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62	62	* [[10. ​Support>>path:#H10.A0200BSupport]]
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64	64
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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
540	540
	551	+
	552	+
541	541	== 2.8 Frequency Plans ==
542	542
543	543	(((
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734	734	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
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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	749	+
737	737	=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
738	738
739	739	(((
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958	958	* Blink once when device transmit a packet.
959	959
960	960
961		-
962	962	== 2.10 ​Firmware Change Log ==
963	963
964	964
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1031	1031
1032	1032
1033	1033
1034		-(((
1035	1035	(% style="color:#037691" %)**Downlink Command: 0x01**
1036		-)))
1037	1037
1038		-(((
1039	1039	Format: Command Code (0x01) followed by 3 bytes time value.
1040		-)))
1041	1041
1042	1042	(((
1043	1043	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1044	1044	)))
1045	1045
1046		-* (((
1047		-Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1048		-)))
1049		-* (((
1050		-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
1051	1051
1052	1052
1053		-
1054		-)))
1055	1055
1056	1056	== 3.2 Set Interrupt Mode ==
1057	1057
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1062	1062	[[image:image-20220607171716-9.png]]
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1064	1064
1065		-(((
1066	1066	(% style="color:#037691" %)**Downlink Command: 0x06**
1067		-)))
1068	1068
1069		-(((
1070	1070	Format: Command Code (0x06) followed by 3 bytes.
1071		-)))
1072	1072
1073		-(((
1074	1074	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1075		-)))
1076	1076
1077		-* (((
1078		-Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1079		-)))
1080		-* (((
1081		-Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1082		-)))
	1074	+* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1075	+* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1083	1083
1084		-(((
1085		-
1086		-)))
1087		-
1088		-
1089		-
1090	1090	== 3.3 Calibrate Sensor ==
1091	1091
1092	1092	Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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1261	1261
1262	1262	=== ​4.3.2 Replace the battery ===
1263	1263
1264		-(((
1265	1265	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.
1266		-)))
1267	1267
1268		-(((
1269	1269	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)
1270		-)))
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1288	1288	(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
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1290	1290
1291		-(((
1292	1292	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:
1293		-)))
1294	1294
1295	1295
1296	1296	[[image:1654593712276-618.png]]