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67	67	= 1. Introduction =
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69	69	== 1.1 ​What is LoRaWAN Soil pH Sensor ==
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109	109	* IP68 rate for the Sensor Probe
110	110	* 8500mAh Battery for long term use
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112	112	== 1.3 Probe Specification ==
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114	114
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129	129	* IP68 Protection
130	130	* Length: 3.5 meters
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132	132	== 1.4 ​Applications ==
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134	134	* Smart Agriculture
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136	136	== 1.5 Pin mapping and power on ==
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138	138	[[image:1654592472094-134.png]]
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330	330	|0x02|Reply configures info|[[Configure Info Payload>>path:#H3.4GetFirmwareVersionInfo]]
331	331	|0x03|Reply Calibration Info|[[Calibration Payload>>path:#H2.7Calibration]]
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333	333	=== 2.3.7 Decode payload in The Things Network ===
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335	335	While using TTN network, you can add the payload format to decode the payload.
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540	540	* Reply to the confirmation package: 14 01
541	541	* Reply to non-confirmed packet: 14 00
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543	543	== 2.8 Frequency Plans ==
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545	545	(((
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624	624	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
625	625	* 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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627	627	=== 2.8.3 CN470-510 (CN470) ===
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629	629	(((
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733	733	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
734	734	* 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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736	736	=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
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738	738	(((
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1046	1046	)))
1047	1047	* (((
1048	1048	Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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1051		-
1052		-)))
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1054	1054	== 3.2 Set Interrupt Mode ==
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1260	1260	=== ​4.3.2 Replace the battery ===
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1262		-(((
1263	1263	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		-)))
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1266		-(((
1267	1267	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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1286	1286	(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
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1290	1290	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:
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1294	1294	[[image:1654593712276-618.png]]