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74	74	= How to use? =
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77	77	== Connect to GroPoint Profile ==
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79	79	GroPoint Air must be used with [[GroPoint Profile>>https://www.gropoint.com/products/soil-sensors/gropoint-profile]]. There are different interface model from GroPoint, users need to choose the one:
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139	139	== Uplink Payload Analyze ==
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	140	+Uplink payloads have two types:
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	142	+* (((
	143	+Report temperature and humidity status normally: Use FPORT=2
	144	+)))
	145	+* (((
	146	+Other control commands: Use other FPORT fields.
	147	+)))
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	149	+The application server should parse the correct value based on FPORT settings.
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	151	+
	152	+== temperature and humidity Value, Uplink FPORT~=2 ==
	153	+
	154	+
	155	+GroPoint Air will send this uplink after Device Status once join the LoRaWAN network successfully. And GroPoint Air will:
	156	+
	157	+periodically send this uplink every 20 minutes, this interval can be changed.
	158	+
	159	+The drawing below shows the probe dimensions of the 2-8 segment probes, Temperature sen sor locations provided in table below:
	160	+
	161	+[[image:image-20220621093414-1.png||height="932" width="816"]]
	162	+
	163	+GroPoint Air's sensors come in six models:GPLP-2，GPLP-3，GPLP-4，GPLP-5，GPLP-6，GPLP-8.
	164	+
	165	+The amount of temperature and humidity is different for each model, so the payload of each model is different.
	166	+
	167	+Take GPLP-3 as an example：
	168	+
	169	+Uplink Payload totals 21 bytes.
	170	+
	171	+[[image:image-20220621100751-2.png||height="124" width="774"]]
	172	+
	173	+[[image:image-20220611174943-1.png||height="139" width="1008"]]
	174	+
	175	+
144	144	== Show data on Datacake ==
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146	146	Datacake IoT platform provides a human-friendly interface to show the sensor data, once we have sensor data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps: