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62	62	* [[10. ​Support>>path:#H10.A0200BSupport]]
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64	64
	65	+
	66	+
	67	+
	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]]
330	330
	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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540	540
541	541
542	542
543		-
544	544	== 2.8 Frequency Plans ==
545	545
546	546	(((
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738	738	* 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)
739	739
740	740
741		-
742		-
743	743	=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
744	744
745	745	(((
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964	964	* Blink once when device transmit a packet.
965	965
966	966
967		-
968	968	== 2.10 ​Firmware Change Log ==
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970	970
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1037	1037
1038	1038
1039	1039
1040		-(((
1041	1041	(% style="color:#037691" %)**Downlink Command: 0x01**
1042		-)))
1043	1043
1044		-(((
1045	1045	Format: Command Code (0x01) followed by 3 bytes time value.
1046		-)))
1047	1047
1048	1048	(((
1049	1049	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1050	1050	)))
1051	1051
1052		-* (((
1053		-Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1054		-)))
1055		-* (((
1056		-Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1054	+* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	1055	+* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1057	1057
1058	1058
1059		-
1060		-)))
1061	1061
1062	1062	== 3.2 Set Interrupt Mode ==
1063	1063
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1068	1068	[[image:image-20220607171716-9.png]]
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1070	1070
1071		-(((
1072	1072	(% style="color:#037691" %)**Downlink Command: 0x06**
1073		-)))
1074	1074
1075		-(((
1076	1076	Format: Command Code (0x06) followed by 3 bytes.
1077		-)))
1078	1078
1079		-(((
1080	1080	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1081		-)))
1082	1082
1083		-* (((
1084		-Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1085		-)))
1086		-* (((
1087		-Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1088		-)))
	1074	+* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1075	+* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1089	1089
1090		-(((
1091		-
1092		-)))
1093		-
1094		-
1095		-
1096	1096	== 3.3 Calibrate Sensor ==
1097	1097
1098	1098	Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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1267	1267
1268	1268	=== ​4.3.2 Replace the battery ===
1269	1269
1270		-(((
1271	1271	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.
1272		-)))
1273	1273
1274		-(((
1275	1275	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)
1276		-)))
1277	1277
1278	1278
1279	1279
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1294	1294	(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
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1296	1296
1297		-(((
1298	1298	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:
1299		-)))
1300	1300
1301	1301
1302	1302	[[image:1654593712276-618.png]]