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70		-
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72	72	= 1. Introduction =
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74	74	== 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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78	78	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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80	80	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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82	82	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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84	84	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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87	87	[[image:1654592435432-887.png]]
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105	105	* 8500mAh Battery for long term use
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108		-
109		-
110	110	== 1.3 Probe Specification ==
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128	128	* Length: 3.5 meters
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131		-
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133	133	== 1.4 ​Applications ==
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135	135	* Smart Agriculture
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138		-
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140	140	== 1.5 Pin mapping and power on ==
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142	142	[[image:1654592472094-134.png]]
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215	215	[[image:image-20220607170442-2.png]]
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218	218	(% 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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220	220	[[image:1654592697690-910.png]]
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223	223
224	224	== 2.3 ​Uplink Payload ==
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226	226	LSPH01 will uplink payload via LoRaWAN with below payload format:
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227	227
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228	228	Uplink payload includes in total 11 bytes.
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230	230	Normal uplink payload:
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232	232	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
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311	311
312	312	=== 2.3.6 Message Type ===
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314	314	For a normal uplink payload, the message type is always 0x01.
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315	315
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316	316	Valid Message Type:
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319	319	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
320		-|**Message Type Code**|**Description**|**Payload**
	334	+|=**Message Type Code**|=**Description**|=**Payload**
321	321	|0x01|Normal Uplink|[[Normal Uplink Payload>>path:#H2.3200BUplinkPayload]]
322	322	|0x02|Reply configures info|[[Configure Info Payload>>path:#H3.4GetFirmwareVersionInfo]]
323	323	|0x03|Reply Calibration Info|[[Calibration Payload>>path:#H2.7Calibration]]
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326	326	=== 2.3.7 Decode payload in The Things Network ===
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328	328	While using TTN network, you can add the payload format to decode the payload.
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348	348
349	349	== 2.5 ​Show Data in DataCake IoT Server ==
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351	351	[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
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354	354	(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
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356	356	(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
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359	359	[[image:1654592790040-760.png]]
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376	376	[[image:1654592856403-259.png]]
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379	379	(% style="color:blue" %)**Step 5**(%%)**: add payload decode**
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381	381	Download Datacake decoder from: [[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/LSPH01/Decoder/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSNPK01/Decoder/]]
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384	384	[[image:1654592878525-845.png]]
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401	401	=== 2.6.1 Before measurement ===
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404	404	If the LSPH01 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.
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409	409	=== 2.6.2 Measurement ===
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412	412	(% style="color:#4f81bd" %)**Measurement the soil surface:**
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414	414	[[image:1654592946732-634.png]]
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416	416	Choose the proper measuring position. Split the surface soil according to the measured deep.
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418	418	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
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420	420	Slowly insert the probe to the measure point. Don’t use large force which will break the probe. Make sure not shake when inserting.
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422	422	Put soil over the probe after insert. And start to measure.
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425	425	(% style="color:#4f81bd" %)**Measurement inside soil:**
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427	427	Dig a hole with diameter > 20CM.
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429	429	Insert the probe inside, method like measure the surface.
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456	456
457	457	== 2.7 Calibration ==
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459	459	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).
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461	461	After stable, user can use below command to calibrate.
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463	463	[[image:image-20220607171149-4.png]]
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466	466	(% style="color:#037691" %)**Calibration Payload**
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468		-(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
	523	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
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470	470	**Size**
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494	494	* Reply to non-confirmed packet: 14 00
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497	497	== 2.8 Frequency Plans ==
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549	549	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
550	550	* 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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552		-
553		-
554	554	=== 2.8.3 CN470-510 (CN470) ===
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556	556	Used in China, Default use CHE=1
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618	618	* 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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621		-
622	622	=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
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624	624	(% style="color:blue" %)**Default Uplink channel:**
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734	734	* Blink once when device transmit a packet.
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738	738	== 2.10 ​Firmware Change Log ==
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792	792	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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795	795	== 3.2 Set Interrupt Mode ==
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797	797	Feature, Set Interrupt mode for GPIO_EXIT.
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810	810	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
811	811	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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814		-
815	815	== 3.3 Calibrate Sensor ==
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817	817	Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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1051	1051	* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1052	1052	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
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1056	1056	= 9. ​Packing Info =
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1067	1067	* Package Size / pcs : cm
1068	1068	* Weight / pcs : g
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1072	1072	= 10. ​Support =
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1074	1074	* 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.