611 +[[image:image-20220703111700-2.png||height="381" width="1119"]] 612 + 613 + 548 548 === 2.6.2 Unix TimeStamp === 549 549 550 550 ... ... @@ -567,6 +567,7 @@ 567 567 568 568 === 2.6.3 Set Device Time === 569 569 636 + 570 570 ((( 571 571 There are two ways to set device's time: 572 572 ))) ... ... @@ -584,7 +584,7 @@ 584 584 ))) 585 585 586 586 ((( 587 -(% style="color:red" %)Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn ’t support. If server doesn’t support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.654 +(% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.** 588 588 ))) 589 589 590 590 ((( ... ... @@ -603,6 +603,7 @@ 603 603 604 604 === 2.6.4 Poll sensor value === 605 605 673 + 606 606 User can poll sensor value based on timestamps from the server. Below is the downlink command. 607 607 608 608 [[image:image-20220523152302-15.png||_mstalt="451581" _mstvisible="3"]] ... ... @@ -620,6 +620,7 @@ 620 620 621 621 === 2.6.5 Datalog Uplink payload === 622 622 691 + 623 623 (% _msthash="315267" _msttexthash="2245087" _mstvisible="1" %) 624 624 The Datalog poll reply uplink will use below payload format. 625 625 ... ... @@ -626,6 +626,9 @@ 626 626 (% _mstvisible="1" %) 627 627 ((( 628 628 (% _mstvisible="2" %) 698 + 699 + 700 +(% _mstvisible="2" %) 629 629 (% _msthash="506080" _msttexthash="451581" _mstvisible="4" %)**Retrieval data payload** 630 630 ))) 631 631 ... ... @@ -888,7 +888,7 @@ 888 888 (% _mstvisible="1" %) 889 889 ((( 890 890 (% _msthash="506083" _msttexthash="737269" _mstvisible="2" style="text-align: left;" %) 891 - Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03 963 + Stop time 60066DA7= time 21/1/19 05:27:(% _msthash="903005" _msttexthash="9672" _mstvisible="2" %)03 892 892 ))) 893 893 894 894 (% _mstvisible="1" %) ... ... @@ -950,12 +950,15 @@ 950 950 951 951 == 2.7 Alarm Mode == 952 952 1025 + 953 953 ((( 954 954 when the device is in alarm mode, it checks the built-in sensor temperature for a short time. if the temperature exceeds the preconfigured range, it sends an uplink immediately. 955 955 ))) 956 956 957 957 ((( 958 -(% style="color:red" %)Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled. 1031 +(% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.** 1032 + 1033 + 959 959 ))) 960 960 961 961 ((( ... ... @@ -985,10 +985,25 @@ 985 985 ))) 986 986 ))) 987 987 1063 +(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX** 988 988 1065 +Total bytes: 8 bytes 989 989 1067 +**Example:**AA0100010001003C 1068 + 1069 +WMOD=01 1070 + 1071 +CITEMP=0001 1072 + 1073 +TEMPlow=0001 1074 + 1075 +TEMPhigh=003C 1076 + 1077 + 1078 + 990 990 == 2.8 LED Indicator == 991 991 1081 + 992 992 The LHT65 has a triple color LED which for easy showing different stage . 993 993 994 994 While user press ACT button, the LED will work as per LED status with ACT button. ... ... @@ -1001,8 +1001,10 @@ 1001 1001 * For each success downlink, the PURPLE LED will blink once 1002 1002 1003 1003 1094 + 1004 1004 == 2.9 installation == 1005 1005 1097 + 1006 1006 (% _mstvisible="1" %) 1007 1007 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]] 1008 1008 ... ... @@ -1012,8 +1012,10 @@ 1012 1012 1013 1013 == 3.1 E2 Extension Cable == 1014 1014 1107 + 1015 1015 [[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]] 1016 1016 1110 + 1017 1017 **1m long breakout cable for LHT65N. Features:** 1018 1018 1019 1019 * ((( ... ... @@ -1030,6 +1030,9 @@ 1030 1030 ))) 1031 1031 * ((( 1032 1032 Exposed All pins from the LHT65N Type-C connector. 1127 + 1128 + 1129 + 1033 1033 ))) 1034 1034 1035 1035 [[image:image-20220619092421-3.png||height="371" width="529"]] ... ... @@ -1052,8 +1052,10 @@ 1052 1052 * Working voltage 2.35v ~~ 5v 1053 1053 1054 1054 1152 + 1055 1055 = 4. Configure LHT65N via AT command or LoRaWAN downlink = 1056 1056 1155 + 1057 1057 ((( 1058 1058 Use can configure LHT65N via AT Command or LoRaWAN Downlink. 1059 1059 ))) ... ... @@ -1098,10 +1098,13 @@ 1098 1098 ))) 1099 1099 1100 1100 1200 + 1101 1101 == 4.1 Set Transmit Interval Time == 1102 1102 1203 + 1103 1103 Feature: Change LoRaWAN End Node Transmit Interval. 1104 1104 1206 + 1105 1105 (% style="color:#4f81bd" %)**AT Command: AT+TDC** 1106 1106 1107 1107 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]] ... ... @@ -1118,10 +1118,13 @@ 1118 1118 * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 1119 1119 1120 1120 1223 + 1121 1121 == 4.2 Set External Sensor Mode == 1122 1122 1226 + 1123 1123 Feature: Change External Sensor Mode. 1124 1124 1229 + 1125 1125 (% style="color:#4f81bd" %)**AT Command: AT+EXT** 1126 1126 1127 1127 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]] ... ... @@ -1140,8 +1140,10 @@ 1140 1140 * 0xA20702003c: Same as AT+SETCNT=60 1141 1141 1142 1142 1248 + 1143 1143 == 4.3 Enable/Disable uplink Temperature probe ID == 1144 1144 1251 + 1145 1145 ((( 1146 1146 Feature: If PID is enabled, device will send the temperature probe ID on: 1147 1147 ))) ... ... @@ -1155,6 +1155,8 @@ 1155 1155 1156 1156 ((( 1157 1157 PID is default set to disable (0) 1265 + 1266 + 1158 1158 ))) 1159 1159 1160 1160 (% style="color:#4f81bd" %)**AT Command:** ... ... @@ -1168,10 +1168,13 @@ 1168 1168 * **0xA801** **~-~->** AT+PID=1 1169 1169 1170 1170 1280 + 1171 1171 == 4.4 Set Password == 1172 1172 1283 + 1173 1173 Feature: Set device password, max 9 digits 1174 1174 1286 + 1175 1175 (% style="color:#4f81bd" %)**AT Command: AT+PWORD** 1176 1176 1177 1177 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]] ... ... @@ -1185,8 +1185,10 @@ 1185 1185 1186 1186 == 4.5 Quit AT Command == 1187 1187 1300 + 1188 1188 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands. 1189 1189 1303 + 1190 1190 (% style="color:#4f81bd" %)**AT Command: AT+DISAT** 1191 1191 1192 1192 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]] ... ... @@ -1200,6 +1200,7 @@ 1200 1200 1201 1201 == 4.6 Set to sleep mode == 1202 1202 1317 + 1203 1203 Feature: Set device to sleep mode 1204 1204 1205 1205 * **AT+Sleep=0** : Normal working mode, device will sleep and use lower power when there is no LoRa message ... ... @@ -1215,10 +1215,13 @@ 1215 1215 * There is no downlink command to set to Sleep mode. 1216 1216 1217 1217 1333 + 1218 1218 == 4.7 Set system time == 1219 1219 1336 + 1220 1220 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]] 1221 1221 1339 + 1222 1222 (% _msthash="315253" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:** 1223 1223 1224 1224 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]] ... ... @@ -1232,6 +1232,7 @@ 1232 1232 1233 1233 == 4.8 Set Time Sync Mode == 1234 1234 1353 + 1235 1235 ((( 1236 1236 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply this command. 1237 1237 ))) ... ... @@ -1238,6 +1238,8 @@ 1238 1238 1239 1239 ((( 1240 1240 SYNCMOD is set to 1 by default. If user want to set a different time from LoRaWAN server, user need to set this to 0. 1360 + 1361 + 1241 1241 ))) 1242 1242 1243 1243 (% _msthash="506058" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:** ... ... @@ -1254,8 +1254,10 @@ 1254 1254 1255 1255 == 4.9 Set Time Sync Interval == 1256 1256 1378 + 1257 1257 Feature: Define System time sync interval. SYNCTDC default value: 10 days. 1258 1258 1381 + 1259 1259 (% _msthash="315256" _msttexthash="137488" style="color:#4f81bd" %)**AT Command:** 1260 1260 1261 1261 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]] ... ... @@ -1269,8 +1269,10 @@ 1269 1269 1270 1270 == 4.10 Print data entries base on page. == 1271 1271 1395 + 1272 1272 Feature: Print the sector data from start page to stop page (max is 416 pages). 1273 1273 1398 + 1274 1274 (% _msthash="315258" _msttexthash="264953" style="color:#4f81bd" %)**AT Command: AT+PDTA** 1275 1275 1276 1276 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]] ... ... @@ -1284,8 +1284,10 @@ 1284 1284 1285 1285 == 4.11 Print last few data entries. == 1286 1286 1412 + 1287 1287 Feature: Print the last few data entries 1288 1288 1415 + 1289 1289 (% _msthash="315260" _msttexthash="288522" style="color:#4f81bd" %)**AT Command: AT+PLDTA** 1290 1290 1291 1291 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]] ... ... @@ -1299,6 +1299,7 @@ 1299 1299 1300 1300 == 4.12 Clear Flash Record == 1301 1301 1429 + 1302 1302 Feature: Clear flash storage for data log feature. 1303 1303 1304 1304 ... ... @@ -1312,11 +1312,14 @@ 1312 1312 * Example: 0xA301 ~/~/Same as AT+CLRDTA 1313 1313 1314 1314 1443 + 1315 1315 == 4.13 Auto Send None-ACK messages == 1316 1316 1446 + 1317 1317 (% _msthash="315394" _msttexthash="51837149" _mstvisible="1" %) 1318 1318 Feature: LHT65N will wait for ACK for each uplink, If LHT65N doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N keeps sending messages in normal periodically. Once LHT65N gets ACK from a server, it will consider the network is ok and start to send the not-arrive message. 1319 1319 1450 + 1320 1320 (% style="color:#4f81bd" %)**AT Command: AT+PNACKMD** 1321 1321 1322 1322 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %) ... ... @@ -1331,10 +1331,12 @@ 1331 1331 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1 1332 1332 1333 1333 1465 + 1334 1334 = 5. Battery & How to replace = 1335 1335 1336 1336 == 5.1 Battery Type == 1337 1337 1470 + 1338 1338 ((( 1339 1339 ((( 1340 1340 LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters. ... ... @@ -1355,8 +1355,10 @@ 1355 1355 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery. 1356 1356 1357 1357 1491 + 1358 1358 == 5.2 Replace Battery == 1359 1359 1494 + 1360 1360 LHT65N has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery. Any brand should be ok. 1361 1361 1362 1362 [[image:image-20220515075440-2.png||_mstalt="429546" _mstvisible="3" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" _mstvisible="3" height="193" width="257"]] ... ... @@ -1364,6 +1364,7 @@ 1364 1364 1365 1365 == 5.3 Battery Life Analyze == 1366 1366 1502 + 1367 1367 ((( 1368 1368 Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life: 1369 1369 [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]] ... ... @@ -1381,8 +1381,10 @@ 1381 1381 1382 1382 = 6. FAQ = 1383 1383 1520 + 1384 1384 == 6.1 How to use AT Command? == 1385 1385 1523 + 1386 1386 LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to connect to LHT65 for using AT command, as below. 1387 1387 1388 1388 [[image:image-20220530085651-1.png||_mstalt="429949"]] ... ... @@ -1601,40 +1601,43 @@ 1601 1601 AT+PID: Get or set the PID 1602 1602 1603 1603 1742 + 1604 1604 == 6.2 Where to use AT commands and Downlink commands == 1605 1605 1606 -(% _msthash="506131" _msttexthash="14585714" %) 1607 -AT commands: 1608 1608 1746 +**AT commands:** 1747 + 1609 1609 [[image:image-20220620153708-1.png||height="603" width="723"]] 1610 1610 1611 -(% _msthash="506132" _msttexthash="337922" %) 1612 -Downlink commands: 1613 1613 1751 +**Downlink commands:** 1614 1614 1615 -(% _msthash="506133" _msttexthash="33046" %) 1616 -**TTN:** 1617 1617 1754 + 1755 +(% style="color:blue" %)**TTN:** 1756 + 1618 1618 [[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]] 1619 1619 1620 1620 1621 -(% _msthash="506134" _msttexthash="11113791" %) 1622 -**Helium:** 1623 1623 1761 +(% style="color:blue" %)**Helium:** 1762 + 1624 1624 [[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]] 1625 1625 1626 1626 1627 -(% _msthash="506135" _msttexthash="4159844" %) 1628 -**Chirpstack:The downlink window will not be displayed until the network is accessed** 1629 1629 1767 +(% style="color:blue" %)**Chirpstack: The downlink window will not be displayed until the network is accessed** 1768 + 1769 + 1630 1630 [[image:image-20220615094850-6.png||_mstalt="433082"]] 1631 1631 1772 + 1632 1632 [[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]] 1633 1633 1634 1634 1635 -(% _msthash="506136" _msttexthash="39286" %) 1636 -**Aws:** 1637 1637 1777 +(% style="color:blue" %)**Aws:** 1778 + 1638 1638 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]] 1639 1639 1640 1640 ... ... @@ -1641,6 +1641,7 @@ 1641 1641 1642 1642 == 6.3 How to change the uplink interval? == 1643 1643 1785 + 1644 1644 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_msthash="506137" _msttexthash="5712018"]] 1645 1645 1646 1646 ... ... @@ -1647,6 +1647,7 @@ 1647 1647 1648 1648 == 6.4 How to use TTL-USB to connect a PC to input AT commands? == 1649 1649 1792 + 1650 1650 [[image:image-20220615153355-1.png]] 1651 1651 1652 1652 [[image:1655802313617-381.png]] ... ... @@ -1703,13 +1703,16 @@ 1703 1703 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device. 1704 1704 1705 1705 1849 + 1706 1706 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command == 1707 1707 1852 + 1708 1708 [[image:image-20220623110706-1.png]] 1709 1709 1710 1710 1711 1711 [[image:image-20220623112117-4.png||height="459" width="343"]] 1712 1712 1858 + 1713 1713 ((( 1714 1714 In PC, User needs to set serial tool(such as [[**putty**>>https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600** (%%)to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:(% style="color:green" %)**123456**(% style="color:red" %))(%%) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout. 1715 1715 ))) ... ... @@ -1720,10 +1720,13 @@ 1720 1720 [[image:image-20220615154519-3.png||height="672" width="807"]] 1721 1721 1722 1722 1723 -== 6.6 How to use USB-TYPE-C to connect PC to upgrade firmware? == 1724 1724 1870 +== 6.7 How to use USB-TYPE-C to connect PC to upgrade firmware? == 1871 + 1872 + 1725 1725 [[image:image-20220623110706-1.png]] 1726 1726 1875 + 1727 1727 (% style="color:blue" %)**Step1**(%%): Install TremoProgrammer first. 1728 1728 1729 1729 [[image:image-20220615170542-5.png]] ... ... @@ -1740,6 +1740,7 @@ 1740 1740 (% _msthash="506146" _msttexthash="52173160" %) 1741 1741 Press and hold the start key to restart and enter (% _mstvisible="1" %)bootlaod(%%) mode. 1742 1742 1892 + 1743 1743 (% style="color:blue" %)**Step3:**(%%)Select the device port to be connected, baud rate and bin file to be downloaded. 1744 1744 1745 1745 [[image:image-20220615171334-6.png]] ... ... @@ -1756,6 +1756,7 @@ 1756 1756 Finally,restart reset device again 1757 1757 1758 1758 1909 + 1759 1759 = 7. Order Info = 1760 1760 1761 1761 ... ... @@ -1800,11 +1800,13 @@ 1800 1800 1801 1801 = 9. Reference material = 1802 1802 1954 + 1803 1803 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]] 1804 1804 1805 1805 1806 1806 = 10. FCC Warning = 1807 1807 1960 + 1808 1808 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: 1809 1809 1810 1810 (1) This device may not cause harmful interference;
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