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62	62	* [[10. ​Support>>path:#H10.A0200BSupport]]
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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
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	115	+
110	110	== 1.3 Probe Specification ==
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112	112
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127	127	* IP68 Protection
128	128	* Length: 3.5 meters
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	136	+
130	130	== 1.4 ​Applications ==
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132	132	* Smart Agriculture
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134	134	== 1.5 Pin mapping and power on ==
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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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	340	+
331	331	=== 2.3.7 Decode payload in The Things Network ===
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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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541	541	== 2.8 Frequency Plans ==
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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.
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963	963
964		-
965	965	== 2.10 ​Firmware Change Log ==
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967	967
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1051	1051	)))
1052	1052	* (((
1053	1053	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1063	+)))
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1055	1055
1056		-
1057		-)))
1058	1058
1059	1059	== 3.2 Set Interrupt Mode ==
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1084	1084	Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1085	1085	)))
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1087		-(((
1088		-
1089		-)))
1090		-
1091		-
1092		-
1093	1093	== 3.3 Calibrate Sensor ==
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1095	1095	Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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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		-)))
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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)
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1291	1291	(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
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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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1299	1299	[[image:1654593712276-618.png]]