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70	70	= 1. Introduction =
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72	72	== 1.1 ​What is LoRaWAN Soil pH Sensor ==
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75	75	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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79	79	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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83	83	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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87	87	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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91	91	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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95	95	[[image:1654592435432-887.png]]
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113	113	* 8500mAh Battery for long term use
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116	116	== 1.3 Probe Specification ==
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134	134	* Length: 3.5 meters
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137	137	== 1.4 ​Applications ==
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139	139	* Smart Agriculture
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142	142	== 1.5 Pin mapping and power on ==
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144	144	[[image:1654592472094-134.png]]
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217	217	[[image:image-20220607170442-2.png]]
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221	221	(% 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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224	224	[[image:1654592697690-910.png]]
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228	228	== 2.3 ​Uplink Payload ==
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231	231	LSPH01 will uplink payload via LoRaWAN with below payload format:
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235	235	Uplink payload includes in total 11 bytes.
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239	239	Normal uplink payload:
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242	242	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
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321	321
322	322	=== 2.3.6 Message Type ===
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325	325	For a normal uplink payload, the message type is always 0x01.
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329	329	Valid Message Type:
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333	333	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
334		-|=**Message Type Code**|=**Description**|=**Payload**
	316	+|**Message Type Code**|**Description**|**Payload**
335	335	|0x01|Normal Uplink|[[Normal Uplink Payload>>path:#H2.3200BUplinkPayload]]
336	336	|0x02|Reply configures info|[[Configure Info Payload>>path:#H3.4GetFirmwareVersionInfo]]
337	337	|0x03|Reply Calibration Info|[[Calibration Payload>>path:#H2.7Calibration]]
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341	341	=== 2.3.7 Decode payload in The Things Network ===
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343	343	While using TTN network, you can add the payload format to decode the payload.
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364	364	== 2.5 ​Show Data in DataCake IoT Server ==
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367	367	[[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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375	375	(% 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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379	379	(% 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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383	383	[[image:1654592790040-760.png]]
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400	400	[[image:1654592856403-259.png]]
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404	404	(% style="color:blue" %)**Step 5**(%%)**: add payload decode**
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408	408	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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412	412	[[image:1654592878525-845.png]]
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429	429	=== 2.6.1 Before measurement ===
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433	433	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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439	439	=== 2.6.2 Measurement ===
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443	443	(% style="color:#4f81bd" %)**Measurement the soil surface:**
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447	447	[[image:1654592946732-634.png]]
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451	451	Choose the proper measuring position. Split the surface soil according to the measured deep.
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455	455	Put pure water, or rainwater to make the soil of measurement point to moist mud. Remove rocks or hard things.
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459	459	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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463	463	Put soil over the probe after insert. And start to measure.
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471	471	(% style="color:#4f81bd" %)**Measurement inside soil:**
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475	475	Dig a hole with diameter > 20CM.
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479	479	Insert the probe inside, method like measure the surface.
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508	508	== 2.7 Calibration ==
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511	511	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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515	515	After stable, user can use below command to calibrate.
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518	518	[[image:image-20220607171149-4.png]]
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521	521	(% style="color:#037691" %)**Calibration Payload**
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523		-(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
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525	525	**Size**
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553	553	== 2.8 Frequency Plans ==
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605	605	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
606	606	* 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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608	608	=== 2.8.3 CN470-510 (CN470) ===
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610	610	Used in China, Default use CHE=1
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672	672	* 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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675	675	=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
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677	677	(% style="color:blue" %)**Default Uplink channel:**
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787	787	* Blink once when device transmit a packet.
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790	790	== 2.10 ​Firmware Change Log ==
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848	848	== 3.2 Set Interrupt Mode ==
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850	850	Feature, Set Interrupt mode for GPIO_EXIT.
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863	863	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
864	864	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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866	866	== 3.3 Calibrate Sensor ==
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868	868	Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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880	880	* Reply to the confirmation package: 26 01
881	881	* Reply to non-confirmed packet: 26 00
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883	883	Device will send an uplink after got this downlink command. With below payload:
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885	885	Configures info payload:
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1102	1102	* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1103	1103	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
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1105	1105	= 9. ​Packing Info =
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1116	1116	* Package Size / pcs : cm
1117	1117	* Weight / pcs : g
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1119	1119	= 10. ​Support =
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1121	1121	* 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.