Version 38.9 by Xiaoling on 2022/10/25 16:27

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David Huang 28.1 1 (% style="text-align:center" %)
2 [[image:image-20220907171221-1.jpeg]]
David Huang 25.1 3
David Huang 28.1 4
David Huang 25.1 5
David Huang 28.1 6 {{toc/}}
David Huang 25.1 7
David Huang 28.1 8
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Xiaoling 32.2 10 = 1.  Introduction =
David Huang 25.1 11
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Xiaoling 32.2 13 == 1.1 ​ What is NLMS01 Leaf Moisture Sensor ==
David Huang 26.1 14
David Huang 25.1 15
Xiaoling 38.6 16 (((
Xiaoling 32.2 17 The Dragino NLMS01 is a (% style="color:blue" %)**NB-IOT Leaf Moisture Sensor**(%%) for IoT of Agriculture. It is designed to measure the leaf moisture and temperature, so to send to the platform to analyze the leaf status such as : watering, moisturizing, dew, frozen. The probe is IP67 waterproof.
David Huang 25.1 18
Xiaoling 32.2 19 NLMS01 detects leaf's(% style="color:blue" %)** moisture and temperature use FDR method**(%%), it senses the dielectric constant cause by liquid over the leaf surface, and cover the value to leaf moisture. The probe is design in a leaf shape to best simulate the real leaf characterizes. The probe has as density as 15 leaf vein lines per centimeter which make it can senses small drop and more accuracy.
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David Huang 25.1 21 NarrowBand-Internet of Things (NB-IoT) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.
Xiaoling 38.9 22
23 NLMS01 supports different uplink methods include (% style="color:blue" %)**TCP,MQTT,UDP and CoAP  **(%%)for different application requirement.
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25 NLMS01 is powered by  (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method).
26
27 To use NLMS01, user needs to check if there is NB-IoT coverage in local area and with the bands NLMS01 supports. If the local operate support it, user needs to get a (% style="color:blue" %)**NB-IoT SIM card**(%%) from local operator and install NLMS01 to get NB-IoT network connection.
Xiaoling 38.6 28 )))
David Huang 25.1 29
Xiaoling 32.2 30
David Huang 25.1 31 ​[[image:image-20220907171221-2.png]]
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Xiaoling 32.2 33
David Huang 25.1 34 ​ [[image:image-20220907171221-3.png]]
35
36
37
Xiaoling 32.2 38 == ​1.2  Features ==
David Huang 25.1 39
Xiaoling 32.2 40
41 * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
42 * Monitor Leaf moisture
43 * Monitor Leaf temperature
44 * Moisture and Temperature alarm function
45 * Monitor Battery Level
46 * Uplink on periodically
47 * Downlink to change configure
48 * IP66 Waterproof Enclosure
49 * IP67 rate for the Sensor Probe
50 * Ultra-Low Power consumption
51 * AT Commands to change parameters
52 * Micro SIM card slot for NB-IoT SIM
53 * 8500mAh Battery for long term use
54
55 (((
56
57
58
David Huang 26.1 59 )))
David Huang 25.1 60
David Huang 26.1 61 == 1.3  Specification ==
David Huang 25.1 62
63
Xiaoling 32.2 64 (% style="color:#037691" %)**Common DC Characteristics:**
65
David Huang 25.1 66 * Supply Voltage: 2.1v ~~ 3.6v
67 * Operating Temperature: -40 ~~ 85°C
68
Xiaoling 32.2 69 (% style="color:#037691" %)**NB-IoT Spec:**
70
David Huang 25.1 71 * - B1 @H-FDD: 2100MHz
72 * - B3 @H-FDD: 1800MHz
73 * - B8 @H-FDD: 900MHz
74 * - B5 @H-FDD: 850MHz
75 * - B20 @H-FDD: 800MHz
76 * - B28 @H-FDD: 700MHz
77
Xiaoling 33.2 78 == 1.4  Probe Specification ==
Xiaoling 32.2 79
80
Xiaoling 33.2 81 (% style="color:#037691" %)**Leaf Moisture: percentage of water drop over total leaf surface**
David Huang 25.1 82
83 * Range 0-100%
84 * Resolution: 0.1%
85 * Accuracy: ±3%(0-50%);±6%(>50%)
86 * IP67 Protection
87 * Length: 3.5 meters
88
Xiaoling 33.2 89 (% style="color:#037691" %)**Leaf Temperature:**
David Huang 25.1 90
91 * Range -50℃~80℃
92 * Resolution: 0.1℃
93 * Accuracy: <±0.5℃(-10℃~70℃),<±1.0℃ (others)
94 * IP67 Protection
95 * Length: 3.5 meters
96
Xiaoling 33.2 97 == 1.5 ​ Applications ==
David Huang 25.1 98
Xiaoling 33.2 99
David Huang 25.1 100 * Smart Agriculture
101
Xiaoling 33.2 102 == 1.6  Pin mapping and power on ==
David Huang 25.1 103
Xiaoling 33.2 104
David Huang 25.1 105 ​[[image:image-20220907171221-4.png]]
106
107 **~ **
108
Xiaoling 33.2 109
David Huang 26.1 110 = 2.  Use NLMS01 to communicate with IoT Server =
David Huang 25.1 111
Xiaoling 33.2 112
David Huang 26.1 113 == 2.1  How it works ==
David Huang 25.1 114
Xiaoling 33.2 115
David Huang 25.1 116 The NLMS01 is equipped with a NB-IoT module, the pre-loaded firmware in NLMS01 will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by NLMS01.
117
118 The diagram below shows the working flow in default firmware of NLMS01:
119
Xiaoling 33.2 120
David Huang 25.1 121 [[image:image-20220907171221-5.png]]
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Xiaoling 33.2 123
124
David Huang 27.1 125 == 2.2 ​ Configure the NLMS01 ==
David Huang 25.1 126
Xiaoling 33.2 127
David Huang 27.1 128 === 2.2.1 Test Requirement ===
David Huang 25.1 129
Xiaoling 33.2 130
David Huang 25.1 131 To use NLMS01 in your city, make sure meet below requirements:
132
133 * Your local operator has already distributed a NB-IoT Network there.
134 * The local NB-IoT network used the band that NLMS01 supports.
135 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
136
Xiaoling 33.2 137 Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NLMS01 will use(% style="color:#037691" %)** CoAP(120.24.4.116:5683) **(%%)or raw(% style="color:#037691" %)** UDP(120.24.4.116:5601)** or(%%) (% style="color:#037691" %)**MQTT(120.24.4.116:1883)**(%%)or (% style="color:#037691" %)**TCP(120.24.4.116:5600)**(%%)protocol to send data to the test server
David Huang 25.1 138
Xiaoling 33.2 139
David Huang 25.1 140 [[image:image-20220907171221-6.png]] ​
141
Xiaoling 33.2 142
143
David Huang 27.1 144 === 2.2.2 Insert SIM card ===
David Huang 25.1 145
Xiaoling 33.2 146
David Huang 25.1 147 Insert the NB-IoT Card get from your provider.
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149 User need to take out the NB-IoT module and insert the SIM card like below:
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Xiaoling 33.2 151
David Huang 25.1 152 [[image:image-20220907171221-7.png]] ​
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Xiaoling 33.2 154
155
David Huang 27.1 156 === 2.2.3 Connect USB – TTL to NLMS01 to configure it ===
David Huang 25.1 157
158
Xiaoling 33.2 159 User need to configure NLMS01 via serial port to set the (% style="color:#037691" %)**Server Address** / **Uplink Topic** (%%)to define where and how-to uplink packets. NLMS01 support AT Commands, user can use a USB to TTL adapter to connect to NLMS01 and use AT Commands to configure it, as below.
David Huang 25.1 160
161
Xiaoling 33.2 162 (% style="color:blue" %)**Connection:**
David Huang 25.1 163
Xiaoling 33.2 164 **~ (% style="background-color:yellow" %)USB TTL GND <~-~-~-~-> GND(%%)**
David Huang 25.1 165
Xiaoling 33.2 166 **~ (% style="background-color:yellow" %)USB TTL TXD  <~-~-~-~-> UART_RXD(%%)**
167
168 **~ (% style="background-color:yellow" %)USB TTL RXD  <~-~-~-~-> UART_TXD(%%)**
169
170
David Huang 25.1 171 In the PC, use below serial tool settings:
172
Xiaoling 33.2 173 * Baud:  (% style="color:green" %)**9600**
174 * Data bits:**  (% style="color:green" %)8(%%)**
175 * Stop bits:  (% style="color:green" %)**1**
176 * Parity:  (% style="color:green" %)**None**
177 * Flow Control: (% style="color:green" %)**None**
David Huang 25.1 178
Xiaoling 33.2 179 Make sure the switch is in FLASH position, then power on device by connecting the jumper on NLMS01. NLMS01 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input.
David Huang 25.1 180
Xiaoling 33.2 181 ​[[image:image-20220913090720-1.png]]
David Huang 25.1 182
183
Xiaoling 33.2 184 (% style="color:red" %)**Note: the valid AT Commands can be found at:  **(%%)[[**https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0**>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
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186
187
David Huang 27.1 188 === 2.2.4 Use CoAP protocol to uplink data ===
David Huang 25.1 189
190
Xiaoling 33.2 191 (% style="color:red" %)**Note: if you don't have CoAP server, you can refer this link to set up one: **(%%)[[**http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
David Huang 25.1 192
193
Xiaoling 33.2 194 (% style="color:blue" %)**Use below commands:**
195
196 * (% style="color:#037691" %)**AT+PRO=1**          (%%) ~/~/  Set to use CoAP protocol to uplink
197 * (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5683   ** (%%) ~/~/  to set CoAP server address and port
198 * (% style="color:#037691" %)**AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" ** (%%) ~/~/  Set COAP resource path
199
David Huang 25.1 200 For parameter description, please refer to AT command set
201
202 [[image:image-20220907171221-9.png]]
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Xiaoling 33.2 205 After configure the server address and (% style="color:#037691" %)**reset the device**(%%) (via AT+ATZ ), NLMS01 will start to uplink sensor values to CoAP server.
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David Huang 25.1 207 [[image:image-20220907171221-10.png]] ​
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Xiaoling 33.2 209
210
David Huang 27.1 211 === 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
David Huang 25.1 212
Xiaoling 33.2 213
David Huang 25.1 214 This feature is supported since firmware version v1.0.1
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Xiaoling 33.2 216 * (% style="color:#037691" %)**AT+PRO=2   ** (%%) ~/~/  Set to use UDP protocol to uplink
Xiaoling 33.4 217 * (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5601     ** (%%) ~/~/  to set UDP server address and port
Xiaoling 33.2 218 * (% style="color:#037691" %)**AT+CFM=1       ** (%%) ~/~/  If the server does not respond, this command is unnecessary
David Huang 25.1 219
220 ​ [[image:image-20220907171221-11.png]]
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Xiaoling 33.2 222
David Huang 25.1 223 [[image:image-20220907171221-12.png]]
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Xiaoling 33.2 227
David Huang 27.1 228 === 2.2.6 Use MQTT protocol to uplink data ===
David Huang 25.1 229
Xiaoling 33.2 230
David Huang 25.1 231 This feature is supported since firmware version v110
232
Xiaoling 33.2 233 * (% style="color:#037691" %)**AT+PRO=3   ** (%%) ~/~/  Set to use MQTT protocol to uplink
234 * (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,1883   ** (%%) ~/~/  Set MQTT server address and port
235 * (% style="color:#037691" %)**AT+CLIENT=CLIENT       ** (%%) ~/~/  Set up the CLIENT of MQTT
236 * (% style="color:#037691" %)**AT+UNAME=UNAME                        **(%%)** **~/~/  Set the username of MQTT
237 * (% style="color:#037691" %)**AT+PWD=PWD                            **(%%)** **~/~/  Set the password of MQTT
238 * (% style="color:#037691" %)**AT+PUBTOPIC=PUB                    ** (%%) ~/~/  Set the sending topic of MQTT
239 * (% style="color:#037691" %)**AT+SUBTOPIC=SUB          ** (%%) ~/~/  Set the subscription topic of MQTT
David Huang 25.1 240
241 ​ [[image:image-20220907171221-13.png]]
242
Xiaoling 33.2 243
244
David Huang 25.1 245 [[image:image-20220907171221-14.png]]
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248
249 MQTT protocol has a much higher power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
250
Xiaoling 33.2 251
252
David Huang 27.1 253 === 2.2.7 Use TCP protocol to uplink data ===
David Huang 25.1 254
Xiaoling 33.2 255
David Huang 25.1 256 This feature is supported since firmware version v110
257
Xiaoling 33.2 258 * (% style="color:#037691" %)**AT+PRO=4   ** (%%) ~/~/  Set to use TCP protocol to uplink
259 * (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5600   ** (%%) ~/~/  to set TCP server address and port
David Huang 25.1 260
261 ​ [[image:image-20220907171221-15.png]]
262
Xiaoling 33.2 263
264
David Huang 25.1 265 [[image:image-20220907171221-16.png]]
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Xiaoling 33.2 269
David Huang 27.1 270 === 2.2.8 Change Update Interval ===
David Huang 25.1 271
Xiaoling 33.2 272
David Huang 25.1 273 User can use below command to change the **uplink interval**.
274
Xiaoling 33.2 275 * (% style="color:#037691" %)**AT+TDC=7200      ** (%%) ~/~/ Set Update Interval to 7200s (2 hour)
David Huang 25.1 276
Xiaoling 33.2 277 (% style="color:red" %)**NOTE: By default, the device will send an uplink message every 2 hour. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
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David Huang 26.1 281 == 2.3  Uplink Payload ==
David Huang 25.1 282
Xiaoling 33.2 283
David Huang 25.1 284 In this mode, uplink payload includes 87 bytes in total by default.
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286 Each time the device uploads a data package, 8 sets of recorded data will be attached. Up to 32 sets of recorded data can be uploaded.
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288
Xiaoling 38.3 289 (% border="1" style="background-color:#ffffcc; color:green; width:520px" %)
Xiaoling 38.8 290 |=(% scope="row" style="width: 50px;" %)**Size(bytes)**|(% style="width:40px" %)**8**|(% style="width:20px" %)**2**|(% style="width:20px" %)**2**|(% style="width:60px" %)**1**|(% style="width:20px" %)**1**|(% style="width:40px" %)**1**|(% style="width:40px" %)**2**|(% style="width:50px" %)**2**|(% style="width:50px" %)**4**|(% style="width:50px" %)**2**|(% style="width:40px" %)**2**|(% style="width:40px" %)**4**
291 |=(% style="width: 96px;" %)**Value**|(% style="width:82px" %)Device ID|(% style="width:42px" %)Ver|(% style="width:48px" %)BAT|(% style="width:124px" %)Signal Strength|(% style="width:58px" %)MOD|(% style="width:82px" %)Interrupt|(% style="width:113px" %)Leaf moisture|(% style="width:134px" %)Leaf Temperature|(% style="width:100px" %)Time stamp|(% style="width:137px" %)Leaf Temperature|(% style="width:110px" %)Leaf moisture|(% style="width:122px" %)Time stamp  .....
Xiaoling 33.2 292
David Huang 25.1 293 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NLMS01 uplink data.
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Xiaoling 33.2 295
David Huang 25.1 296 [[image:image-20220907171221-17.png]]
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Xiaoling 33.2 298
David Huang 25.1 299 The payload is ASCII string, representative same HEX:
300
Xiaoling 33.7 301 **0x (% style="color:red" %)__f868411056754138__  (% style="color:blue" %)__0064 __ (% style="color:green" %)__0c78__  (% style="color:#00b0f0" %)__17__  (% style="color:#7030a0" %)__01__  (% style="color:#d60093" %)__00__  (% style="color:#a14d07" %)__0225 __ (% style="color:#0020b0" %) __010b__  (% style="color:#420042" %)__6315537b__  (% style="color:#663300" %)//__010b0226631550fb__  __010e022663154d77  01110225631549f1  011502246315466b  01190223631542e5  011d022163153f62  011e022163153bde 011e022163153859__//(%%)**
David Huang 25.1 302
Xiaoling 33.7 303 where:
304
Xiaoling 38.2 305 * (% style="color:#037691" %)**Device ID:**(%%) 0xf868411056754138 = f868411056754138
David Huang 25.1 306
Xiaoling 38.2 307 * (% style="color:#037691" %)**Version:**(%%) 0x0064=100=1.0.0
308
Xiaoling 38.3 309 * (% style="color:#037691" %)**BAT:**       (%%)0x0c78 = 3192 mV = 3.192V
Xiaoling 38.2 310
311 * (% style="color:#037691" %)**Singal:**(%%)  0x17 = 23
312
313 * (% style="color:#037691" %)**Mod:**(%%)  0x01 = 1
314
315 * (% style="color:#037691" %)**Interrupt:**(%%) 0x00= 0
316
317 * (% style="color:#037691" %)**Leaf moisture:**(%%) 0x0225= 549 = 54.9%
318
319 * (% style="color:#037691" %)**Leaf Temperature: **(%%)0x010B =267=26.7 °C
320
Xiaoling 38.3 321 * (% style="color:#037691" %)**Time stamp :**   (%%)0x6315537b =1662342011 ([[Unix Epoch Time>>https://www.epochconverter.com/]])
Xiaoling 38.2 322
323 * (% style="color:#037691" %)**Leaf Temperature, Leaf moisture,Time stamp :  **(%%)010b0226631550fb
324
325 * (% style="color:#037691" %)**8 sets of recorded data: **(%%)Leaf Temperature, Leaf moisture,Time stamp : 010e022663154d77,.......
326
David Huang 26.1 327 == 2.4  Payload Explanation and Sensor Interface ==
David Huang 25.1 328
Xiaoling 33.3 329
David Huang 27.1 330 === 2.4.1  Device ID ===
David Huang 25.1 331
Xiaoling 33.3 332
David Huang 25.1 333 By default, the Device ID equal to the last 15 bits of IMEI.
334
Xiaoling 33.4 335 User can use (% style="color:#037691" %)**AT+DEUI**(%%) to set Device ID
David Huang 25.1 336
Xiaoling 33.3 337
Xiaoling 33.4 338 (% style="color:blue" %)**Example**:
David Huang 25.1 339
340 AT+DEUI=868411056754138
341
342 The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
343
Xiaoling 33.3 344
345
David Huang 27.1 346 === 2.4.2  Version Info ===
David Huang 25.1 347
Xiaoling 33.3 348
David Huang 25.1 349 Specify the software version: 0x64=100, means firmware version 1.00.
350
351 For example: 0x00 64 : this device is NLMS01 with firmware version 1.0.0.
352
Xiaoling 33.3 353
354
David Huang 27.1 355 === 2.4.3  Battery Info ===
David Huang 25.1 356
Xiaoling 33.3 357
David Huang 25.1 358 Check the battery voltage for NLMS01.
359
360 Ex1: 0x0B45 = 2885mV
361
362 Ex2: 0x0B49 = 2889mV
363
Xiaoling 33.3 364
365
David Huang 27.1 366 === 2.4.4  Signal Strength ===
David Huang 25.1 367
Xiaoling 33.3 368
David Huang 25.1 369 NB-IoT Network signal Strength.
370
371
Xiaoling 33.4 372 (% style="color:blue" %)**Ex1: 0x1d = 29**
373
David Huang 25.1 374 **0**  -113dBm or less
375
376 **1**  -111dBm
377
378 **2...30** -109dBm... -53dBm
379
380 **31**   -51dBm or greater
381
382 **99**    Not known or not detectable
383
Xiaoling 33.3 384
385
David Huang 27.1 386 === 2.4.5  Leaf moisture ===
David Huang 25.1 387
Xiaoling 33.3 388
Xiaoling 33.4 389 Get the moisture of the (% style="color:#037691" %)**Leaf**(%%). The value range of the register is 300-1000(Decimal), divide this value by 100 to get the percentage of moisture in the Leaf.
David Huang 25.1 390
Xiaoling 33.4 391 For example, if the data you get from the register is (% style="color:#037691" %)**__0x05 0xDC__**(%%), the moisture content in the (% style="color:#037691" %)**Leaf**(%%) is
David Huang 25.1 392
Xiaoling 33.4 393 (% style="color:blue" %)**0229(H) = 549(D) /100 = 54.9.**
David Huang 25.1 394
Xiaoling 33.3 395
396
David Huang 27.1 397 === 2.4.6  Leaf Temperature ===
David Huang 25.1 398
Xiaoling 33.3 399
Xiaoling 33.4 400 Get the temperature in the Leaf. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the Leaf. For example, if the data you get from the register is (% style="color:#037691" %)**__0x09 0xEC__**(%%), the temperature content in the (% style="color:#037691" %)**Leaf **(%%)is
David Huang 25.1 401
Xiaoling 33.4 402 (% style="color:blue" %)**Example**:
David Huang 25.1 403
Xiaoling 33.4 404 If payload is **0105H**: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
David Huang 25.1 405
Xiaoling 33.4 406 If payload is **FF7EH**: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
David Huang 25.1 407
Xiaoling 33.3 408
409
David Huang 27.1 410 === 2.4.7  Timestamp ===
David Huang 25.1 411
Xiaoling 33.3 412
David Huang 25.1 413 Time stamp : 0x6315537b =1662342011
414
415 Convert Unix timestamp to time 2022-9-5 9:40:11.
416
Xiaoling 33.3 417
Xiaoling 33.4 418
David Huang 27.1 419 === 2.4.8  Digital Interrupt ===
David Huang 25.1 420
Xiaoling 33.3 421
Xiaoling 33.4 422 Digital Interrupt refers to pin (% style="color:#037691" %)**GPIO_EXTI**(%%), and there are different trigger methods. When there is a trigger, the NLMS01 will send a packet to the server.
David Huang 25.1 423
424 The command is:
425
Xiaoling 33.4 426 (% style="color:blue" %)**AT+INTMOD=3 ** (%%) ~/~/  (more info about INMOD please refer [[**AT Command Manual**>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]])**.**
David Huang 25.1 427
428 The lower four bits of this data field shows if this packet is generated by interrupt or not. Click here for the hardware and software set up.
429
430 Example:
431
432 0x(00): Normal uplink packet.
433
434 0x(01): Interrupt Uplink Packet.
435
Xiaoling 33.3 436
437
David Huang 27.1 438 === 2.4.9  ​+5V Output ===
David Huang 25.1 439
Xiaoling 33.3 440
David Huang 25.1 441 NLMS01 will enable +5V output before all sampling and disable the +5v after all sampling. 
442
443 The 5V output time can be controlled by AT Command.
444
Xiaoling 33.4 445 (% style="color:blue" %)**AT+5VT=1000**
David Huang 25.1 446
447 Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.** **
448
449
Xiaoling 33.3 450
David Huang 26.1 451 == 2.5  Downlink Payload ==
David Huang 25.1 452
Xiaoling 33.3 453
David Huang 25.1 454 By default, NLMS01 prints the downlink payload to console port.
455
456 [[image:image-20220907171221-18.png]] ​
457
Xiaoling 33.3 458
Xiaoling 33.4 459 (% style="color:blue" %)**Examples:**
David Huang 25.1 460
461
Xiaoling 33.4 462 * (% style="color:#037691" %)**Set TDC**
463
David Huang 25.1 464 If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
465
466 Payload:    01 00 00 1E    TDC=30S
467
468 Payload:    01 00 00 3C    TDC=60S
469
470
Xiaoling 33.4 471
472 * (% style="color:#037691" %)**Reset**
473
David Huang 25.1 474 If payload = 0x04FF, it will reset the NLMS01
475
476
Xiaoling 33.4 477
478 * (% style="color:#037691" %)**INTMOD**
479
David Huang 25.1 480 Downlink Payload: 06000003, Set AT+INTMOD=3
481
Xiaoling 33.3 482
483
David Huang 26.1 484 == 2.6  ​LED Indicator ==
David Huang 25.1 485
Xiaoling 33.3 486
David Huang 25.1 487 The NLMS01 has an internal LED which is to show the status of different state.
488
489 * When power on, NLMS01 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
490 * Then the LED will be on for 1 second means device is boot normally.
491 * After NLMS01 join NB-IoT network. The LED will be ON for 3 seconds.
492 * For each uplink probe, LED will be on for 500ms.
493
Xiaoling 33.3 494 == 2.7  Installation ==
495
496
David Huang 25.1 497 NLMS01 probe has two sides. The side without words are the sense side. Please be ware when install the sensor.
498
Xiaoling 33.3 499
David Huang 25.1 500 [[image:image-20220907171221-19.png]]
501
502
503
Xiaoling 33.3 504 == 2.8  Moisture and Temperature alarm function ==
David Huang 25.1 505
Xiaoling 33.3 506
Xiaoling 33.4 507 (% style="color:blue" %)**➢ AT Command:**
Xiaoling 33.3 508
Xiaoling 33.4 509 (% style="color:#037691" %)**AT+ HUMALARM =min,max**
Xiaoling 33.3 510
David Huang 25.1 511 ² When min=0, and max≠0, Alarm higher than max
512
513 ² When min≠0, and max=0, Alarm lower than min
514
515 ² When min≠0 and max≠0, Alarm higher than max or lower than min
516
517
Xiaoling 33.4 518 (% style="color:blue" %)**Example:**
Xiaoling 33.3 519
David Huang 25.1 520 AT+ HUMALARM =50,60 ~/~/ Alarm when moisture lower than 50.
521
522 AT+ TEMPALARM=min,max
523
524 ² When min=0, and max≠0, Alarm higher than max
525
526 ² When min≠0, and max=0, Alarm lower than min
527
528 ² When min≠0 and max≠0, Alarm higher than max or lower than min
529
530
Xiaoling 33.4 531 (% style="color:blue" %)**Example:**
Xiaoling 33.3 532
David Huang 25.1 533 AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
534
535
536
Xiaoling 33.3 537 == 2.9  Set the number of data to be uploaded and the recording time ==
David Huang 25.1 538
539
Xiaoling 33.4 540 (% style="color:blue" %)**➢ AT Command:**
David Huang 25.1 541
Xiaoling 33.4 542 * (% style="color:#037691" %)**AT+TR=900**   (%%) ~/~/  The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
543 * (% style="color:#037691" %)**AT+NOUD=8**  (%%)~/~/  The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
David Huang 25.1 544
Edwin Chen 36.1 545 The diagram below explains the relationship between TR, NOUD, and TDC more clearly**:**
David Huang 25.1 546
Edwin Chen 38.1 547 [[image:image-20221009001002-1.png||height="706" width="982"]]
David Huang 25.1 548
Edwin Chen 36.1 549
Xiaoling 33.3 550 == 2.10  Read or Clear cached data ==
551
552
Xiaoling 33.4 553 (% style="color:blue" %)**➢ AT Command:**
Xiaoling 33.3 554
Xiaoling 33.4 555 * (% style="color:#037691" %)**AT+CDP**      (%%) ~/~/  Read cached data
556 * (% style="color:#037691" %)**AT+CDP=0  ** (%%) ~/~/  Clear cached data
Xiaoling 33.3 557
David Huang 25.1 558 [[image:image-20220907171221-20.png]]
559
560
561
David Huang 26.1 562 == 2.11  ​Firmware Change Log ==
David Huang 25.1 563
Xiaoling 33.3 564
Xiaoling 33.5 565 Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/qdc3js2iu1vlipx/AACMHI3CvVb8g7YQMrIHY673a?dl=0>>https://www.dropbox.com/sh/qdc3js2iu1vlipx/AACMHI3CvVb8g7YQMrIHY673a?dl=0]]
David Huang 25.1 566
Xiaoling 33.5 567 Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
David Huang 25.1 568
Xiaoling 33.3 569
570
David Huang 26.1 571 == 2.12  ​Battery Analysis ==
David Huang 25.1 572
Xiaoling 33.3 573
David Huang 27.1 574 === 2.12.1  ​Battery Type ===
David Huang 25.1 575
Xiaoling 33.3 576
David Huang 25.1 577 The NLMS01 battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
578
579 The battery is designed to last for several years depends on the actually use environment and update interval. 
580
581 The battery related documents as below:
582
583 * [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
584 * [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
585 * [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
586
587 [[image:image-20220907171221-21.png]] ​
588
Xiaoling 33.3 589
590
David Huang 27.1 591 === 2.12.2  Power consumption Analyze ===
David Huang 25.1 592
Xiaoling 33.3 593
David Huang 25.1 594 Dragino battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
595
596 Instruction to use as below:
597
Xiaoling 33.4 598 (% style="color:blue" %)**Step 1:  **(%%)Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
David Huang 25.1 599
Xiaoling 33.4 600 (% style="color:blue" %)**Step 2: **(%%) Open it and choose
David Huang 25.1 601
602 * Product Model
603 * Uplink Interval
604 * Working Mode
605
606 And the Life expectation in difference case will be shown on the right.
607
608 [[image:image-20220907171221-22.jpeg]] ​
609
Xiaoling 33.3 610
David Huang 27.1 611 === 2.12.3  ​Battery Note ===
David Huang 25.1 612
Xiaoling 33.3 613
David Huang 25.1 614 The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
615
Xiaoling 33.3 616
617
David Huang 27.1 618 === 2.12.4  Replace the battery ===
David Huang 25.1 619
Xiaoling 33.3 620
David Huang 25.1 621 The default battery pack of NLMS01 includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
622
Xiaoling 33.3 623
624
David Huang 26.1 625 = 3. ​ Access NB-IoT Module =
David Huang 25.1 626
Xiaoling 33.3 627
David Huang 25.1 628 Users can directly access the AT command set of the NB-IoT module.
629
630 The AT Command set can refer the BC35-G NB-IoT Module AT Command: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/]] 
631
Xiaoling 33.3 632
David Huang 25.1 633 [[image:image-20220907171221-23.png]] ​
634
Xiaoling 33.3 635
636
David Huang 26.1 637 = 4.  Using the AT Commands =
David Huang 25.1 638
Xiaoling 33.3 639
David Huang 27.1 640 == 4.1  Access AT Commands ==
David Huang 25.1 641
Xiaoling 33.3 642
David Huang 25.1 643 See this link for detail:  [[https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
644
Xiaoling 33.9 645 AT+<CMD>?  :  Help on <CMD>
David Huang 25.1 646
Xiaoling 33.9 647 AT+<CMD>  :  Run <CMD>
David Huang 25.1 648
Xiaoling 33.9 649 AT+<CMD>=<value>:  Set the value
David Huang 25.1 650
Xiaoling 33.9 651 AT+<CMD>=?  :  Get the value
David Huang 25.1 652
Xiaoling 33.3 653
Xiaoling 33.4 654 (% style="color:#037691" %)**General Commands**      
David Huang 25.1 655
Xiaoling 33.9 656 AT  :  Attention       
David Huang 25.1 657
Xiaoling 33.9 658 AT?  :  Short Help     
David Huang 25.1 659
Xiaoling 33.9 660 ATZ  :  MCU Reset    
David Huang 25.1 661
Xiaoling 33.9 662 AT+TDC  :  Application Data Transmission Interval
David Huang 25.1 663
Xiaoling 33.9 664 AT+CFG  :  Print all configurations
David Huang 25.1 665
Xiaoling 33.9 666 AT+CFGMOD  :  Working mode selection
David Huang 25.1 667
Xiaoling 33.9 668 AT+INTMOD  :  Set the trigger interrupt mode
David Huang 25.1 669
Xiaoling 33.9 670 AT+5VT  :  Set extend the time of 5V power  
David Huang 25.1 671
Xiaoling 33.9 672 AT+PRO :  Choose agreement
David Huang 25.1 673
Xiaoling 33.9 674 AT+RXDL:  Extend the sending and receiving time
David Huang 25.1 675
Xiaoling 33.9 676 AT+SERVADDR :  Server Address
David Huang 25.1 677
Xiaoling 33.9 678 AT+APN :  Get or set the APN
David Huang 32.1 679
Xiaoling 33.9 680 AT+FBAND :  Get or Set whether to automatically modify the frequency band
David Huang 32.1 681
Xiaoling 33.9 682 AT+DNSCFG : Get or Set DNS Server
David Huang 32.1 683
684 AT+GETSENSORVALUE   : Returns the current sensor measurement
685
Xiaoling 33.9 686 AT+TR :  Get or Set record time"
David Huang 25.1 687
Xiaoling 33.9 688 AT+NOUD :  Get or Set the number of data to be uploaded
David Huang 25.1 689
Xiaoling 33.9 690 AT+CDP :  Read or Clear cached data
David Huang 25.1 691
Xiaoling 33.9 692 AT+TEMPALARM :  Get or Set alarm of temp
David Huang 25.1 693
Xiaoling 33.9 694 AT+HUMALARM :  Get or Set alarm of humidity
David Huang 25.1 695
696
Xiaoling 33.4 697 (% style="color:#037691" %)**COAP Management**      
David Huang 25.1 698
Xiaoling 33.10 699 AT+URI :  Resource parameters
David Huang 25.1 700
Xiaoling 33.3 701
Xiaoling 33.4 702 (% style="color:#037691" %)**UDP Management**
David Huang 25.1 703
Xiaoling 33.10 704 AT+CFM :  Upload confirmation mode (only valid for UDP)
David Huang 25.1 705
Xiaoling 33.3 706
Xiaoling 33.4 707 (% style="color:#037691" %)**MQTT Management**
David Huang 25.1 708
Xiaoling 33.10 709 AT+CLIENT  :  Get or Set MQTT client
David Huang 25.1 710
Xiaoling 33.10 711 AT+UNAME  : Get or Set MQTT Username
David Huang 25.1 712
Xiaoling 33.10 713 AT+PWD  :  Get or Set MQTT password
David Huang 25.1 714
Xiaoling 33.10 715 AT+PUBTOPIC  :  Get or Set MQTT publish topic
David Huang 25.1 716
Xiaoling 33.10 717 AT+SUBTOPIC :  Get or Set MQTT subscription topic
David Huang 25.1 718
Xiaoling 33.3 719
Xiaoling 33.4 720 (% style="color:#037691" %)**Information**          
David Huang 25.1 721
Xiaoling 33.10 722 AT+FDR :  Factory Data Reset
David Huang 25.1 723
Xiaoling 33.10 724 AT+PWORD :  Serial Access Password
David Huang 25.1 725
Xiaoling 33.3 726
727
David Huang 26.1 728 = ​5.  FAQ =
David Huang 25.1 729
Xiaoling 33.3 730
David Huang 27.1 731 == 5.1 ​ How to Upgrade Firmware ==
David Huang 25.1 732
Xiaoling 33.3 733
David Huang 25.1 734 User can upgrade the firmware for 1) bug fix, 2) new feature release.
735
736 Please see this link for how to upgrade:  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]]
737
738
Xiaoling 33.4 739 (% style="color:red" %)**Notice, NLMS01 and LLMS01 share the same mother board. They use the same connection and method to update.**
Xiaoling 33.3 740
741
Xiaoling 33.4 742
David Huang 26.1 743 = 6.  Trouble Shooting =
David Huang 25.1 744
Xiaoling 33.3 745
David Huang 27.1 746 == 6.1  ​Connection problem when uploading firmware ==
David Huang 25.1 747
Xiaoling 33.3 748
David Huang 25.1 749 **Please see: **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting]]
750
Xiaoling 33.3 751
752
David Huang 27.1 753 == 6.2  AT Command input doesn't work ==
David Huang 25.1 754
Xiaoling 33.3 755
Xiaoling 33.4 756 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.
David Huang 25.1 757
Xiaoling 33.3 758
759
David Huang 26.1 760 = 7. ​ Order Info =
David Huang 25.1 761
Xiaoling 33.3 762
David Huang 25.1 763 Part Number**:** NLMS01
764
Xiaoling 33.3 765
766
David Huang 26.1 767 = 8.  Packing Info =
David Huang 25.1 768
Xiaoling 33.3 769
Xiaoling 33.4 770 (% style="color:#037691" %)**Package Includes:**
David Huang 25.1 771
772 * NLMS01 NB-IoT Leaf Moisture Sensor x 1
773
Xiaoling 33.4 774 (% style="color:#037691" %)**Dimension and weight**:
David Huang 25.1 775
776 * Device Size: cm
777 * Device Weight: g
778 * Package Size / pcs : cm
779 * Weight / pcs : g
780
David Huang 26.1 781 = 9.  Support =
David Huang 25.1 782
Xiaoling 33.3 783
David Huang 25.1 784 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
785 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]
786
787