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71	71	= 1. Introduction =
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73	73	== 1.1 ​What is LoRaWAN Soil pH Sensor ==
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76	76	The Dragino LSPH01 is a (% style="color:#4f81bd" %)**LoRaWAN 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.
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80	80	LSPH01 probe is made by Solid AgCl reference electrode and Pure metal pH sensitive electrode. It can detect soil's** (% style="color:#4f81bd" %)pH (%%)**with high accuracy and stable value. The LSPH01 probe can be buried into soil for long time use.
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84	84	The LoRa wireless technology used in LSPH01 allows device 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.
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88	88	LSPH01 is powered by (% style="color:#4f81bd" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
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92	92	Each LSPH01 is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
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96	96	[[image:1654592435432-887.png]]
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114	114	* 8500mAh Battery for long term use
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118	118	== 1.3 Probe Specification ==
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136	136	* Length: 3.5 meters
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140	140	== 1.4 ​Applications ==
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142	142	* Smart Agriculture
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146	146	== 1.5 Pin mapping and power on ==
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148	148	[[image:1654592472094-134.png]]
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221	221	[[image:image-20220607170442-2.png]]
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225	225	(% style="color:blue" %)**Step 3**(%%)**:** The LSPH01 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
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228	228	[[image:1654592697690-910.png]]
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232	232	== 2.3 ​Uplink Payload ==
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235	235	LSPH01 will uplink payload via LoRaWAN with below payload format:
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239	239	Uplink payload includes in total 11 bytes.
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243	243	Normal uplink payload:
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246	246	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
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326	326	=== 2.3.6 Message Type ===
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329	329	For a normal uplink payload, the message type is always 0x01.
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333	333	Valid Message Type:
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337	337	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
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345		-
346	346	=== 2.3.7 Decode payload in The Things Network ===
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348	348	While using TTN network, you can add the payload format to decode the payload.
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505	505	Always 0x03
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508	508	User can also send 0x14 downlink command to poll the current calibration payload.
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510	510	[[image:image-20220607171416-7.jpeg]]
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519	519	== 2.8 Frequency Plans ==
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572	572	* Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
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575	575	=== 2.8.3 CN470-510 (CN470) ===
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577	577	Used in China, Default use CHE=1
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643	643	=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
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645	645	(% style="color:blue" %)**Default Uplink channel:**
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759	759	== 2.10 ​Firmware Change Log ==
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818	818	== 3.2 Set Interrupt Mode ==
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820	820	Feature, Set Interrupt mode for GPIO_EXIT.
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834	834	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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837	837	== 3.3 Calibrate Sensor ==
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839	839	Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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1022	1022	LSPH01 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LSPH01 for using AT command, as below.
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1024		-[[image:1654593668970-604.png]]
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1026	1026	**Connection:**
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1035	1035	In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LSPH01. LSPH01 will output system info once power on as below:
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1040	1040	Valid AT Command please check [[Configure Device>>path:#H3.ConfigureLSPH01viaATCommandorLoRaWANDownlink]].
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1074	1074	* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1075	1075	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
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1078	1078	= 9. ​Packing Info =
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1089	1089	* Package Size / pcs : cm
1090	1090	* Weight / pcs : g
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1093	1093	= 10. ​Support =
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1095	1095	* 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.
1096	1096	* 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]].
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