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73	73
74	74	= How to use? =
75	75
76		-(% class="wikigeneratedid" %)
77	77	== Connect to GroPoint Profile ==
78	78
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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138	138
139	139	== Uplink Payload Analyze ==
140	140
	140	+Uplink payloads have two types:
141	141
	142	+* (((
	143	+Report temperature and humidity status normally: Use FPORT=2
	144	+)))
	145	+* (((
	146	+Other control commands: Use other FPORT fields.
	147	+)))
142	142
	149	+The application server should parse the correct value based on FPORT settings.
143	143
	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	+
	176	+For US915 frequency, when DR=0 and the payload length exceeds 11, the DR of this packet is switched to 1.
	177	+
	178	+For AU915 frequency, when DR=0 and the payload length exceeds 11, the DR of this packet is switched to 3.
	179	+
144	144	== Show data on Datacake ==
145	145
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:
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230	230
231	231	Feature: Change the sensor delay time.
232	232
	269	+There are six models of GroPoint Air, and each model returns a different number of temperature and humidity. The more bytes of the returned value, the longer the delay. The AT+SDELAY command can adjust the time that the sensor returns data to the node, and can adjust different delays according to different types of sensors.
	270	+
233	233	The default delay is 1000ms.
234	234
235	235	**AT Command: AT+SDELAY**
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245	245	* Example 1: Downlink Payload: A10003E8 ~/~/ Set the sensor delay time = 1000ms
246	246	* Example 2: Downlink Payload: A10007D0 ~/~/ Set the sensor delay time = 2000ms
247	247
248		-== 3.4 Get Firmware Version Info ==
	286	+== 3.4 Query sensor model function ==
249	249
	288	+Feature: Using this function will re-update the model.
	289	+
	290	+**Downlink Command: 0xFA00**
	291	+
	292	+
	293	+== 3.5 Get Firmware Version Info ==
	294	+
250	250	Feature: use downlink to get firmware version.
251	251
252	252	**Downlink Command: 0x26**
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433	433
434	434	In case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while pressing the send key, user need to add ENTER in their string.
435	435
	481	+== Why i see the payload is 7FFF? ==
436	436
	483	+The device will judge the length of the data received by the serial port. If the length of the received data is 0, it means that there is a problem with the sensor communication or the sensor is not connected properly, it is invalid data, and the uploaded data is 7FFF.
437	437
438	438	= Order Info =
439	439

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	1	+XWiki.David

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