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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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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)
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740	740
741		-
742		-
743	743	=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
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745	745	(((
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964	964	* Blink once when device transmit a packet.
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966	966
967		-
968	968	== 2.10 ​Firmware Change Log ==
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1054	1054	)))
1055	1055	* (((
1056	1056	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1063	+)))
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1058	1058
1059		-
1060		-)))
1061	1061
1062	1062	== 3.2 Set Interrupt Mode ==
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1087	1087	Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1088	1088	)))
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1090		-(((
1091		-
1092		-)))
1093		-
1094		-
1095		-
1096	1096	== 3.3 Calibrate Sensor ==
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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 ===
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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		-)))
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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)
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1294	1294	(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
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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		-)))
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1302	1302	[[image:1654593712276-618.png]]