Changes for page NSPH01-NB-IoT Soil pH Sensor User Manual
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... ... @@ -9,34 +9,20 @@ 9 9 10 10 = 1. Introduction = 11 11 12 + 12 12 == 1.1 What is NSPH01 Soil pH Sensor == 13 13 14 14 15 -((( 16 16 The Dragino NSPH01 is a (% style="color:blue" %)**NB-IoT soil pH sensor**(%%) for IoT of Agriculture. It is designed to measure the soil pH and soil temperature, so to send to the platform to analyze the soil acid or alkali level. The probe is IP68 waterproof. 17 -))) 18 18 19 -((( 20 20 NSPH01 probe is made by Solid AgCl reference electrode and Pure metal pH sensitive electrode. It can detect soil's** (% style="color:blue" %)pH (%%)**with high accuracy and stable value. The NSPH01 probe can be buried into soil for long time use. 21 -))) 22 22 23 -((( 24 24 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. 25 -))) 21 +\\NSPH01 supports different uplink methods include (% style="color:blue" %)**TCP,MQTT,UDP and CoAP **(%%)for different application requirement. 22 +\\NSPH01 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) 23 +\\To use NSPH01, user needs to check if there is NB-IoT coverage in the installation area and with the bands NSPH01 supports. If the local operator supports it, user needs to get a (% style="color:blue" %)**NB-IoT SIM card** (%%)from local operator and install NSPH01 to get NB-IoT network connection. 26 26 27 -((( 28 -NSPH01 supports different uplink methods include (% style="color:blue" %)**TCP,MQTT,UDP and CoAP **(%%)for different application requirement. 29 -))) 30 30 31 -((( 32 -NSPH01 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) 33 -))) 34 - 35 -((( 36 -To use NSPH01, user needs to check if there is NB-IoT coverage in the installation area and with the bands NSPH01 supports. If the local operator supports it, user needs to get a (% style="color:blue" %)**NB-IoT SIM card** (%%)from local operator and install NSPH01 to get NB-IoT network connection. 37 -))) 38 - 39 - 40 40 [[image:image-20220907153151-1.png]] 41 41 42 42 ... ... @@ -43,6 +43,7 @@ 43 43 [[image:M_K`YF9`CAYAE\@}3T]FHT$9.png]] 44 44 45 45 32 + 46 46 == 1.2 Features == 47 47 48 48 ... ... @@ -72,12 +72,12 @@ 72 72 73 73 (% style="color:#037691" %)**NB-IoT Spec:** 74 74 75 -* B1 @H-FDD: 2100MHz 76 -* B3 @H-FDD: 1800MHz 77 -* B8 @H-FDD: 900MHz 78 -* B5 @H-FDD: 850MHz 79 -* B20 @H-FDD: 800MHz 80 -* B28 @H-FDD: 700MHz 62 +* - B1 @H-FDD: 2100MHz 63 +* - B3 @H-FDD: 1800MHz 64 +* - B8 @H-FDD: 900MHz 65 +* - B5 @H-FDD: 850MHz 66 +* - B20 @H-FDD: 800MHz 67 +* - B28 @H-FDD: 700MHz 81 81 82 82 83 83 == 1.4 Probe Specification == ... ... @@ -113,8 +113,10 @@ 113 113 [[image:image-20220907153300-2.png]] 114 114 115 115 103 + 116 116 = 2. Use NSPH01 to communicate with IoT Server = 117 117 106 + 118 118 == 2.1 How it works == 119 119 120 120 ... ... @@ -126,8 +126,10 @@ 126 126 [[image:image-20220907153416-3.png]] 127 127 128 128 118 + 129 129 == 2.2 Configure the NSPH01 == 130 130 121 + 131 131 === 2.2.1 Test Requirement === 132 132 133 133 ... ... @@ -137,6 +137,7 @@ 137 137 * The local NB-IoT network used the band that NSPH01 supports. 138 138 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server. 139 139 131 + 140 140 Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8. The NSPH01 will use** CoAP(120.24.4.116:5683) **or raw **UDP(120.24.4.116:5601)** or **MQTT(120.24.4.116:1883)**or **TCP(120.24.4.116:5600)**protocol to send data to the test server. 141 141 142 142 ... ... @@ -143,6 +143,7 @@ 143 143 [[image:image-20220907153445-4.png]] 144 144 145 145 138 + 146 146 === 2.2.2 Insert SIM card === 147 147 148 148 ... ... @@ -152,6 +152,7 @@ 152 152 [[image:image-20220907153505-5.png]] 153 153 154 154 148 + 155 155 === 2.2.3 Connect USB – TTL to NSPH01 to configure it === 156 156 157 157 ... ... @@ -175,6 +175,7 @@ 175 175 * Parity: (% style="color:green" %)**None** 176 176 * Flow Control: (% style="color:green" %)**None** 177 177 172 + 178 178 Make sure the switch is in FLASH position, then power on device by connecting the jumper on NSPH01. NSPH01 will output system info once power on as below, we can enter the (% style="color:green" %)**password: 12345678**(%%) to access AT Command input. 179 179 180 180 ... ... @@ -184,6 +184,7 @@ 184 184 (% 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]] 185 185 186 186 182 + 187 187 === 2.2.4 Use CoAP protocol to uplink data === 188 188 189 189 ... ... @@ -208,6 +208,7 @@ 208 208 [[image:image-20220907153612-8.png||height="529" width="729"]] 209 209 210 210 207 + 211 211 === 2.2.5 Use UDP protocol to uplink data(Default protocol) === 212 212 213 213 ... ... @@ -217,6 +217,7 @@ 217 217 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601 ** (%%) ~/~/ to set UDP server address and port 218 218 * (% style="color:blue" %)**AT+CFM=1 ** (%%) ~/~/ If the server does not respond, this command is unnecessar 219 219 217 + 220 220 [[image:image-20220907153643-9.png||height="401" width="734"]] 221 221 222 222 ... ... @@ -223,6 +223,7 @@ 223 223 [[image:image-20220907153703-10.png||height="309" width="738"]] 224 224 225 225 224 + 226 226 === 2.2.6 Use MQTT protocol to uplink data === 227 227 228 228 ... ... @@ -236,6 +236,7 @@ 236 236 * (% style="color:blue" %)**AT+PUBTOPIC=NSE01_PUB **(%%)~/~/ Set the sending topic of MQTT 237 237 * (% style="color:blue" %)**AT+SUBTOPIC=NSE01_SUB ** (%%) ~/~/ Set the subscription topic of MQTT 238 238 238 + 239 239 [[image:image-20220907153739-11.png||height="491" width="764"]] 240 240 241 241 ... ... @@ -245,6 +245,8 @@ 245 245 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. 246 246 247 247 248 + 249 + 248 248 === 2.2.7 Use TCP protocol to uplink data === 249 249 250 250 ... ... @@ -253,6 +253,7 @@ 253 253 * (% style="color:blue" %)**AT+PRO=4 ** (%%) ~/~/ Set to use TCP protocol to uplink 254 254 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600 ** (%%) ~/~/ to set TCP server address and port 255 255 258 + 256 256 [[image:image-20220907153818-13.png||height="486" width="668"]] 257 257 258 258 ... ... @@ -259,6 +259,7 @@ 259 259 [[image:image-20220907153827-14.png||height="236" width="684"]] 260 260 261 261 265 + 262 262 === 2.2.8 Change Update Interval === 263 263 264 264 ... ... @@ -269,6 +269,7 @@ 269 269 (% style="color:red" %)**NOTE: By default, the device will send an uplink message every 2 hours. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).** 270 270 271 271 276 + 272 272 == 2.3 Uplink Payload == 273 273 274 274 ... ... @@ -276,9 +276,9 @@ 276 276 277 277 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. 278 278 279 -(% border=" 1.5" style="background-color:#ffffcc; color:green; width:520px" %)280 -| =(% scope="row" style="width:50px;" %)**Size(bytes)**|(% style="width:40px" %)**8**|(% style="width:20px" %)**2**|(% style="width:25px" %)**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:35px" %)**2**|(% style="width:40px" %)**4**281 -| =(% style="width:;" %)**Value**|(% style="width:83px" %)Device ID|(% style="width:44px" %)Ver|(% style="width:42px" %)BAT|(% style="width:124px" %)Signal Strength|(% style="width:57px" %)MOD|(% style="width:80px" %)Interrupt|(% style="width:69px" %)Soil PH|(% style="width:134px" %)Soil Temperature|(% style="width:98px" %)Time stamp|(% style="width:134px" %)Soil Temperature|(% style="width:68px" %)Soil PH|(% style="width:125px" %)Time stamp .....284 +(% border="2" style="background-color:#ffffcc; color:green; width:1160px" %) 285 +|(% style="width:96px" %)**Size(bytes)**|(% style="width:83px" %)**8**|(% style="width:44px" %)**2**|(% style="width:42px" %)**2**|(% style="width:124px" %)1|(% style="width:57px" %)1|(% style="width:80px" %)1|(% style="width:69px" %)2|(% style="width:134px" %)2|(% style="width:98px" %)4|(% style="width:134px" %)2|(% style="width:68px" %)2|(% style="width:125px" %)4 286 +|(% style="width:96px" %)**Value**|(% style="width:83px" %)Device ID|(% style="width:44px" %)Ver|(% style="width:42px" %)BAT|(% style="width:124px" %)Signal Strength|(% style="width:57px" %)MOD|(% style="width:80px" %)Interrupt|(% style="width:69px" %)Soil PH|(% style="width:134px" %)Soil Temperature|(% style="width:98px" %)Time stamp|(% style="width:134px" %)Soil Temperature|(% style="width:68px" %)Soil PH|(% style="width:125px" %)Time stamp ..... 282 282 283 283 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data. 284 284 ... ... @@ -300,33 +300,26 @@ 300 300 ((( 301 301 302 302 303 - **where:**308 +where: 304 304 ))) 305 305 306 -* (% style="color:#037691" %)**Device ID:**(%%)** **0xf868411056754138 = f868411056754138 311 +* Device ID: 0xf868411056754138 = f868411056754138 312 +* Version: 0x0064=100=1.0.0 313 +* BAT: 0x0c78 = 3192 mV = 3.192V 314 +* Singal: 0x17 = 23 315 +* Mod: 0x01 = 1 316 +* Interrupt: 0x00= 0 317 +* Soil PH: 0x0225= 549 = 5.49 318 +* Soil Temperature: 0x010b =267=26.7 °C 319 +* Time stamp : 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]]) 320 +* Soil Temperature,Soil PH,Time stamp : 010b0226631550fb 321 +* 8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,....... 307 307 308 -* (% style="color:#037691" %)**Version:** (%%) 0x0064=100=1.0.0 309 309 310 -* (% style="color:#037691" %)**BAT:** (%%) 0x0c78 = 3192 mV = 3.192V 311 311 312 -* (% style="color:#037691" %)**Singal:** (%%)0x17 = 23 313 - 314 -* (% style="color:#037691" %)**Mod:** (%%) 0x01 = 1 315 - 316 -* (% style="color:#037691" %)**Interrupt:**(%%) 0x00= 0 317 - 318 -* (% style="color:#037691" %)**Soil PH:** (%%) 0x0225= 549 = 5.49 319 - 320 -* (% style="color:#037691" %)**Soil Temperature:**(%%) 0x010b =267=26.7 °C 321 - 322 -* (% style="color:#037691" %)**Time stamp :** (%%) 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]]) 323 - 324 -* (% style="color:#037691" %)**Soil Temperature,Soil PH,Time stamp : **(%%) 010b0226631550fb 325 - 326 -* (% style="color:#037691" %)**8 sets of recorded data:**(%%) Temperature,Soil PH,Time stamp : 010e022663154d77,....... 327 - 328 328 == 2.4 Payload Explanation and Sensor Interface == 329 329 327 + 330 330 === 2.4.1 Device ID === 331 331 332 332 ... ... @@ -342,6 +342,7 @@ 342 342 The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID. 343 343 344 344 343 + 345 345 === 2.4.2 Version Info === 346 346 347 347 ... ... @@ -350,6 +350,7 @@ 350 350 For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0. 351 351 352 352 352 + 353 353 === 2.4.3 Battery Info === 354 354 355 355 ... ... @@ -360,6 +360,7 @@ 360 360 Ex2: 0x0B49 = 2889mV 361 361 362 362 363 + 363 363 === 2.4.4 Signal Strength === 364 364 365 365 ... ... @@ -378,6 +378,7 @@ 378 378 **99** Not known or not detectable 379 379 380 380 382 + 381 381 === 2.4.5 Soil PH === 382 382 383 383 ... ... @@ -388,6 +388,7 @@ 388 388 (% style="color:blue" %)**0229(H) = 549(D) /100 = 5.49.** 389 389 390 390 393 + 391 391 === 2.4.6 Soil Temperature === 392 392 393 393 ... ... @@ -401,6 +401,7 @@ 401 401 If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C 402 402 403 403 407 + 404 404 === 2.4.7 Timestamp === 405 405 406 406 ... ... @@ -409,6 +409,7 @@ 409 409 Convert Unix timestamp to time 2022-9-5 9:40:11. 410 410 411 411 416 + 412 412 === 2.4.8 Digital Interrupt === 413 413 414 414 ... ... @@ -428,6 +428,7 @@ 428 428 0x(01): Interrupt Uplink Packet. 429 429 430 430 436 + 431 431 === 2.4.9 +5V Output === 432 432 433 433 ... ... @@ -440,6 +440,7 @@ 440 440 Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.** ** 441 441 442 442 449 + 443 443 == 2.5 Downlink Payload == 444 444 445 445 ... ... @@ -467,6 +467,7 @@ 467 467 Downlink Payload: 06000003, Set AT+INTMOD=3 468 468 469 469 477 + 470 470 == 2.6 LED Indicator == 471 471 472 472 ... ... @@ -477,8 +477,11 @@ 477 477 * After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds. 478 478 * For each uplink probe, LED will be on for 500ms. 479 479 488 + 489 + 480 480 == 2.7 Installation and Maintain == 481 481 492 + 482 482 === 2.7.1 Before measurement === 483 483 484 484 ... ... @@ -485,6 +485,7 @@ 485 485 If the NSPH01 has more than 7 days not use or just clean the pH probe. User should put the probe inside pure water for more than 24 hours for activation. If no put in water, user need to put inside soil for more than 24 hours to ensure the measurement accuracy. 486 486 487 487 499 + 488 488 === 2.7.2 Measurement === 489 489 490 490 ... ... @@ -509,6 +509,7 @@ 509 509 Insert the probe inside, method like measure the surface. 510 510 511 511 524 + 512 512 === 2.7.3 Maintain Probe === 513 513 514 514 ... ... @@ -519,6 +519,8 @@ 519 519 1. Avoid the probes to touch oily matter. Which will cause issue in accuracy. 520 520 1. The probe is IP68 can be put in water. 521 521 535 + 536 + 522 522 == 2.8 PH and Temperature alarm function == 523 523 524 524 ... ... @@ -551,6 +551,7 @@ 551 551 AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20. 552 552 553 553 569 + 554 554 == 2.9 Set the number of data to be uploaded and the recording time == 555 555 556 556 ... ... @@ -559,11 +559,9 @@ 559 559 * (% style="color:blue" %)**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) 560 560 * (% style="color:blue" %)**AT+NOUD=8** (%%) ~/~/ The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded. 561 561 562 - The diagram below explains the relationship between TR, NOUD, and TDC more clearly**:** 563 563 564 - [[image:image-20221009000933-1.png||height="750"width="1043"]]579 +This link explains the relationship between TR, NOUD and TDC more clearly** : **[[https:~~/~~/www.processon.com/view/link/6340e606e401fd390891af87>>url:https://www.processon.com/view/link/6340e606e401fd390891af87]] 565 565 566 - 567 567 == 2.10 Read or Clear cached data == 568 568 569 569 ... ... @@ -572,9 +572,11 @@ 572 572 * (% style="color:blue" %)**AT+CDP** (%%) ~/~/ Read cached data 573 573 * (% style="color:blue" %)**AT+CDP=0** (%%) ~/~/ Clear cached data 574 574 589 + 575 575 [[image:image-20220907154700-19.png]] 576 576 577 577 593 + 578 578 == 2.11 Calibration == 579 579 580 580 ... ... @@ -586,6 +586,7 @@ 586 586 [[image:image-20220907154700-20.png]] 587 587 588 588 605 + 589 589 == 2.12 Firmware Change Log == 590 590 591 591 ... ... @@ -594,14 +594,64 @@ 594 594 Upgrade Instruction: [[Upgrade Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]] 595 595 596 596 597 -== 2.13 Battery & Power Consumption == 598 598 615 +== 2.13 Battery Analysis == 599 599 600 -NSPH01 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace. 601 601 602 - [[**BatteryInfo & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]].618 +=== 2.13.1 Battery Type === 603 603 604 604 621 +The NSPH01 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. 622 + 623 +The battery is designed to last for several years depends on the actually use environment and update interval. 624 + 625 +The battery-related documents as below: 626 + 627 +* [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]] 628 +* [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]] 629 +* [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]] 630 + 631 +[[image:image-20220907154700-21.png]] 632 + 633 + 634 + 635 +=== 2.13.2 Power consumption Analyze === 636 + 637 + 638 +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. 639 + 640 +Instruction to use as below: 641 + 642 +(% 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/]] 643 + 644 +(% style="color:blue" %)**Step 2: **(%%) Open it and choose 645 + 646 +* Product Model 647 +* Uplink Interval 648 +* Working Mode 649 + 650 +And the Life expectation in difference case will be shown on the right. 651 + 652 + 653 +[[image:image-20220907154700-22.jpeg]] 654 + 655 + 656 + 657 + 658 +=== 2.13.3 Battery Note === 659 + 660 + 661 +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. 662 + 663 + 664 + 665 +=== 2.13.4 Replace the battery === 666 + 667 + 668 +The default battery pack of NSPH01 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). 669 + 670 + 671 + 605 605 = 3. Access NB-IoT Module = 606 606 607 607 ... ... @@ -614,8 +614,10 @@ 614 614 615 615 616 616 684 + 617 617 = 4. Using the AT Commands = 618 618 687 + 619 619 == 4.1 Access AT Commands == 620 620 621 621 ... ... @@ -705,8 +705,10 @@ 705 705 AT+PWORD : Serial Access Password 706 706 707 707 777 + 708 708 = 5. FAQ = 709 709 780 + 710 710 == 5.1 How to Upgrade Firmware == 711 711 712 712 ... ... @@ -717,6 +717,7 @@ 717 717 (% style="color:red" %)**Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.** 718 718 719 719 791 + 720 720 == 5.2 Can I calibrate NSPH01 to different soil types? == 721 721 722 722 ... ... @@ -723,8 +723,10 @@ 723 723 NSPH01 is calibrated for saline-alkali soil and loamy soil. If users want to use it for other soil, they can calibrate the value in the IoT platform base on the value measured by saline-alkali soil and loamy soil. The formula can be found at [[this link>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/LSE01/Calibrate_to_other_Soil_20220605.pdf]]. 724 724 725 725 798 + 726 726 = 6. Trouble Shooting = 727 727 801 + 728 728 == 6.1 Connection problem when uploading firmware == 729 729 730 730 ... ... @@ -731,6 +731,7 @@ 731 731 **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]] 732 732 733 733 808 + 734 734 == 6.2 AT Command input doesn't work == 735 735 736 736 ... ... @@ -737,12 +737,7 @@ 737 737 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. 738 738 739 739 740 -== 6.3 Not able to connect to NB-IoT network and keep showing "Signal Strength:99". == 741 741 742 - 743 -This means sensor is trying to join the NB-IoT network but fail. Please see this link for **//[[trouble shooting for signal strenght:99>>doc:Main.CSQ\:99,99.WebHome]]//**. 744 - 745 - 746 746 = 7. Order Info = 747 747 748 748 ... ... @@ -749,6 +749,7 @@ 749 749 Part Number**:** NSPH01 750 750 751 751 822 + 752 752 = 8. Packing Info = 753 753 754 754 ... ... @@ -765,6 +765,7 @@ 765 765 * Weight / pcs : g 766 766 767 767 839 + 768 768 = 9. Support = 769 769 770 770
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