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67		-
68		-
69		-
70	70	= 1. Introduction =
71	71
72	72	== 1.1 ​What is LoRaWAN Soil pH Sensor ==
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112	112	* IP68 rate for the Sensor Probe
113	113	* 8500mAh Battery for long term use
114	114
115		-
116	116	== 1.3 Probe Specification ==
117	117
118	118
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133	133	* IP68 Protection
134	134	* Length: 3.5 meters
135	135
136		-
137	137	== 1.4 ​Applications ==
138	138
139	139	* Smart Agriculture
140	140
141		-
142	142	== 1.5 Pin mapping and power on ==
143	143
144	144	[[image:1654592472094-134.png]]
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336	336	|0x02|Reply configures info|[[Configure Info Payload>>path:#H3.4GetFirmwareVersionInfo]]
337	337	|0x03|Reply Calibration Info|[[Calibration Payload>>path:#H2.7Calibration]]
338	338
339		-
340		-
341	341	=== 2.3.7 Decode payload in The Things Network ===
342	342
343	343	While using TTN network, you can add the payload format to decode the payload.
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548	548	* Reply to the confirmation package: 14 01
549	549	* Reply to non-confirmed packet: 14 00
550	550
551		-
552		-
553	553	== 2.8 Frequency Plans ==
554	554
555	555	(((
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634	634	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
635	635	* 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)
636	636
637		-
638		-
639		-
640	640	=== 2.8.3 CN470-510 (CN470) ===
641	641
642	642	(((
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746	746	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
747	747	* 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)
748	748
749		-
750	750	=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
751	751
752	752	(((
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1043	1043
1044	1044
1045	1045
	1032	+(((
1046	1046	(% style="color:#037691" %)**Downlink Command: 0x01**
	1034	+)))
1047	1047
	1036	+(((
1048	1048	Format: Command Code (0x01) followed by 3 bytes time value.
	1038	+)))
1049	1049
	1040	+(((
1050	1050	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1042	+)))
1051	1051
1052		-* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1053		-* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1044	+* (((
	1045	+Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	1046	+)))
	1047	+* (((
	1048	+Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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	1051	+
	1052	+)))
1056	1056
1057	1057	== 3.2 Set Interrupt Mode ==
1058	1058
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1063	1063	[[image:image-20220607171716-9.png]]
1064	1064
1065	1065
	1063	+(((
1066	1066	(% style="color:#037691" %)**Downlink Command: 0x06**
	1065	+)))
1067	1067
	1067	+(((
1068	1068	Format: Command Code (0x06) followed by 3 bytes.
	1069	+)))
1069	1069
	1071	+(((
1070	1070	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1073	+)))
1071	1071
1072		-* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1073		-* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1075	+* (((
	1076	+Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1077	+)))
	1078	+* (((
	1079	+Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
	1080	+)))
1074	1074
	1082	+(((
	1083	+
	1084	+)))
	1085	+
	1086	+
	1087	+
1075	1075	== 3.3 Calibrate Sensor ==
1076	1076
1077	1077	Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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1246	1246
1247	1247	=== ​4.3.2 Replace the battery ===
1248	1248
	1262	+(((
1249	1249	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.
	1264	+)))
1250	1250
	1266	+(((
1251	1251	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)
	1268	+)))
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1269	1269	(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
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1271	1271
	1289	+(((
1272	1272	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:
	1291	+)))
1273	1273
1274	1274
1275	1275	[[image:1654593712276-618.png]]