Version 64.4 by Xiaoling on 2022/06/25 09:41
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1 {{box cssClass="floatinginfobox" title="**Contents**"}}
2 {{toc/}}
3 {{/box}}
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6 (% style="text-align:center" %)
7 [[image:image-20220530000243-1.png||height="332" width="531"]]
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10 Table of Contents：
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12 {{toc/}}
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19
20
21 = 1.  Introduction =
22
23 == 1.1  What is GroPoint Air ==
24
25
26 The Dragino GroPoint is a (% style="color:blue" %)**LoRaWAN Multi Soil Segment Converter**(%%) for IoT of Agriculture. It is designed to connect to [[GroPoint Profile Multi-depth Soil moisture and temperature profile Sensor>>url:https://www.gropoint.com/products/soil-sensors/gropoint-profile]] and get GroPoint Profile’s reading and send it to IoT server via LoRaWAN wireless network.
27
28 (% style="color:blue" %)**GroPoint Profile is plug-and-play with GroPoint Air**(%%) to get soil moisture and send via wireless. GroPoint Profile is powered by GroPoint Air, (% style="color:blue" %)**no need external power source**(%%).
29
30 The LoRa wireless technology used in GroPoint Air allows devices to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
31
32 GroPoint Air is powered by (% style="color:blue" %)**an 8500mAh Li-SOCI2 battery**(%%), it is designed for long-term use for up to 5 years.
33
34 Each GroPoint Air is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to the local LoRaWAN server and it will auto-connect after power on.
35
36 [[image:image-20220530002019-2.png||height="295" width="655"]]
37
38
39 == 1.2  Features ==
40
41
42 * LoRaWAN 1.0.3 Class A
43 * Ultra-low power consumption
44 * Supports GroPoint Profile
45 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
46 * AT Commands to change parameters
47 * Uplink on periodically
48 * Downlink to change configure
49 * IP66 Waterproof Enclosure
50 * 8500mAh Battery for long term use
51
52
53
54
55
56
57 == 1.3  Probe Specification ==
58
59 GroPoint Air includes an M12 5-pin connector, the pins definition matches GroPoint Profile M12 version probes. Users can connect this connector to GroPoint Profile directly.
60
61 GroPoint Profile includes a series of multi-depth soil moisture and temperature sensors. The specification for GroPoint Profile can be found here: [[https:~~/~~/www.gropoint.com/products/soil-sensors/gropoint-profile>>https://www.gropoint.com/products/soil-sensors/gropoint-profile]]
62
63
64 == 1.4  Applications ==
65
66 * Smart Agriculture
67
68
69
70
71
72 == 1.5  Pin Mapping ==
73
74 Inner PCB Pin mapping for reference:
75
76 [[image:image-20220530002453-3.png||height="262" width="493"]]
77
78
79 = 2.  Connect LoRaWAN Network =
80
81
82 == 2.1  LED Indicator ==
83
84 The GroPoint Air has an internal LED which can show the status of different states.
85
86 * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
87 * Blink once when device transmits a packet.
88
89
90
91
92
93
94 == 2.2  Firmware and Changelog ==
95
96 Firmware Download Location: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/GroPoint_Air/firmware/>>https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/GroPoint_Air/firmware/]]
97
98 Change Log:
99
100
101 = 3.  How to use? =
102
103 == 3.1  Connect to GroPoint Profile ==
104
105 GroPoint Air must be used with [[GroPoint Profile>>https://www.gropoint.com/products/soil-sensors/gropoint-profile]]. There are different interface model from GroPoint, users need to choose the one:
106
107 * Support RS485 Interface
108 * with M12 5pin connector.
109
110 Such model in GroPoint Profile is: **2625-N-T-x-M-M **(Where x is different depending on how many levels it detects).
111
112
113 == 3.2  Connect to LoRaWAN Network? ==
114
115 Each GroPoint Air is shipped with a worldwide unique set of OTAA keys. To use GroPoint Air in a LoRaWAN network, user needs to input the OTAA keys in the LoRaWAN network server. So GroPoint Air can join the LoRaWAN network and start to transmit sensor data
116
117
118 == 3.3  Example to use for LoRaWAN network ==
119
120 This section shows an example of how to join the TTN V3 LoRaWAN IoT server. Usages with other LoRaWAN IoT servers are similar.
121
122 * In this use case, the GroPoint Air measures soil moisture and temperature and sends the status to the LoRaWAN server.The GroPoint Air will uplink different types of messages to the LoRaWAN server. See [[Uplink payload>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/#H2.3UplinkPayload]] for detail.
123
124 Assume the DLOS8 is already set to connect to the [[TTN V3 network >>url:https://eu1.cloud.thethings.network/]]. We need to add the GroPoint Air device in TTN V3:
125
126 **Step 1**: Create a device in TTN V3 with the OTAA keys from GroPoint Air.
127
128 Each GroPoint Air is shipped with a sticker with the default device EUI as below:
129
130
131 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/1652944593868-618.png?rev=1.1||alt="1652944593868-618.png"]]
132
133 Users can enter these keys in the LoRaWAN Server portal. Below is the TTN V3 screenshot:
134
135 Add APP EUI in the application.
136
137 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519151704-1.png?rev=1.1||alt="image-20220519151704-1.png"]]
138
139 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519151704-2.png?width=717&height=322&rev=1.1||alt="image-20220519151704-2.png" height="322" width="717"]]
140
141 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519151704-3.png?rev=1.1||alt="image-20220519151704-3.png"]]
142
143 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519151704-4.png?rev=1.1||alt="image-20220519151704-4.png"]]
144
145 Add APP KEY and DEV EUI
146
147 **Step 2**: Power on GroPoint Air
148
149 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519094347-1.png?width=725&height=430&rev=1.1||alt="image-20220519094347-1.png" height="430" width="725"]]
150
151 Put the jumper to power on GroPoint Air and it will auto-join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and the user can see it in the panel.
152
153 [[image:image-20220611174943-1.png||height="139" width="1008"]]
154
155
156 === **Decoder in TTN V3** ===
157
158 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/1652927365661-475.png?width=723&height=359&rev=1.1||alt="1652927365661-475.png" height="359" width="723"]]
159
160 Please check the decoder [gropoint_Decoder_V1.0.0.js] from this link:
161
162 [[https:~~/~~/www.dropbox.com/sh/4strg6w7kkekdc4/AAAUKdAV3XKhOi3t6YjA8j9za?dl=0>>https://www.dropbox.com/sh/4strg6w7kkekdc4/AAAUKdAV3XKhOi3t6YjA8j9za?dl=0]]
163
164
165 == 3.4  Uplink Payload Analyze ==
166
167 Uplink payloads have two types:
168
169 * (((
170 Report temperature and humidity status normally: Use FPORT=2
171 )))
172 * (((
173 Other control commands: Use other FPORT fields.
174 )))
175
176 The application server should parse the correct value based on FPORT settings.
177
178
179 == 3.5  temperature and humidity Value, Uplink FPORT~=2 ==
180
181
182 GroPoint Air will send this uplink after Device Status once join the LoRaWAN network successfully. And GroPoint Air will:
183
184 periodically send this uplink every 20 minutes, this interval can be changed.
185
186 The drawing below shows the probe dimensions of the 2-8 segment probes, Temperature sen sor locations provided in table below:
187
188 [[image:image-20220621093414-1.png||height="932" width="816"]]
189
190 GroPoint Air's sensors come in six models:GPLP-2，GPLP-3，GPLP-4，GPLP-5，GPLP-6，GPLP-8.
191
192 The amount of temperature and humidity is different for each model, so the payload of each model is different.
193
194 Take GPLP-3 as an example：
195
196 Uplink Payload totals 21 bytes.
197
198 [[image:image-20220621100751-2.png||height="124" width="774"]]
199
200 [[image:image-20220611174943-1.png||height="139" width="1008"]]
201
202
203 For US915 frequency, when DR=0 and the payload length exceeds 11, the DR of this packet is switched to 1.
204
205 For AU915 frequency, when DR=2，Dwelltime=1 and the payload length exceeds 11, the DR of this packet is switched to 3.
206
207 For AS923 frequency, when DR=2，Dwelltime=1 and the payload length exceeds 11, the DR of this packet is switched to 3.
208
209
210 == 3.6  Show data on Datacake ==
211
212 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:
213
214 **Step 1**: Link TTNv3 to Datacake [[https:~~/~~/docs.datacake.de/lorawan/lns/thethingsindustries#create-integration-on-tti>>url:https://docs.datacake.de/lorawan/lns/thethingsindustries#create-integration-on-tti]]
215
216 **Step 2**: Configure SW3L in Datacake  ​​​​
217
218 [[image:image-20220613171007-1.png||height="567" width="542"]]
219
220 [[image:image-20220613171015-2.png||height="600" width="586"]]
221
222 [[image:image-20220613171029-3.png||height="507" width="513"]]
223
224 [[image:image-20220613171038-4.png||height="469" width="786"]]
225
226 [[image:image-20220613171105-5.png||height="533" width="949"]]
227
228 [[image:image-20220613171117-6.png||height="501" width="925"]]
229
230 [[image:image-20220613171124-7.png||height="466" width="877"]]
231
232
233
234 = 4.  Configure GroPoint Air via AT Command or LoRaWAN Downlink =
235
236 Use can configure GroPoint Air via AT Command or LoRaWAN Downlink.
237
238 * AT Command Connection: See [[FAQ>>url:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLMS01-LoRaWAN%20Leaf%20Moisture%20Sensor%20User%20Manual/#H6.FAQ]].
239 * LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>url:http://8.211.40.43/xwiki/bin/view/Main/]]
240
241 There are two kinds of commands to configure GroPoint Air, they are:
242
243 * (((
244 **~ General Commands**.
245 )))
246
247 These commands are to configure:
248
249 * General system settings like: uplink interval.
250 * LoRaWAN protocol & radio-related command.
251
252 They are the same for all Dragino Device that support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>url:http://8.211.40.43/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
253
254
255 * (((
256 **~ Commands special design for GroPoint Air**
257 )))
258
259 These commands only valid for GroPoint Air, as below:
260
261
262
263 == 4.1  Set Transmit Interval Time ==
264
265 Feature: Change LoRaWAN End Node Transmit Interval.
266
267 **AT Command: AT+TDC**
268
269 [[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLMS01-LoRaWAN%20Leaf%20Moisture%20Sensor%20User%20Manual/WebHome/image-20220607171554-8.png?rev=1.1||alt="image-20220607171554-8.png"]]
270
271 **Downlink Command: 0x01**
272
273 Format: Command Code (0x01) followed by 3 bytes time value.
274
275 If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
276
277 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
278 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
279
280
281
282
283
284
285 == 4.2  Set Interrupt Mode ==
286
287 Feature, Set Interrupt mode for GPIO_EXIT.
288
289 **AT Command: AT+INTMOD**
290
291 [[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLMS01-LoRaWAN%20Leaf%20Moisture%20Sensor%20User%20Manual/WebHome/image-20220607171716-9.png?rev=1.1||alt="image-20220607171716-9.png"]]
292
293 **Downlink Command: 0x06**
294
295 Format: Command Code (0x06) followed by 3 bytes.
296
297 This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
298
299 * Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
300 * Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
301
302
303
304
305
306
307 == (% id="cke_bm_55968S" style="display:none" %) (%%)4.3  Set the sensor delay time ==
308
309 Feature: Change the sensor delay time.
310
311 There are six models of GroPoint Air, and each model returns a different number of temperature and humidity. The more bytes of the returned value, the longer the delay. The AT+SDELAY command can adjust the time that the sensor returns data to the node, and can adjust different delays according to different types of sensors.
312
313 The default delay is 1000ms.
314
315 **AT Command: AT+SDELAY**
316
317 [[image:image-20220613175511-8.png]]
318
319 **Downlink Command: 0xA1**
320
321 Format: Command Code (0xA1) followed by 3 bytes time value.
322
323 If the downlink payload=A10007D0, it means set the sensor delay time to 0x0007D0=2000ms, while type code is A1.
324
325 * Example 1: Downlink Payload: A10003E8 ~/~/ Set the sensor delay time = 1000ms
326 * Example 2: Downlink Payload: A10007D0 ~/~/ Set the sensor delay time = 2000ms
327
328
329
330
331
332
333 == 4.4  Query sensor model function ==
334
335 Feature: Using this function will re-update the model.
336
337 **Downlink Command: 0xFA00**
338
339
340 == 4.5  Get Firmware Version Info ==
341
342 Feature: use downlink to get firmware version.
343
344 **Downlink Command: 0x26**
345
346 [[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLMS01-LoRaWAN%20Leaf%20Moisture%20Sensor%20User%20Manual/WebHome/image-20220607171917-10.png?rev=1.1||alt="image-20220607171917-10.png"]]
347
348 * Reply to the confirmation package: 26 01
349 * Reply to non-confirmed packet: 26 00
350
351
352
353 Device will send an uplink after got this downlink command. With below payload:
354
355 Configures info payload:
356
357 (% border="1" cellspacing="8" style="background-color:#ffffcc; color:green; width:510px" %)
358 |=(% style="width: 96px;" %)(((
359 **Size(bytes)**
360 )))|=(% style="width: 119px;" %)**1**|=(% style="width: 88px;" %)**1**|=(% style="width: 88px;" %)**1**|=(% style="width: 82px;" %)**2**|=(% style="width: 108px;" %)**1**|=(% style="width: 76px;" %)4|=(% style="width: 102px;" %)**1**
361 |(% style="width:96px" %)**Value**|(% style="width:119px" %)Software Type|(% style="width:88px" %)(((
362 Frequency
363
364 Band
365 )))|(% style="width:88px" %)Sub-band|(% style="width:82px" %)(((
366 Firmware
367
368 Version
369 )))|(% style="width:108px" %)Sensor Type|(% style="width:76px" %)Reserve|(% style="width:102px" %)(((
370 [[Message Type>>url:http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLMS01-LoRaWAN%20Leaf%20Moisture%20Sensor%20User%20Manual/#H2.3.6MessageType]]
371 Always 0x02
372 )))
373
374 **Software Type**: Always 0x03 for LLMS01
375
376 **Frequency Band**:
377
378 *0x01: EU868
379
380 *0x02: US915
381
382 *0x03: IN865
383
384 *0x04: AU915
385
386 *0x05: KZ865
387
388 *0x06: RU864
389
390 *0x07: AS923
391
392 *0x08: AS923-1
393
394 *0x09: AS923-2
395
396 *0x0A: AS923-3
397
398 *0x0B: AS923-4
399
400 **Sub-Band**: value 0x00 ~~ 0x08
401
402 **Firmware Version**: 0x0100, Means: v1.0.0 version
403
404 **Sensor Type**:
405
406 0x01: LSE01
407
408 0x02: LDDS75
409
410 0x03: LDDS20
411
412 0x04: LLMS01
413
414 0x05: LSPH01
415
416 0x06: LSNPK01
417
418 0x07: LDDS45
419
420 0x08: LSLP01
421
422
423 = 5.  Use AT Command =
424
425 == 5.1  Access AT Commands ==
426
427 GroPoint Air supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to GroPoint Air for using AT command, as below.
428
429 [[image:Main.User Manual for LoRaWAN End Nodes.LLMS01-LoRaWAN Leaf Moisture Sensor User Manual.WebHome@1654593668970-604.png||height="297" width="474"]]
430
431 **Connection:**
432
433 (% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
434
435 (% style="background-color:yellow" %)** USB TTL TXD <~-~-~-~-> UART_RXD**
436
437 (% style="background-color:yellow" %)** USB TTL RXD <~-~-~-~-> UART_TXD**
438
439
440 In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for GroPoint Air. GroPoint Air will output system info once power on as below:
441
442 [[image:Main.User Manual for LoRaWAN End Nodes.LLMS01-LoRaWAN Leaf Moisture Sensor User Manual.WebHome@1654653659449-932.png||height="471" width="674"]]
443
444 Valid AT Command please check [[Configure Device>>||anchor="H3.ConfigureLLMS01viaATCommandorLoRaWANDownlink"]].
445
446
447 = 6.  Battery & How to replace =
448
449 == 6.1  Battery Type ==
450
451 GroPoint Air is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is an un-rechargeable battery with a low discharge rate targeting more than 5 years use. This type of battery is commonly used in IoT targets for long-term running, such as water meters.
452
453 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
454
455
456 [[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLMS01-LoRaWAN%20Leaf%20Moisture%20Sensor%20User%20Manual/WebHome/1654593587246-335.png?rev=1.1||alt="1654593587246-335.png" height="408" width="574"]]
457
458 Minimum Working Voltage for the GroPoint Air:
459
460 GroPoint Air:  2.45v ~~ 3.6v
461
462
463 == 6.2  Power Consumption Analyze ==
464
465 Dragino Battery-powered products are all runs in Low Power mode. We have an updated 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 intervals.
466
467 Instruction to use as below:
468
469
470 **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/]]
471
472
473 **Step 2**: Open it and choose
474
475 * (((
476 Product Model
477 )))
478 * (((
479 Uplink Interval
480 )))
481 * (((
482 Working Mode
483 )))
484
485 And the Life expectation in different cases will be shown on the right.
486
487 [[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLMS01-LoRaWAN%20Leaf%20Moisture%20Sensor%20User%20Manual/WebHome/1654593605679-189.png?rev=1.1||alt="1654593605679-189.png"]]
488
489 The battery-related documents as below:
490
491 * (((
492 [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
493 )))
494 * (((
495 [[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
496 )))
497 * (((
498 [[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]]
499 )))
500
501 [[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLMS01-LoRaWAN%20Leaf%20Moisture%20Sensor%20User%20Manual/WebHome/image-20220607172042-11.png?rev=1.1||alt="image-20220607172042-11.png"]]
502
503
504 === ​6.2.1  Battery Note ===
505
506 The Li-SICO battery is designed for small current / long period applications. 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 to transmit LoRa, then the battery life may be decreased.
507
508
509 === 6.2.2  Replace the battery ===
510
511 (((
512 You can change the battery in GroPoint Air. The type of battery is not limited as long as the output is between 3v to 3.6v.
513 )))
514
515 (((
516 The default battery pack of GroPoint Air includes a ER26500 plus supercapacitor. If users can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most cases. The SPC can enlarge the battery life for high-frequency use (update period below 5 minutes).
517 )))
518
519
520
521 = 7.  FAQ =
522
523 == 7.1  How to change the LoRa Frequency Bands/Region ==
524
525 You can follow the instruction here: [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome||anchor="H2.HardwareUpgradeMethodSupportList"]].
526 When downloading the images, choose the required image file for download. ​
527
528
529 = 8.  Trouble Shooting =
530
531 == 8.1  AT Commands input doesn’t work ==
532
533 In 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 pressing the send key, user need to add ENTER in their string.
534
535
536 == 8.2  Why i see the payload is 7FFF? ==
537
538 The device will judge the length of the data received by the serial port. If the length of the received data is 0, it means that there is a problem with the sensor communication or the sensor is not connected properly, it is invalid data, and the uploaded data is 7FFF.
539
540
541 = 9.  Order Info =
542
543 Part Number: **GROPOINT AIR-M-XX**
544
545 **XX**: The default frequency band
546
547 * **AS923**: LoRaWAN AS923 band
548 * **AU915**: LoRaWAN AU915 band
549 * **EU433**: LoRaWAN EU433 band
550 * **EU868**: LoRaWAN EU868 band
551 * **KR920**: LoRaWAN KR920 band
552 * **US915**: LoRaWAN US915 band
553 * **IN865**: LoRaWAN IN865 band
554 * **CN470**: LoRaWAN CN470 band
555
556 (% class="wikigeneratedid" id="H200BPackingInfo" %)
557 ​
558
559
560
561
562
563 (% class="wikigeneratedid" %)
564 = 10.  Packing Info =
565
566 **Package Includes:  **
567
568 * GroPoint Air-M x 1
569
570 **Dimension and weight:**
571
572 * Device Size: cm
573 * Device Weight: g
574 * Package Size / pcs : cm
575 * Weight / pcs : g

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