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89	89	* 8500mAh Battery for long term use
90	90
91	91
92		-
93	93	== 1.3  Specification ==
94	94
95	95	=== 1.3.1  Rated environmental conditions ===
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98	98
99	99
100	100	(((
101		-**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  **
	100	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
102	102
103	103	**~ b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
104	104	)))
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137	137	* Bottom water level monitoring
138	138
139	139
140		-
141	141	== 1.6  Pin mapping and power on ==
142	142
143	143
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167	167
168	168	)))
169	169
170		-[[image:1654913911773-521.png]]
	168	+[[image:1654913911773-521.png]]
171	171
172	172
173	173	(((
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246	246
247	247	(((
248	248	(((
249		-LDDS45 will uplink payload via LoRaWAN with below payload format:
	247	+LDDS45 will uplink payload via LoRaWAN with below payload format:
250	250
251	251	Uplink payload includes in total 8 bytes.
252	252	)))
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298	298	* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
299	299
300	300
301		-
302	302	=== 2.3.3  Interrupt Pin ===
303	303
304	304	This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.3A0SetInterruptMode"]] for the hardware and software set up.
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321	321
322	322	If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
323	323
324		-(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
325	325
326	326
327		-
328	328	=== 2.3.5  Sensor Flag ===
329	329
330	330	(((
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347	347	The payload decoder function for TTN V3 is here:
348	348
349	349	(((
350		-LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
	345	+LDDS45 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
351	351	)))
352	352
353	353
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354	354
355	355	== 2.4  Uplink Interval ==
356	356
357		-The LDDS75 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
	352	+The LDDS45 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
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359	359
360	360
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385	385
386	386	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
387	387
388		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
	383	+(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS45 and add DevEUI.**
389	389
390	390	[[image:1654851029373-510.png]]
391	391
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399	399	== 2.6  Frequency Plans ==
400	400
401	401	(((
402		-The LDDS75 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
	397	+The LDDS45 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
403	403	)))
404	404
405	405
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875	875	* Blink once when device transmit a packet.
876	876
877	877
878		-
879	879	== 2.8  ​Firmware Change Log ==
880	880
881	881
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1093	1093	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1094	1094
1095	1095
1096		-
1097	1097	= 4.  FAQ =
1098	1098
1099	1099	== 4.1  What is the frequency plan for LDDS75? ==
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1154	1154	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1155	1155
1156	1156
1157		-
1158	1158	= 7. ​ Packing Info =
1159	1159
1160	1160
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1170	1170	* Weight / pcs : g
1171	1171
1172	1172
1173		-
1174	1174	= 8.  ​Support =
1175	1175
1176	1176	* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.