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62	62	* [[10. ​Support>>path:#H10.A0200BSupport]]
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	68	+
	69	+
65	65	= 1. Introduction =
66	66
67	67	== 1.1 ​What is LoRaWAN Soil pH Sensor ==
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107	107	* IP68 rate for the Sensor Probe
108	108	* 8500mAh Battery for long term use
109	109
	115	+
110	110	== 1.3 Probe Specification ==
111	111
112	112
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127	127	* IP68 Protection
128	128	* Length: 3.5 meters
129	129
	136	+
130	130	== 1.4 ​Applications ==
131	131
132	132	* Smart Agriculture
133	133
	141	+
134	134	== 1.5 Pin mapping and power on ==
135	135
136	136	[[image:1654592472094-134.png]]
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328	328	|0x02|Reply configures info|[[Configure Info Payload>>path:#H3.4GetFirmwareVersionInfo]]
329	329	|0x03|Reply Calibration Info|[[Calibration Payload>>path:#H2.7Calibration]]
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	339	+
	340	+
331	331	=== 2.3.7 Decode payload in The Things Network ===
332	332
333	333	While using TTN network, you can add the payload format to decode the payload.
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538	538	* Reply to the confirmation package: 14 01
539	539	* Reply to non-confirmed packet: 14 00
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	552	+
541	541	== 2.8 Frequency Plans ==
542	542
543	543	(((
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735	735	* 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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737	737
738		-
739		-
740	740	=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
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742	742	(((
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961	961	* Blink once when device transmit a packet.
962	962
963	963
964		-
965	965	== 2.10 ​Firmware Change Log ==
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967	967
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1036	1036
1037		-(((
1038	1038	(% style="color:#037691" %)**Downlink Command: 0x01**
1039		-)))
1040	1040
1041		-(((
1042	1042	Format: Command Code (0x01) followed by 3 bytes time value.
1043		-)))
1044	1044
1045		-(((
1046	1046	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1047		-)))
1048	1048
1049		-* (((
1050		-Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1051		-)))
1052		-* (((
1053		-Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1052	+* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	1053	+* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1054	1054
1055	1055
1056		-
1057		-)))
1058	1058
1059	1059	== 3.2 Set Interrupt Mode ==
1060	1060
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1065	1065	[[image:image-20220607171716-9.png]]
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1067	1067
1068		-(((
1069	1069	(% style="color:#037691" %)**Downlink Command: 0x06**
1070		-)))
1071	1071
1072		-(((
1073	1073	Format: Command Code (0x06) followed by 3 bytes.
1074		-)))
1075	1075
1076		-(((
1077	1077	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1078		-)))
1079	1079
1080		-* (((
1081		-Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1082		-)))
1083		-* (((
1084		-Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1085		-)))
	1072	+* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1073	+* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1086	1086
1087		-(((
1088		-
1089		-)))
1090		-
1091		-
1092		-
1093	1093	== 3.3 Calibrate Sensor ==
1094	1094
1095	1095	Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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1264	1264
1265	1265	=== ​4.3.2 Replace the battery ===
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1267		-(((
1268	1268	You can change the battery in the LSPH01.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
1269		-)))
1270	1270
1271		-(((
1272	1272	The default battery pack of LSPH01 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
1273		-)))
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1291	1291	(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
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1294		-(((
1295	1295	In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LSPH01. LSPH01 will output system info once power on as below:
1296		-)))
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1298	1298
1299	1299	[[image:1654593712276-618.png]]