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73	73	= 1. Introduction =
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75	75	== 1.1 ​What is LoRaWAN Soil pH Sensor ==
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77	77	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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81	81	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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83	83	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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85	85	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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88	88	[[image:1654592435432-887.png]]
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210	210	[[image:image-20220607170442-2.png]]
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213	213	(% 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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215	215	[[image:1654592697690-910.png]]
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219	219	== 2.3 ​Uplink Payload ==
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221	221	LSPH01 will uplink payload via LoRaWAN with below payload format:
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223	223	Uplink payload includes in total 11 bytes.
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225	225	Normal uplink payload:
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227	227	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
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307	307	=== 2.3.6 Message Type ===
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309	309	For a normal uplink payload, the message type is always 0x01.
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311	311	Valid Message Type:
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314	314	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %)
315		-|**Message Type Code**|**Description**|**Payload**
	334	+|=**Message Type Code**|=**Description**|=**Payload**
316	316	|0x01|Normal Uplink|[[Normal Uplink Payload>>path:#H2.3200BUplinkPayload]]
317	317	|0x02|Reply configures info|[[Configure Info Payload>>path:#H3.4GetFirmwareVersionInfo]]
318	318	|0x03|Reply Calibration Info|[[Calibration Payload>>path:#H2.7Calibration]]
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345	345	== 2.5 ​Show Data in DataCake IoT Server ==
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347	347	[[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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350	350	(% 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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352	352	(% 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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355	355	[[image:1654592790040-760.png]]
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481	481	Always 0x03
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485	485	User can also send 0x14 downlink command to poll the current calibration payload.
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487	487	[[image:image-20220607171416-7.jpeg]]
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547	547	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
548	548	* 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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553	553	=== 2.8.3 CN470-510 (CN470) ===
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555	555	Used in China, Default use CHE=1
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617	617	* 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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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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739	739	== 2.10 ​Firmware Change Log ==
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812	812	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
813	813	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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818	818	== 3.3 Calibrate Sensor ==
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820	820	Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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832	832	* Reply to the confirmation package: 26 01
833	833	* Reply to non-confirmed packet: 26 00
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836	836	Device will send an uplink after got this downlink command. With below payload:
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838	838	Configures info payload:
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1055	1055	* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1056	1056	* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
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1061	1061	= 9. ​Packing Info =
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1072	1072	* Package Size / pcs : cm
1073	1073	* Weight / pcs : g
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1078	1078	= 10. ​Support =
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1080	1080	* 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.