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89	89	* 8500mAh Battery for long term use
90	90
91	91
	92	+
92	92	== 1.3  Specification ==
93	93
94	94	=== 1.3.1  Rated environmental conditions ===
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97	97
98	98
99	99	(((
100		-**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
	101	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  **
101	101
102	102	**~ 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)**
103	103	)))
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136	136	* Bottom water level monitoring
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138	138
	140	+
139	139	== 1.6  Pin mapping and power on ==
140	140
141	141
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165	165
166	166	)))
167	167
168		-[[image:1654913911773-521.png]]
	170	+[[image:1654913911773-521.png]]
169	169
170	170
171	171	(((
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244	244
245	245	(((
246	246	(((
247		-LDDS45 will uplink payload via LoRaWAN with below payload format:
	249	+LDDS45 will uplink payload via LoRaWAN with below payload format:
248	248
249	249	Uplink payload includes in total 8 bytes.
250	250	)))
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296	296	* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
297	297
298	298
	301	+
299	299	=== 2.3.3  Interrupt Pin ===
300	300
301		-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.
	304	+This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.
302	302
303	303	**Example:**
304	304
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318	318
319	319	If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
320	320
	324	+(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
321	321
322	322
	327	+
323	323	=== 2.3.5  Sensor Flag ===
324	324
325	325	(((
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342	342	The payload decoder function for TTN V3 is here:
343	343
344	344	(((
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/]]
	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/]]
346	346	)))
347	347
348	348
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349	349
350	350	== 2.4  Uplink Interval ==
351	351
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"]]
	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"]]
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380	380
381	381	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
382	382
383		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS45 and add DevEUI.**
	388	+(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
384	384
385	385	[[image:1654851029373-510.png]]
386	386
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394	394	== 2.6  Frequency Plans ==
395	395
396	396	(((
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.
	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.
398	398	)))
399	399
400	400
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861	861
862	862	== 2.7  LED Indicator ==
863	863
864		-The LDDS45 has an internal LED which is to show the status of different state.
	869	+The LDDS75 has an internal LED which is to show the status of different state.
865	865
866	866
867	867	* Blink once when device power on.
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870	870	* Blink once when device transmit a packet.
871	871
872	872
	878	+
873	873	== 2.8  ​Firmware Change Log ==
874	874
875	875
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1087	1087	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1088	1088
1089	1089
	1096	+
1090	1090	= 4.  FAQ =
1091	1091
1092	1092	== 4.1  What is the frequency plan for LDDS75? ==
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1147	1147	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1148	1148
1149	1149
	1157	+
1150	1150	= 7. ​ Packing Info =
1151	1151
1152	1152
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1162	1162	* Weight / pcs : g
1163	1163
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	1173	+
1165	1165	= 8.  ​Support =
1166	1166
1167	1167	* 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.