Changes for page LDDS45 - LoRaWAN Distance Detection Sensor User Manual

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Title

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1		-LDDS75 - LoRaWAN Distance Detection Sensor User Manual
	1	+LDDS45 - LoRaWAN Distance Detection Sensor User Manual

Content

...	...	@@ -1,9 +1,8 @@
1	1	(% style="text-align:center" %)
2		-[[image:1654846127817-788.png]]
	2	+[[image:1654912614655-664.png||height="530" width="628"]]
3	3
4	4	**Contents:**
5	5
6		-{{toc/}}
7	7
8	8
9	9
...	...	@@ -21,7 +21,7 @@
21	21
22	22	(((
23	23	(((
24		-The Dragino LDDS75 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 LDDS75 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.
	23	+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.
25	25	)))
26	26
27	27	(((
...	...	@@ -37,7 +37,7 @@
37	37	)))
38	38
39	39	(((
40		-The LoRa wireless technology used in LDDS75 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
	39	+The LoRa wireless technology used in LDDS45 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
41	41	)))
42	42
43	43	(((
...	...	@@ -45,7 +45,7 @@
45	45	)))
46	46
47	47	(((
48		-LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
	47	+LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
49	49	)))
50	50
51	51	(((
...	...	@@ -53,7 +53,7 @@
53	53	)))
54	54
55	55	(((
56		-Each LDDS75 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
	55	+Each LDDS45 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
57	57	)))
58	58
59	59	(((
...	...	@@ -62,22 +62,24 @@
62	62
63	63	(((
64	64	(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
	64	+
	65	+
65	65	)))
66	66	)))
67	67	)))
68	68
	70	+[[image:1654912858581-740.png]]
69	69
70		-[[image:1654847051249-359.png]]
71	71
72	72
73		-
74	74	== ​1.2  Features ==
75	75
76	76	* LoRaWAN 1.0.3 Class A
77		-* Ultra low power consumption
	77	+* Ultra-low power consumption
78	78	* Distance Detection by Ultrasonic technology
79		-* Flat object range 280mm - 7500mm
	79	+* Flat object range 30mm - 4500mm
80	80	* Accuracy: ±(1cm+S*0.3%) (S: Distance)
	81	+* Measure Angle: 60°
81	81	* Cable Length : 25cm
82	82	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
83	83	* AT Commands to change parameters
...	...	@@ -84,9 +84,12 @@
84	84	* Uplink on periodically
85	85	* Downlink to change configure
86	86	* IP66 Waterproof Enclosure
87		-* 4000mAh or 8500mAh Battery for long term use
	88	+* 8500mAh Battery for long term use
88	88
89	89
	91	+
	92	+
	93	+
90	90	== 1.3  Specification ==
91	91
92	92	=== 1.3.1  Rated environmental conditions ===
...	...	@@ -93,8 +93,11 @@
93	93
94	94	[[image:image-20220610154839-1.png]]
95	95
	100	+
96	96	(((
97		-**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  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)**
	102	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
	103	+
	104	+**~ 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)**
98	98	)))
99	99
100	100
...	...	@@ -132,6 +132,8 @@
132	132
133	133
134	134
	142	+
	143	+
135	135	== 1.6  Pin mapping and power on ==
136	136
137	137
...	...	@@ -139,16 +139,16 @@
139	139
140	140
141	141
142		-= 2.  Configure LDDS75 to connect to LoRaWAN network =
	151	+= 2.  Configure LDDS45 to connect to LoRaWAN network =
143	143
144	144	== 2.1  How it works ==
145	145
146	146	(((
147		-The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
	156	+The LDDS45 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS45. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
148	148	)))
149	149
150	150	(((
151		-In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
	160	+In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS45.
152	152	)))
153	153
154	154
...	...	@@ -157,10 +157,15 @@
157	157
158	158	(((
159	159	Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example.
	169	+
	170	+
160	160	)))
161	161
	173	+[[image:1654913911773-521.png]]
	174	+
	175	+
162	162	(((
163		-[[image:1654848616367-242.png]]
	177	+
164	164	)))
165	165
166	166	(((
...	...	@@ -168,11 +168,11 @@
168	168	)))
169	169
170	170	(((
171		-(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
	185	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS45.
172	172	)))
173	173
174	174	(((
175		-Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
	189	+Each LDDS45 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
176	176	)))
177	177
178	178	[[image:image-20220607170145-1.jpeg]]
...	...	@@ -199,7 +199,10 @@
199	199
200	200	[[image:image-20220610161353-7.png]]
201	201
	216	+**Choose LDDS75 instead of LDDS45 is ok. They are of the same payload**
202	202
	218	+
	219	+
203	203	You can also choose to create the device manually.
204	204
205	205	[[image:image-20220610161538-8.png]]
...	...	@@ -212,16 +212,16 @@
212	212
213	213
214	214
215		-(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
	232	+(% style="color:blue" %)**Step 2**(%%): Power on LDDS45
216	216
217	217
218	218	Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
219	219
220		-[[image:image-20220610161724-10.png]]
	237	+[[image:image-20220611102908-2.png]]
221	221
222	222
223	223	(((
224		-(% style="color:blue" %)**Step 3**(%%)**:** The LDDS75 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	241	+(% style="color:blue" %)**Step 3**(%%)**:** The LDDS45 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.
225	225	)))
226	226
227	227	[[image:1654849068701-275.png]]
...	...	@@ -232,12 +232,9 @@
232	232
233	233	(((
234	234	(((
235		-LDDS75 will uplink payload via LoRaWAN with below payload format:
236		-)))
	252	+LDDS45 will uplink payload via LoRaWAN with below payload format:
237	237
238		-(((
239		-Uplink payload includes in total 4 bytes.
240		-Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
	254	+Uplink payload includes in total 8 bytes.
241	241	)))
242	242	)))
243	243
...	...	@@ -264,7 +264,7 @@
264	264	=== 2.3.1  Battery Info ===
265	265
266	266
267		-Check the battery voltage for LDDS75.
	281	+Check the battery voltage for LDDS45.
268	268
269	269	Ex1: 0x0B45 = 2885mV
270	270
...	...	@@ -274,17 +274,21 @@
274	274
275	275	=== 2.3.2  Distance ===
276	276
277		-Get the distance. Flat object range 280mm - 7500mm.
	291	+(((
	292	+Get the distance. Flat object range 30mm - 4500mm.
	293	+)))
278	278
279		-For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
	295	+(((
	296	+For example, if the data you get from the register is __0x0B 0x05__, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
	297	+)))
280	280
281	281
282	282	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
283		-* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
	301	+* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
284	284
285	285	=== 2.3.3  Interrupt Pin ===
286	286
287		-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.
	305	+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.
288	288
289	289	**Example:**
290	290
...	...	@@ -304,15 +304,17 @@
304	304
305	305	If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
306	306
307		-(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
308	308
309	309
310		-
311	311	=== 2.3.5  Sensor Flag ===
312	312
	329	+(((
313	313	0x01: Detect Ultrasonic Sensor
	331	+)))
314	314
	333	+(((
315	315	0x00: No Ultrasonic Sensor
	335	+)))
316	316
317	317
318	318
...	...	@@ -325,13 +325,15 @@
325	325
326	326	The payload decoder function for TTN V3 is here:
327	327
328		-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/]]
	348	+(((
	349	+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	+)))
329	329
330	330
331	331
332	332	== 2.4  Uplink Interval ==
333	333
334		-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"]]
	356	+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"]]
335	335
336	336
337	337
...	...	@@ -362,7 +362,7 @@
362	362
363	363	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
364	364
365		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
	387	+(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS45 and add DevEUI.**
366	366
367	367	[[image:1654851029373-510.png]]
368	368
...	...	@@ -376,7 +376,7 @@
376	376	== 2.6  Frequency Plans ==
377	377
378	378	(((
379		-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.
	401	+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.
380	380	)))
381	381
382	382
...	...	@@ -843,7 +843,7 @@
843	843
844	844	== 2.7  LED Indicator ==
845	845
846		-The LDDS75 has an internal LED which is to show the status of different state.
	868	+The LDDS45 has an internal LED which is to show the status of different state.
847	847
848	848
849	849	* Blink once when device power on.
...	...	@@ -854,10 +854,17 @@
854	854	== 2.8  ​Firmware Change Log ==
855	855
856	856
857		-**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
	879	+(((
	880	+**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Firmware/]]
	881	+)))
858	858
	883	+(((
	884	+
	885	+)))
859	859
	887	+(((
860	860	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
	889	+)))
861	861
862	862
863	863
...	...	@@ -864,20 +864,72 @@
864	864	== 2.9  Mechanical ==
865	865
866	866
867		-[[image:image-20220610172003-1.png]]
	896	+[[image:1654915562090-396.png]]
868	868
869	869
870		-[[image:image-20220610172003-2.png]]
871	871
872	872
873	873
874		-== 2.10  Battery Analysis ==
	902	+= 3. Battery & How to replace =
875	875
876		-=== 2.10.1  Battery Type ===
	904	+== 3.1 Battery Type ==
877	877
878		-The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
	906	+(((
	907	+LSPH01 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
	908	+)))
879	879
	910	+(((
	911	+The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	912	+)))
880	880
	914	+[[image:1654593587246-335.png]]
	915	+
	916	+
	917	+Minimum Working Voltage for the LSPH01:
	918	+
	919	+LSPH01:  2.45v ~~ 3.6v
	920	+
	921	+
	922	+
	923	+== 3.2 Replace Battery ==
	924	+
	925	+(((
	926	+Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
	927	+)))
	928	+
	929	+(((
	930	+And make sure the positive and negative pins match.
	931	+)))
	932	+
	933	+
	934	+
	935	+== 3.3 Power Consumption Analyze ==
	936	+
	937	+(((
	938	+Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
	939	+)))
	940	+
	941	+(((
	942	+Instruction to use as below:
	943	+)))
	944	+
	945	+
	946	+**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
	947	+
	948	+[[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
	949	+
	950	+
	951	+**Step 2**: Open it and choose
	952	+
	953	+* Product Model
	954	+* Uplink Interval
	955	+* Working Mode
	956	+
	957	+And the Life expectation in difference case will be shown on the right.
	958	+
	959	+[[image:1654593605679-189.png]]
	960	+
	961	+
881	881	The battery related documents as below:
882	882
883	883	* (((
...	...	@@ -890,28 +890,33 @@
890	890	[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
891	891	)))
892	892
893		- [[image:image-20220610172400-3.png]]
	974	+[[image:image-20220607172042-11.png]]
894	894
895	895
896	896
897		-=== 2.10.2  Replace the battery ===
	978	+=== 3.3.1 ​Battery Note ===
898	898
899	899	(((
900		-You can change the battery in the LDDS75.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.
	981	+The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
901	901	)))
902	902
	984	+
	985	+
	986	+=== ​3.3.2 Replace the battery ===
	987	+
903	903	(((
904		-
	989	+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.
905	905	)))
906	906
907	907	(((
908		-The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can't find this pack locally, they can find ER18505 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)
	993	+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)
909	909	)))
910	910
911	911
912	912
913		-= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
914	914
	999	+= 4.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
	1000	+
915	915	(((
916	916	(((
917	917	Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
...	...	@@ -988,7 +988,7 @@
988	988
989	989
990	990
991		-== 3.1  Access AT Commands ==
	1077	+== 4.1  Access AT Commands ==
992	992
993	993	LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
994	994
...	...	@@ -1001,7 +1001,9 @@
1001	1001	[[image:image-20220610172924-5.png]]
1002	1002
1003	1003
	1090	+(((
1004	1004	In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
	1092	+)))
1005	1005
1006	1006
1007	1007	[[image:image-20220610172924-6.png||height="601" width="860"]]
...	...	@@ -1008,7 +1008,7 @@
1008	1008
1009	1009
1010	1010
1011		-== 3.2  Set Transmit Interval Time ==
	1099	+== 4.2  Set Transmit Interval Time ==
1012	1012
1013	1013	Feature: Change LoRaWAN End Node Transmit Interval.
1014	1014
...	...	@@ -1025,18 +1025,21 @@
1025	1025	(((
1026	1026	Format: Command Code (0x01) followed by 3 bytes time value.
1027	1027
	1116	+(((
1028	1028	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1118	+)))
1029	1029
1030	1030	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1031	1031	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1032	1032	)))
	1123	+)))
1033	1033
1034	1034
1035		-
1036		-)))
1037	1037
1038		-== 3.3  Set Interrupt Mode ==
1039	1039
	1128	+
	1129	+== 4.3  Set Interrupt Mode ==
	1130	+
1040	1040	Feature, Set Interrupt mode for GPIO_EXIT.
1041	1041
1042	1042	(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
...	...	@@ -1048,20 +1048,22 @@
1048	1048
1049	1049	Format: Command Code (0x06) followed by 3 bytes.
1050	1050
	1142	+(((
1051	1051	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1144	+)))
1052	1052
1053	1053	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1054	1054	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1055	1055
1056		-= 4.  FAQ =
	1149	+= 5.  FAQ =
1057	1057
1058		-== 4.1  What is the frequency plan for LDDS75? ==
	1151	+== 5.1  What is the frequency plan for LDDS75? ==
1059	1059
1060	1060	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"]]
1061	1061
1062	1062
1063	1063
1064		-== 4.2  How to change the LoRa Frequency Bands/Region ==
	1157	+== 5.2  How to change the LoRa Frequency Bands/Region ==
1065	1065
1066	1066	You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1067	1067	When downloading the images, choose the required image file for download. ​
...	...	@@ -1068,20 +1068,20 @@
1068	1068
1069	1069
1070	1070
1071		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1164	+== 5.3  Can I use LDDS75 in condensation environment? ==
1072	1072
1073	1073	LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1074	1074
1075	1075
1076	1076
1077		-= 5.  Trouble Shooting =
	1170	+= 6.  Trouble Shooting =
1078	1078
1079		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
	1172	+== 6.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1080	1080
1081	1081	It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1082	1082
1083	1083
1084		-== 5.2  AT Command input doesn't work ==
	1177	+== 6.2  AT Command input doesn't work ==
1085	1085
1086	1086	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.
1087	1087
...	...	@@ -1090,7 +1090,7 @@
1090	1090	)))
1091	1091
1092	1092
1093		-= 6.  Order Info =
	1186	+= 7.  Order Info =
1094	1094
1095	1095
1096	1096	Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
...	...	@@ -1112,7 +1112,7 @@
1112	1112	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1113	1113	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1114	1114
1115		-= 7. ​ Packing Info =
	1208	+= 8. ​ Packing Info =
1116	1116
1117	1117
1118	1118	**Package Includes**:
...	...	@@ -1126,7 +1126,7 @@
1126	1126	* Package Size / pcs : cm
1127	1127	* Weight / pcs : g
1128	1128
1129		-= 8.  ​Support =
	1222	+= 9.  ​Support =
1130	1130
1131	1131	* 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.
1132	1132	* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].

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