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13	13
14	14	**Contents:**
15	15
16		-{{toc/}}
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18	18
19	19
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22	22
23	23
24	24
25		-
26	26	= 1.  Introduction =
27	27
28	28	== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
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32	32
33	33	(((
34	34	(((
35		-The Dragino LDDS45 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)**ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS45 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
	33	+The Dragino LDDS45 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)** ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS45 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
36	36	)))
37	37
38	38	(((
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100	100	* 8500mAh Battery for long term use
101	101
102	102
103		-
104	104	== 1.3  Specification ==
105	105
106	106	=== 1.3.1  Rated environmental conditions ===
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148	148	* Bottom water level monitoring
149	149
150	150
151		-
152	152	== 1.6  Pin mapping and power on ==
153	153
154	154
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309	309	* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
310	310
311	311
312		-
313	313	=== 2.3.3  Interrupt Pin ===
314	314
315	315	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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883	883	* Solid ON for 5 seconds once device successful Join the network.
884	884	* Blink once when device transmit a packet.
885	885
	881	+
886	886	== 2.8  ​Firmware Change Log ==
887	887
888	888
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1016	1016
1017	1017	* (((
1018	1018	(((
1019		-AT Command Connection: See [[FAQ>>||anchor="H5.A0FAQ"]].
	1015	+AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
1020	1020	)))
1021	1021	)))
1022	1022	* (((
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1158	1158	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
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1160	1160
	1157	+
	1158	+
	1159	+
1161	1161	= 5.  FAQ =
1162	1162
1163		-== 5.1  What is the frequency plan for LDDS45? ==
	1162	+== 5.1  What is the frequency plan for LDDS75? ==
1164	1164
1165		-LDDS45 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
	1164	+LDDS75 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
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1168	1168
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1175	1175
	1175	+== 5.3  Can I use LDDS75 in condensation environment? ==
	1176	+
	1177	+LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
	1178	+
	1179	+
	1180	+
1176	1176	= 6.  Trouble Shooting =
1177	1177
1178		-== 6.1  AT Command input doesn't work ==
	1183	+== 6.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1179	1179
	1185	+It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	1186	+
	1187	+
	1188	+== 6.2  AT Command input doesn't work ==
	1189	+
1180	1180	In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
1181	1181
1182	1182	(((
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1187	1187	= 7.  Order Info =
1188	1188
1189	1189
1190		-Part Number **:** (% style="color:blue" %)**LDDS45-XX**
	1200	+Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
1191	1191
1192	1192
1193	1193	(% style="color:blue" %)**XX**(%%)**: **The default frequency band
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1201	1201	* (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1202	1202	* (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1203	1203
	1214	+(% style="color:blue" %)**YY**(%%): Battery Option
1204	1204
	1216	+* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
	1217	+* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
	1218	+
1205	1205	= 8. ​ Packing Info =
1206	1206
1207	1207
1208	1208	**Package Includes**:
1209	1209
1210		-* LDDS45 LoRaWAN Distance Detection Sensor x 1
	1224	+* LDDS75 LoRaWAN Distance Detection Sensor x 1
1211	1211
1212	1212	**Dimension and weight**:
1213	1213
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1216	1216	* Package Size / pcs : cm
1217	1217	* Weight / pcs : g
1218	1218
1219		-
1220	1220	= 9.  ​Support =
1221	1221
1222	1222	* 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.