Wiki source code of NSPH01-NB-IoT Soil pH Sensor User Manual

Version 55.1 by Edwin Chen on 2022/10/09 00:09

version	line-number	content
3.1	1	(% style="text-align:center" %)
50.2	2	[[image:)YK]Y_LZJIO]J2~~VA}OQJM2.png\|\|height="442" width="410"]]
10.1	3
44.3	4	Table of Contents:
44.2	5
	6	{{toc/}}
	7
	8
	9
50.3	10	= 1. Introduction =
10.1	11
50.2	12
50.3	13	== 1.1 What is NSPH01 Soil pH Sensor ==
10.1	14
	15
50.3	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.
10.1	17
50.3	18	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.
50.2	19
10.1	20	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.
50.3	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.
10.1	24
50.3	25
34.1	26	[[image:image-20220907153151-1.png]]
	27
50.3	28
34.1	29	[[image:M_K`YF9`CAYAE\@}3T]FHT$9.png]]
	30
	31
50.3	32
	33	== 1.2 Features ==
	34
	35
34.1	36	* NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
	37	* Monitor soil pH with temperature compensation.
	38	* Monitor soil temperature
46.1	39	* pH and Temperature alarm function
34.1	40	* Monitor Battery Level
	41	* Support pH calibration by end user
	42	* Uplink on periodically
	43	* Downlink to change configure
	44	* IP66 Waterproof Enclosure
	45	* IP68 rate for the Sensor Probe
	46	* Ultra-Low Power consumption
	47	* AT Commands to change parameters
46.1	48	* Micro SIM card slot
34.1	49	* 8500mAh Battery for long term use
	50
44.1	51	== 1.3 Specification ==
34.1	52
	53
50.3	54	(% style="color:#037691" %)Common DC Characteristics:
	55
34.1	56	* Supply Voltage: 2.1v ~~ 3.6v
	57	* Operating Temperature: -40 ~~ 85°C
	58
50.3	59	(% style="color:#037691" %)NB-IoT Spec:
	60
34.1	61	* - B1 @H-FDD: 2100MHz
	62	* - B3 @H-FDD: 1800MHz
	63	* - B8 @H-FDD: 900MHz
	64	* - B5 @H-FDD: 850MHz
	65	* - B20 @H-FDD: 800MHz
	66	* - B28 @H-FDD: 700MHz
	67
50.3	68	== 1.4 Probe Specification ==
	69
	70
	71	(% style="color:#037691" %)Soil pH:
	72
34.1	73	* Range: 3 ~~ 10 pH
	74	* Resolution: 0.01 pH
	75	* Accuracy: ±2% under (0~~50 ℃, Accuracy will poor under 0 due to frozen)
	76	* Temperature Compensation Range: 0 ~~ 50℃
	77	* IP68 Protection
	78	* Length: 3.5 meters
	79
50.3	80	(% style="color:#037691" %)Soil Temperature:
	81
34.1	82	* Range -40℃～85℃
	83	* Resolution: 0.1℃
	84	* Accuracy: <±0.5℃(-10℃～40℃)，<±0.8℃ (others)
	85	* IP68 Protection
	86	* Length: 3.5 meters
	87
51.10	88	== 1.5 Applications ==
	89
	90
34.1	91	* Smart Agriculture
	92
51.10	93	== 1.6 Pin mapping and power on ==
	94
	95
34.1	96	[[image:image-20220907153300-2.png]]
	97
	98
50.3	99
44.1	100	= 2. Use NSPH01 to communicate with IoT Server =
34.1	101
50.3	102
44.1	103	== 2.1 How it works ==
34.1	104
50.3	105
34.1	106	The NSPH01 is equipped with a NB-IoT module, the pre-loaded firmware in NSPH01 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 NSPH01.
	107
	108	The diagram below shows the working flow in default firmware of NSPH01:
	109
50.3	110
34.1	111	[[image:image-20220907153416-3.png]]
	112
50.3	113
	114
44.1	115	== 2.2 Configure the NSPH01 ==
34.1	116
50.3	117
44.1	118	=== 2.2.1 Test Requirement ===
34.1	119
50.3	120
46.1	121	To use NSPH01 in the field, make sure meet below requirements:
34.1	122
	123	* Your local operator has already distributed a NB-IoT Network there.
	124	* The local NB-IoT network used the band that NSPH01 supports.
	125	* Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
	126
52.2	127	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.
	128
	129
34.1	130	[[image:image-20220907153445-4.png]]
	131
	132
50.3	133
44.1	134	=== 2.2.2 Insert SIM card ===
34.1	135
50.3	136
47.1	137	User need to take out the NB-IoT module and insert the SIM card like below. ((% style="color:red" %) Pay attention to the direction(%%))
34.1	138
51.11	139
34.1	140	[[image:image-20220907153505-5.png]]
	141
50.3	142
	143
44.1	144	=== 2.2.3 Connect USB – TTL to NSPH01 to configure it ===
34.1	145
	146
51.2	147	User need to configure NSPH01 via serial port to set the (% style="color:blue" %)Server Address / Uplink Topic(%%) to define where and how-to uplink packets. NSPH01 support AT Commands, user can use a USB to TTL adapter to connect to NSPH01 and use AT Commands to configure it, as below.
34.1	148
	149
51.2	150	(% style="color:blue" %)Connection:
34.1	151
51.2	152	~ (% style="background-color:yellow" %) USB TTL GND <~-~-~-~-> GND(%%)
34.1	153
51.2	154	~ (% style="background-color:yellow" %) USB TTL TXD <~-~-~-~-> UART_RXD(%%)
	155
	156	~ (% style="background-color:yellow" %) USB TTL RXD <~-~-~-~-> UART_TXD(%%)
	157
	158
34.1	159	In the PC, use below serial tool settings:
	160
51.2	161	* Baud: (% style="color:green" %)9600
	162	* Data bits: (% style="color:green" %)8(%%)
	163	* Stop bits: (% style="color:green" %)1
	164	* Parity: (% style="color:green" %)None
	165	* Flow Control: (% style="color:green" %)None
34.1	166
51.2	167	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.
34.1	168
	169
51.2	170	[[image:image-20220912144017-1.png]]
34.1	171
51.2	172
	173	(% 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]]
	174
	175
	176
44.1	177	=== 2.2.4 Use CoAP protocol to uplink data ===
34.1	178
	179
51.2	180	(% 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/]]
34.1	181
	182
51.2	183	(% style="color:blue" %)Use below commands:
	184
	185	* (% style="color:#037691" %)AT+PRO=1 (%%) ~/~/ Set to use CoAP protocol to uplink
	186	* (% style="color:#037691" %)AT+SERVADDR=120.24.4.116,5683 (%%) ~/~/ to set CoAP server address and port
	187	* (% style="color:#037691" %)AT+URI=5,11,"mqtt",11,"coap",12,"0",15,"c=text1",23,"0" (%%) ~/~/ Set COAP resource path
	188
34.1	189	For parameter description, please refer to AT command set
	190
51.2	191
34.1	192	[[image:image-20220907153551-7.png\|\|height="502" width="740"]]
	193
	194
51.2	195	After configure the server address and (% style="color:green" %)reset the device (via AT+ATZ )(%%), NSPH01 will start to uplink sensor values to CoAP server.
	196
	197
34.1	198	[[image:image-20220907153612-8.png\|\|height="529" width="729"]]
	199
	200
51.2	201
44.1	202	=== 2.2.5 Use UDP protocol to uplink data(Default protocol) ===
34.1	203
51.2	204
34.1	205	This feature is supported since firmware version v1.0.1
	206
51.4	207	* (% style="color:blue" %)AT+PRO=2 (%%) ~/~/ Set to use UDP protocol to uplink
	208	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5601 (%%) ~/~/ to set UDP server address and port
	209	* (% style="color:blue" %)AT+CFM=1 (%%) ~/~/ If the server does not respond, this command is unnecessar
	210
34.1	211	[[image:image-20220907153643-9.png\|\|height="401" width="734"]]
	212
51.2	213
34.1	214	[[image:image-20220907153703-10.png\|\|height="309" width="738"]]
	215
	216
51.4	217
44.1	218	=== 2.2.6 Use MQTT protocol to uplink data ===
34.1	219
51.4	220
34.1	221	This feature is supported since firmware version v110
	222
51.4	223	* (% style="color:blue" %)AT+PRO=3 (%%) ~/~/ Set to use MQTT protocol to uplink
	224	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,1883 (%%) ~/~/ Set MQTT server address and port
	225	* (% style="color:blue" %)AT+CLIENT=CLIENT (%%) ~/~/ Set up the CLIENT of MQTT
	226	* (% style="color:blue" %)AT+UNAME=UNAME (%%)~/~/ Set the username of MQTT
	227	* (% style="color:blue" %)AT+PWD=PWD (%%)~/~/ Set the password of MQTT
	228	* (% style="color:blue" %)AT+PUBTOPIC=NSE01_PUB (%%)~/~/ Set the sending topic of MQTT
	229	* (% style="color:blue" %)AT+SUBTOPIC=NSE01_SUB (%%) ~/~/ Set the subscription topic of MQTT
34.1	230
	231	[[image:image-20220907153739-11.png\|\|height="491" width="764"]]
	232
51.3	233
34.1	234	[[image:image-20220907153751-12.png\|\|height="555" width="769"]]
	235
51.4	236
34.1	237	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.
	238
51.3	239
	240
	241
44.1	242	=== 2.2.7 Use TCP protocol to uplink data ===
34.1	243
51.4	244
34.1	245	This feature is supported since firmware version v110
	246
51.4	247	* (% style="color:blue" %)AT+PRO=4 (%%) ~/~/ Set to use TCP protocol to uplink
	248	* (% style="color:blue" %)AT+SERVADDR=120.24.4.116,5600 (%%) ~/~/ to set TCP server address and port
34.1	249
	250	[[image:image-20220907153818-13.png\|\|height="486" width="668"]]
	251
51.3	252
34.1	253	[[image:image-20220907153827-14.png\|\|height="236" width="684"]]
	254
51.3	255
	256
44.1	257	=== 2.2.8 Change Update Interval ===
34.1	258
51.5	259
47.1	260	Users can use the below command to change the uplink interval.
34.1	261
51.4	262	* (% style="color:blue" %)AT+TDC=7200 (%%) ~/~/ Set Update Interval to 7200s (2 hour)
34.1	263
51.4	264	(% 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).
34.1	265
47.1	266
51.5	267
44.1	268	== 2.3 Uplink Payload ==
34.1	269
51.5	270
34.1	271	In this mode, uplink payload includes 87 bytes in total by default.
	272
	273	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.
	274
51.5	275	(% border="2" style="background-color:#ffffcc; color:green; width:1160px" %)
	276	\|(% 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
	277	\|(% 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 .....
44.1	278
34.1	279	If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
	280
	281	[[image:image-20220907153902-15.png\|\|height="581" width="804"]]
	282
	283
52.2	284	(((
34.1	285	The payload is ASCII string, representative same HEX:
52.2	286	)))
34.1	287
52.2	288	(((
	289
	290	)))
34.1	291
52.2	292	(((
	293	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__//(%%)
	294	)))
34.1	295
52.2	296	(((
	297
51.10	298
52.2	299	where:
	300	)))
51.10	301
52.2	302	* Device ID: 0xf868411056754138 = f868411056754138
	303	* Version: 0x0064=100=1.0.0
	304	* BAT: 0x0c78 = 3192 mV = 3.192V
	305	* Singal: 0x17 = 23
	306	* Mod: 0x01 = 1
	307	* Interrupt: 0x00= 0
	308	* Soil PH: 0x0225= 549 = 5.49
	309	* Soil Temperature: 0x010b =267=26.7 °C
	310	* Time stamp : 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
	311	* Soil Temperature,Soil PH,Time stamp : 010b0226631550fb
	312	* 8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,.......
	313
	314
44.1	315	== 2.4 Payload Explanation and Sensor Interface ==
34.1	316
51.5	317
44.1	318	=== 2.4.1 Device ID ===
34.1	319
51.5	320
34.1	321	By default, the Device ID equal to the last 15 bits of IMEI.
	322
51.4	323	User can use (% style="color:blue" %)AT+DEUI (%%)to set Device ID
34.1	324
51.5	325
34.1	326	Example:
	327
	328	AT+DEUI=868411056754138
	329
	330	The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
	331
51.5	332
	333
44.1	334	=== 2.4.2 Version Info ===
34.1	335
51.5	336
34.1	337	Specify the software version: 0x64=100, means firmware version 1.00.
	338
	339	For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
	340
51.5	341
	342
44.1	343	=== 2.4.3 Battery Info ===
34.1	344
51.5	345
34.1	346	Check the battery voltage for NSPH01.
	347
	348	Ex1: 0x0B45 = 2885mV
	349
	350	Ex2: 0x0B49 = 2889mV
	351
51.5	352
	353
44.1	354	=== 2.4.4 Signal Strength ===
34.1	355
51.5	356
34.1	357	NB-IoT Network signal Strength.
	358
	359	Ex1: 0x1d = 29
	360
	361	0 -113dBm or less
	362
	363	1 -111dBm
	364
	365	2...30 -109dBm... -53dBm
	366
	367	31 -51dBm or greater
	368
	369	99 Not known or not detectable
	370
51.5	371
	372
44.1	373	=== 2.4.5 Soil PH ===
34.1	374
51.5	375
34.1	376	Get the PH content of the soil. The value range of the register is 300-1000(Decimal), divide this value by 100 to get the percentage of PH in the soil.
	377
51.9	378	For example, if the data you get from the register is (% style="color:blue" %)__0x05 0xDC__(%%), the PH content in the soil is
34.1	379
51.9	380	(% style="color:blue" %)0229(H) = 549(D) /100 = 5.49.
34.1	381
51.5	382
	383
44.1	384	=== 2.4.6 Soil Temperature ===
34.1	385
51.5	386
51.9	387	Get the temperature in the soil. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the soil. For example, if the data you get from the register is (% style="color:blue" %)__0x09 0xEC__(%%), the temperature content in the soil is
34.1	388
51.9	389
34.1	390	Example:
	391
40.1	392	If payload is 0105H: ((0x0105 & 0x8000)>>15 === 0),temp = 0105(H)/10 = 26.1 °C
34.1	393
40.1	394	If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
34.1	395
51.5	396
	397
44.1	398	=== 2.4.7 Timestamp ===
34.1	399
51.5	400
34.1	401	Time stamp : 0x6315537b =1662342011
	402
	403	Convert Unix timestamp to time 2022-9-5 9:40:11.
	404
51.5	405
	406
44.1	407	=== 2.4.8 Digital Interrupt ===
34.1	408
	409
51.5	410	Digital Interrupt refers to pin (% style="color:blue" %)GPIO_EXTI(%%), and there are different trigger methods. When there is a trigger, the NSPH01 will send a packet to the server.
	411
34.1	412	The command is:
	413
51.5	414	(% 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]]).
34.1	415
	416	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.
	417
	418
51.9	419	Example:
	420
34.1	421	0x(00): Normal uplink packet.
	422
	423	0x(01): Interrupt Uplink Packet.
	424
51.5	425
	426
44.1	427	=== 2.4.9 +5V Output ===
34.1	428
51.5	429
34.1	430	NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
	431
	432	The 5V output time can be controlled by AT Command.
	433
51.5	434	(% style="color:blue" %)AT+5VT=1000
34.1	435
	436	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	437
	438
51.5	439
44.1	440	== 2.5 Downlink Payload ==
34.1	441
51.5	442
41.1	443	By default, NSPH01 prints the downlink payload to console port.
34.1	444
37.1	445	[[image:image-20220907154636-17.png]]
34.1	446
	447
51.5	448	(% style="color:blue" %)Examples:
34.1	449
51.5	450	* (% style="color:#037691" %) Set TDC
34.1	451
	452	If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01.
	453
	454	Payload: 01 00 00 1E TDC=30S
	455
	456	Payload: 01 00 00 3C TDC=60S
	457
51.5	458	* (% style="color:#037691" %) Reset
34.1	459
42.1	460	If payload = 0x04FF, it will reset the NSPH01
34.1	461
51.5	462	* (% style="color:#037691" %) INTMOD
34.1	463
	464	Downlink Payload: 06000003, Set AT+INTMOD=3
	465
51.5	466
	467
44.1	468	== 2.6 LED Indicator ==
34.1	469
51.5	470
34.1	471	The NSPH01 has an internal LED which is to show the status of different state.
	472
	473	* When power on, NSPH01 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe)
	474	* Then the LED will be on for 1 second means device is boot normally.
	475	* After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
	476	* For each uplink probe, LED will be on for 500ms.
	477
	478
51.5	479	== 2.7 Installation and Maintain ==
	480
	481
	482	=== 2.7.1 Before measurement ===
	483
	484
34.1	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
	487
51.5	488
	489	=== 2.7.2 Measurement ===
	490
	491
51.7	492	(% style="color:#037691" %)Measurement the soil surface:
34.1	493
51.5	494
34.1	495	[[image:image-20220907154700-18.png]]
	496
	497	Choose the proper measuring position. Split the surface soil according to the measured deep.
	498
	499	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
	500
	501	Slowly insert the probe to the measure point. Don't use large force which will break the probe. Make sure not shake when inserting.
	502
	503	Put soil over the probe after insert. And start to measure.
	504
51.5	505
51.7	506	(% style="color:#037691" %)Measurement inside soil:
34.1	507
	508	Dig a hole with diameter > 20CM.
	509
	510	Insert the probe inside, method like measure the surface.
	511
	512
51.5	513
	514	=== 2.7.3 Maintain Probe ===
	515
	516
34.1	517	1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
	518	1. After long time use (3~~ 6 months). The probe electrode needs to be clean; user can use high grade sandpaper to polish it or put in 5% hydrochloric acid for several minutes. After the metal probe looks like new, user can use pure water to wash it.
	519	1. Probe reference electrode is also no strong, need to avoid strong force or hitting.
	520	1. User should keep reference electrode wet while not use.
	521	1. Avoid the probes to touch oily matter. Which will cause issue in accuracy.
	522	1. The probe is IP68 can be put in water.
	523
51.10	524
51.5	525	== 2.8 PH and Temperature alarm function ==
	526
	527
51.7	528	(% style="color:#037691" %)➢ AT Command:
51.5	529
51.7	530	(% style="color:blue" %)AT+ PHALARM=min,max
51.5	531
34.1	532	² When min=3, and max≠0, Alarm higher than max
	533
	534	² When min≠0, and max=0, Alarm lower than min
	535
	536	² When min≠0 and max≠0, Alarm higher than max or lower than min
	537
	538
51.7	539	(% style="color:blue" %)Example:
34.1	540
51.5	541	AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
	542
34.1	543	AT+ TEMPALARM=min,max
	544
	545	² When min=0, and max≠0, Alarm higher than max
	546
	547	² When min≠0, and max=0, Alarm lower than min
	548
	549	² When min≠0 and max≠0, Alarm higher than max or lower than min
	550
	551
51.7	552	(% style="color:blue" %)Example:
34.1	553
51.5	554	AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
34.1	555
51.5	556
	557
51.7	558	== 2.9 Set the number of data to be uploaded and the recording time ==
34.1	559
	560
51.7	561	(% style="color:#037691" %)➢ AT Command:
34.1	562
51.7	563	* (% 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)
	564	* (% 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.
34.1	565
54.1	566	The diagram below explains the relationship between TR, NOUD, and TDC more clearly:
47.1	567
54.1	568	[[image:image-20221009000513-1.png\|\|height="732" width="1018"]]
51.5	569
54.1	570
	571
51.7	572	== 2.10 Read or Clear cached data ==
34.1	573
	574
51.7	575	(% style="color:#037691" %)➢ AT Command:
51.5	576
51.7	577	* (% style="color:blue" %)AT+CDP (%%) ~/~/ Read cached data
51.9	578	* (% style="color:blue" %)AT+CDP=0 (%%) ~/~/ Clear cached data
51.5	579
34.1	580	[[image:image-20220907154700-19.png]]
	581
	582
	583
51.5	584	== 2.11 Calibration ==
34.1	585
	586
	587	User can do calibration for the probe. It is limited to use below pH buffer solution to calibrate: 4.00, 6.86, 9.18. When calibration, user need to clean the electrode and put the probe in the pH buffer solution to wait the value stable ( a new clean electrode might need max 24 hours to be stable).
	588
	589	After stable, user can use below command to calibrate.
	590
51.5	591
34.1	592	[[image:image-20220907154700-20.png]]
	593
51.5	594
	595
44.1	596	== 2.12 Firmware Change Log ==
34.1	597
51.5	598
51.11	599	Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1tv07fro2pvjqj8/AAD-2wbfGfluTZfh38fQqdA_a?dl=0>>https://www.dropbox.com/sh/1tv07fro2pvjqj8/AAD-2wbfGfluTZfh38fQqdA_a?dl=0]]
34.1	600
51.7	601	Upgrade Instruction: [[Upgrade Firmware>>\|\|anchor="H5.1200BHowtoUpgradeFirmware"]]
34.1	602
51.5	603
	604
44.1	605	== 2.13 Battery Analysis ==
34.1	606
51.5	607
44.1	608	=== 2.13.1 Battery Type ===
34.1	609
51.5	610
34.1	611	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.
	612
	613	The battery is designed to last for several years depends on the actually use environment and update interval.
	614
47.1	615	The battery-related documents as below:
34.1	616
	617	* [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	618	* [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	619	* [[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
	620
	621	[[image:image-20220907154700-21.png]]
	622
51.5	623
	624
44.1	625	=== 2.13.2 Power consumption Analyze ===
34.1	626
51.5	627
34.1	628	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.
	629
	630	Instruction to use as below:
	631
51.7	632	(% 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/]]
34.1	633
51.8	634	(% style="color:blue" %)Step 2: (%%) Open it and choose
34.1	635
	636	* Product Model
	637	* Uplink Interval
	638	* Working Mode
	639
	640	And the Life expectation in difference case will be shown on the right.
	641
51.6	642
34.1	643	[[image:image-20220907154700-22.jpeg]]
	644
	645
	646
51.5	647
44.1	648	=== 2.13.3 Battery Note ===
34.1	649
51.5	650
34.1	651	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.
	652
51.5	653
	654
44.1	655	=== 2.13.4 Replace the battery ===
34.1	656
51.5	657
34.1	658	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).
	659
51.5	660
	661
44.1	662	= 3. Access NB-IoT Module =
34.1	663
51.5	664
34.1	665	Users can directly access the AT command set of the NB-IoT module.
	666
	667	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/]]
	668
51.5	669
34.1	670	[[image:image-20220907154700-23.png]]
	671
	672
	673
51.5	674
44.1	675	= 4. Using the AT Commands =
34.1	676
51.5	677
44.1	678	== 4.1 Access AT Commands ==
34.1	679
51.5	680
34.1	681	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]]
	682
	683	AT+<CMD>? : Help on <CMD>
	684
	685	AT+<CMD> : Run <CMD>
	686
	687	AT+<CMD>=<value> : Set the value
	688
	689	AT+<CMD>=? : Get the value
	690
51.5	691
51.7	692	(% style="color:#037691" %)General Commands
34.1	693
	694	AT : Attention
	695
	696	AT? : Short Help
	697
	698	ATZ : MCU Reset
	699
	700	AT+TDC : Application Data Transmission Interval
	701
	702	AT+CFG : Print all configurations
	703
	704	AT+CFGMOD : Working mode selection
	705
	706	AT+INTMOD : Set the trigger interrupt mode
	707
	708	AT+5VT : Set extend the time of 5V power
	709
	710	AT+PRO : Choose agreement
	711
	712	AT+RXDL : Extend the sending and receiving time
	713
	714	AT+SERVADDR : Server Address
	715
	716	AT+TR : Get or Set record time"
	717
50.1	718	AT+APN : Get or set the APN
34.1	719
50.1	720	AT+FBAND : Get or Set whether to automatically modify the frequency band
	721
	722	AT+DNSCFG : Get or Set DNS Server
	723
	724	AT+GETSENSORVALUE : Returns the current sensor measurement
	725
34.1	726	AT+NOUD : Get or Set the number of data to be uploaded
	727
	728	AT+CDP : Read or Clear cached data
	729
	730	AT+TEMPALARM : Get or Set alarm of temp
	731
	732	AT+PHALARM : Get or Set alarm of PH
	733
	734	AT+ PHCAL : calibrate PH value
	735
	736
51.7	737	(% style="color:#037691" %)COAP Management
34.1	738
	739	AT+URI : Resource parameters
	740
51.5	741
51.7	742	(% style="color:#037691" %)UDP Management
34.1	743
	744	AT+CFM : Upload confirmation mode (only valid for UDP)
	745
51.5	746
51.7	747	(% style="color:#037691" %)MQTT Management
34.1	748
	749	AT+CLIENT : Get or Set MQTT client
	750
	751	AT+UNAME : Get or Set MQTT Username
	752
	753	AT+PWD : Get or Set MQTT password
	754
	755	AT+PUBTOPIC : Get or Set MQTT publish topic
	756
	757	AT+SUBTOPIC : Get or Set MQTT subscription topic
	758
51.5	759
51.7	760	(% style="color:#037691" %)Information
34.1	761
	762	AT+FDR : Factory Data Reset
	763
	764	AT+PWORD : Serial Access Password
	765
51.5	766
	767
44.1	768	= 5. FAQ =
34.1	769
51.5	770
44.1	771	== 5.1 How to Upgrade Firmware ==
34.1	772
51.5	773
34.1	774	User can upgrade the firmware for 1) bug fix, 2) new feature release.
	775
	776	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]]
	777
51.8	778	(% style="color:red" %)Notice, NSPH01 and LSPH01 share the same mother board. They use the same connection and method to update.
34.1	779
51.5	780
	781
44.1	782	== 5.2 Can I calibrate NSPH01 to different soil types? ==
34.1	783
51.5	784
34.1	785	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]].
	786
51.5	787
	788
44.1	789	= 6. Trouble Shooting =
34.1	790
51.5	791
44.1	792	== 6.1 Connection problem when uploading firmware ==
34.1	793
51.5	794
34.1	795	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]]
	796
51.5	797
	798
44.1	799	== 6.2 AT Command input doesn't work ==
34.1	800
	801
51.7	802	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.
51.5	803
	804
	805
44.1	806	= 7. Order Info =
34.1	807
51.5	808
34.1	809	Part Number: NSPH01
	810
51.5	811
	812
44.1	813	= 8. Packing Info =
34.1	814
51.5	815
34.1	816	Package Includes:
	817
47.1	818	* NSPH01 NB-IoT pH Sensor x 1
34.1	819	* External antenna x 1
	820
	821	Dimension and weight:
	822
51.10	823	* Device Size: cm
	824	* Device Weight: g
	825	* Package Size / pcs : cm
	826	* Weight / pcs : g
34.1	827
51.10	828
44.1	829	= 9. Support =
34.1	830
51.5	831
34.1	832	* 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.
	833	* 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]]
	834
	835

Wiki source code of NSPH01-NB-IoT Soil pH Sensor User Manual

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