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62	62	* [[10. ​Support>>path:#H10.A0200BSupport]]
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	69	+
65	65	= 1. Introduction =
66	66
67	67	== 1.1 ​What is LoRaWAN Soil pH Sensor ==
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108	108	* 8500mAh Battery for long term use
109	109
110	110
111		-
112		-
113	113	== 1.3 Probe Specification ==
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115	115
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131	131	* Length: 3.5 meters
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133	133
134		-
135		-
136	136	== 1.4 ​Applications ==
137	137
138	138	* Smart Agriculture
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140	140
141		-
142		-
143	143	== 1.5 Pin mapping and power on ==
144	144
145	145	[[image:1654592472094-134.png]]
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341	341
342		-
343	343	=== 2.3.7 Decode payload in The Things Network ===
344	344
345	345	While using TTN network, you can add the payload format to decode the payload.
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552	552
553	553
554	554
555		-
556	556	== 2.8 Frequency Plans ==
557	557
558	558	(((
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750	750	* 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)
751	751
752	752
753		-
754		-
755	755	=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
756	756
757	757	(((
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976	976	* Blink once when device transmit a packet.
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978	978
979		-
980	980	== 2.10 ​Firmware Change Log ==
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1052		-(((
1053	1053	(% style="color:#037691" %)**Downlink Command: 0x01**
1054		-)))
1055	1055
1056		-(((
1057	1057	Format: Command Code (0x01) followed by 3 bytes time value.
1058		-)))
1059	1059
1060		-(((
1061	1061	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
1062		-)))
1063	1063
1064		-* (((
1065		-Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1066		-)))
1067		-* (((
1068		-Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1052	+* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	1053	+* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
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1070	1070
1071		-
1072		-)))
1073	1073
1074	1074	== 3.2 Set Interrupt Mode ==
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1080	1080	[[image:image-20220607171716-9.png]]
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1082	1082
1083		-(((
1084	1084	(% style="color:#037691" %)**Downlink Command: 0x06**
1085		-)))
1086	1086
1087		-(((
1088	1088	Format: Command Code (0x06) followed by 3 bytes.
1089		-)))
1090	1090
1091		-(((
1092	1092	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
1093		-)))
1094	1094
1095		-* (((
1096		-Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1097		-)))
1098		-* (((
1099		-Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1100		-)))
	1072	+* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
	1073	+* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1101	1101
1102		-(((
1103		-
1104		-)))
1105		-
1106		-
1107		-
1108	1108	== 3.3 Calibrate Sensor ==
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1110	1110	Detail See [[Calibration Guide>>path:#H2.7Calibration]] for the user of 0x13 and 0x14 downlink commands
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1279	1279
1280	1280	=== ​4.3.2 Replace the battery ===
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1282		-(((
1283	1283	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.
1284		-)))
1285	1285
1286		-(((
1287	1287	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)
1288		-)))
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1290	1290
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1306	1306	(% style="background-color:yellow" %)** USB TTL RXD  <~-~-~-~-> UART_TXD**
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1308	1308
1309		-(((
1310	1310	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:
1311		-)))
1312	1312
1313	1313
1314	1314	[[image:1654593712276-618.png]]