Changes for page LDDS45 - LoRaWAN Distance Detection Sensor User Manual

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Details

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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	(((
...	...	@@ -62,12 +62,14 @@
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	73
...	...	@@ -74,10 +74,11 @@
74	74	== ​1.2  Features ==
75	75
76	76	* LoRaWAN 1.0.3 Class A
77		-* Ultra low power consumption
	78	+* Ultra-low power consumption
78	78	* Distance Detection by Ultrasonic technology
79		-* Flat object range 280mm - 7500mm
	80	+* Flat object range 30mm - 4500mm
80	80	* Accuracy: ±(1cm+S*0.3%) (S: Distance)
	82	+* 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
...	...	@@ -84,10 +84,9 @@
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
	89	+* 8500mAh Battery for long term use
88	88
89	89
90		-
91	91	== 1.3  Specification ==
92	92
93	93	=== 1.3.1  Rated environmental conditions ===
...	...	@@ -94,8 +94,11 @@
94	94
95	95	[[image:image-20220610154839-1.png]]
96	96
	98	+
97	97	(((
98		-**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)**
	100	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
	101	+
	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)**
99	99	)))
100	100
101	101
...	...	@@ -110,7 +110,9 @@
110	110
111	111
112	112
	117	+(((
113	113	**(2)** **The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
	119	+)))
114	114
115	115
116	116	[[image:1654852175653-550.png]](% style="display:none" %) ** **
...	...	@@ -129,6 +129,7 @@
129	129	* Sewer
130	130	* Bottom water level monitoring
131	131
	138	+
132	132	== 1.6  Pin mapping and power on ==
133	133
134	134
...	...	@@ -136,16 +136,16 @@
136	136
137	137
138	138
139		-= 2.  Configure LDDS75 to connect to LoRaWAN network =
	146	+= 2.  Configure LDDS45 to connect to LoRaWAN network =
140	140
141	141	== 2.1  How it works ==
142	142
143	143	(((
144		-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
	151	+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
145	145	)))
146	146
147	147	(((
148		-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.
	155	+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.
149	149	)))
150	150
151	151
...	...	@@ -154,10 +154,15 @@
154	154
155	155	(((
156	156	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.
	164	+
	165	+
157	157	)))
158	158
	168	+[[image:1654913911773-521.png]]
	169	+
	170	+
159	159	(((
160		-[[image:1654848616367-242.png]]
	172	+
161	161	)))
162	162
163	163	(((
...	...	@@ -165,21 +165,27 @@
165	165	)))
166	166
167	167	(((
168		-(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
	180	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS45.
169	169	)))
170	170
171	171	(((
172		-Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
	184	+Each LDDS45 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
173	173	)))
174	174
175	175	[[image:image-20220607170145-1.jpeg]]
176	176
177	177
	190	+(((
178	178	For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
	192	+)))
179	179
	194	+(((
180	180	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
	196	+)))
181	181
	198	+(((
182	182	**Add APP EUI in the application**
	200	+)))
183	183
184	184	[[image:image-20220610161353-4.png]]
185	185
...	...	@@ -190,7 +190,10 @@
190	190
191	191	[[image:image-20220610161353-7.png]]
192	192
	211	+**Choose LDDS75 instead of LDDS45 is ok. They are of the same payload**
193	193
	213	+
	214	+
194	194	You can also choose to create the device manually.
195	195
196	196	[[image:image-20220610161538-8.png]]
...	...	@@ -203,16 +203,16 @@
203	203
204	204
205	205
206		-(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
	227	+(% style="color:blue" %)**Step 2**(%%): Power on LDDS45
207	207
208	208
209	209	Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
210	210
211		-[[image:image-20220610161724-10.png]]
	232	+[[image:image-20220611102908-2.png]]
212	212
213	213
214	214	(((
215		-(% 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.
	236	+(% 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.
216	216	)))
217	217
218	218	[[image:1654849068701-275.png]]
...	...	@@ -222,11 +222,12 @@
222	222	== 2.3  ​Uplink Payload ==
223	223
224	224	(((
225		-LDDS75 will uplink payload via LoRaWAN with below payload format:
	246	+(((
	247	+LDDS45 will uplink payload via LoRaWAN with below payload format:
226	226
227		-Uplink payload includes in total 4 bytes.
228		-Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
	249	+Uplink payload includes in total 8 bytes.
229	229	)))
	251	+)))
230	230
231	231	(((
232	232
...	...	@@ -251,7 +251,7 @@
251	251	=== 2.3.1  Battery Info ===
252	252
253	253
254		-Check the battery voltage for LDDS75.
	276	+Check the battery voltage for LDDS45.
255	255
256	256	Ex1: 0x0B45 = 2885mV
257	257
...	...	@@ -261,17 +261,22 @@
261	261
262	262	=== 2.3.2  Distance ===
263	263
264		-Get the distance. Flat object range 280mm - 7500mm.
	286	+(((
	287	+Get the distance. Flat object range 30mm - 4500mm.
	288	+)))
265	265
266		-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.**
	290	+(((
	291	+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.**
	292	+)))
267	267
268	268
269	269	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
270		-* 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.
	296	+* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
271	271
	298	+
272	272	=== 2.3.3  Interrupt Pin ===
273	273
274		-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.
	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.
275	275
276	276	**Example:**
277	277
...	...	@@ -291,15 +291,17 @@
291	291
292	292	If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
293	293
294		-(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
295	295
296	296
297		-
298	298	=== 2.3.5  Sensor Flag ===
299	299
	325	+(((
300	300	0x01: Detect Ultrasonic Sensor
	327	+)))
301	301
	329	+(((
302	302	0x00: No Ultrasonic Sensor
	331	+)))
303	303
304	304
305	305
...	...	@@ -312,13 +312,15 @@
312	312
313	313	The payload decoder function for TTN V3 is here:
314	314
315		-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/]]
	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/]]
	346	+)))
316	316
317	317
318	318
319	319	== 2.4  Uplink Interval ==
320	320
321		-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"]]
322	322
323	323
324	324
...	...	@@ -349,7 +349,7 @@
349	349
350	350	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
351	351
352		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
	383	+(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS45 and add DevEUI.**
353	353
354	354	[[image:1654851029373-510.png]]
355	355
...	...	@@ -363,7 +363,7 @@
363	363	== 2.6  Frequency Plans ==
364	364
365	365	(((
366		-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.
367	367	)))
368	368
369	369
...	...	@@ -830,7 +830,7 @@
830	830
831	831	== 2.7  LED Indicator ==
832	832
833		-The LDDS75 has an internal LED which is to show the status of different state.
	864	+The LDDS45 has an internal LED which is to show the status of different state.
834	834
835	835
836	836	* Blink once when device power on.
...	...	@@ -838,13 +838,21 @@
838	838	* Solid ON for 5 seconds once device successful Join the network.
839	839	* Blink once when device transmit a packet.
840	840
	872	+
841	841	== 2.8  ​Firmware Change Log ==
842	842
843	843
844		-**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/]]
	876	+(((
	877	+**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/]]
	878	+)))
845	845
	880	+(((
	881	+
	882	+)))
846	846
	884	+(((
847	847	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
	886	+)))
848	848
849	849
850	850
...	...	@@ -851,20 +851,72 @@
851	851	== 2.9  Mechanical ==
852	852
853	853
854		-[[image:image-20220610172003-1.png]]
	893	+[[image:1654915562090-396.png]]
855	855
856	856
857		-[[image:image-20220610172003-2.png]]
858	858
859	859
860	860
861		-== 2.10  Battery Analysis ==
	899	+= 3. Battery & How to replace =
862	862
863		-=== 2.10.1  Battery Type ===
	901	+== 3.1 Battery Type ==
864	864
865		-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.
	903	+(((
	904	+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.
	905	+)))
866	866
	907	+(((
	908	+The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	909	+)))
867	867
	911	+[[image:1654593587246-335.png]]
	912	+
	913	+
	914	+Minimum Working Voltage for the LSPH01:
	915	+
	916	+LSPH01:  2.45v ~~ 3.6v
	917	+
	918	+
	919	+
	920	+== 3.2 Replace Battery ==
	921	+
	922	+(((
	923	+Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
	924	+)))
	925	+
	926	+(((
	927	+And make sure the positive and negative pins match.
	928	+)))
	929	+
	930	+
	931	+
	932	+== 3.3 Power Consumption Analyze ==
	933	+
	934	+(((
	935	+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.
	936	+)))
	937	+
	938	+(((
	939	+Instruction to use as below:
	940	+)))
	941	+
	942	+
	943	+**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
	944	+
	945	+[[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/]]
	946	+
	947	+
	948	+**Step 2**: Open it and choose
	949	+
	950	+* Product Model
	951	+* Uplink Interval
	952	+* Working Mode
	953	+
	954	+And the Life expectation in difference case will be shown on the right.
	955	+
	956	+[[image:1654593605679-189.png]]
	957	+
	958	+
868	868	The battery related documents as below:
869	869
870	870	* (((
...	...	@@ -877,28 +877,33 @@
877	877	[[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]]
878	878	)))
879	879
880		- [[image:image-20220610172400-3.png]]
	971	+[[image:image-20220607172042-11.png]]
881	881
882	882
883	883
884		-=== 2.10.2  Replace the battery ===
	975	+=== 3.3.1 ​Battery Note ===
885	885
886	886	(((
887		-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.
	978	+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.
888	888	)))
889	889
	981	+
	982	+
	983	+=== ​3.3.2 Replace the battery ===
	984	+
890	890	(((
891		-
	986	+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.
892	892	)))
893	893
894	894	(((
895		-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)
	990	+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)
896	896	)))
897	897
898	898
899	899
900		-= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
901	901
	996	+= 4.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
	997	+
902	902	(((
903	903	(((
904	904	Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
...	...	@@ -975,7 +975,7 @@
975	975
976	976
977	977
978		-== 3.1  Access AT Commands ==
	1074	+== 4.1  Access AT Commands ==
979	979
980	980	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.
981	981
...	...	@@ -988,7 +988,9 @@
988	988	[[image:image-20220610172924-5.png]]
989	989
990	990
	1087	+(((
991	991	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:
	1089	+)))
992	992
993	993
994	994	[[image:image-20220610172924-6.png||height="601" width="860"]]
...	...	@@ -995,7 +995,7 @@
995	995
996	996
997	997
998		-== 3.2  Set Transmit Interval Time ==
	1096	+== 4.2  Set Transmit Interval Time ==
999	999
1000	1000	Feature: Change LoRaWAN End Node Transmit Interval.
1001	1001
...	...	@@ -1012,18 +1012,21 @@
1012	1012	(((
1013	1013	Format: Command Code (0x01) followed by 3 bytes time value.
1014	1014
	1113	+(((
1015	1015	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1115	+)))
1016	1016
1017	1017	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1018	1018	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1019	1019	)))
	1120	+)))
1020	1020
1021	1021
1022		-
1023		-)))
1024	1024
1025		-== 3.3  Set Interrupt Mode ==
1026	1026
	1125	+
	1126	+== 4.3  Set Interrupt Mode ==
	1127	+
1027	1027	Feature, Set Interrupt mode for GPIO_EXIT.
1028	1028
1029	1029	(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
...	...	@@ -1035,21 +1035,23 @@
1035	1035
1036	1036	Format: Command Code (0x06) followed by 3 bytes.
1037	1037
	1139	+(((
1038	1038	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1141	+)))
1039	1039
1040	1040	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1041	1041	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1042	1042
1043	1043
1044		-= 4.  FAQ =
	1147	+= 5.  FAQ =
1045	1045
1046		-== 4.1  What is the frequency plan for LDDS75? ==
	1149	+== 5.1  What is the frequency plan for LDDS75? ==
1047	1047
1048	1048	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"]]
1049	1049
1050	1050
1051	1051
1052		-== 4.2  How to change the LoRa Frequency Bands/Region ==
	1155	+== 5.2  How to change the LoRa Frequency Bands/Region ==
1053	1053
1054	1054	You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1055	1055	When downloading the images, choose the required image file for download. ​
...	...	@@ -1056,20 +1056,20 @@
1056	1056
1057	1057
1058	1058
1059		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1162	+== 5.3  Can I use LDDS75 in condensation environment? ==
1060	1060
1061	1061	LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1062	1062
1063	1063
1064	1064
1065		-= 5.  Trouble Shooting =
	1168	+= 6.  Trouble Shooting =
1066	1066
1067		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
	1170	+== 6.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1068	1068
1069	1069	It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1070	1070
1071	1071
1072		-== 5.2  AT Command input doesn't work ==
	1175	+== 6.2  AT Command input doesn't work ==
1073	1073
1074	1074	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.
1075	1075
...	...	@@ -1078,7 +1078,7 @@
1078	1078	)))
1079	1079
1080	1080
1081		-= 6.  Order Info =
	1184	+= 7.  Order Info =
1082	1082
1083	1083
1084	1084	Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
...	...	@@ -1101,7 +1101,7 @@
1101	1101	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1102	1102
1103	1103
1104		-= 7. ​ Packing Info =
	1207	+= 8. ​ Packing Info =
1105	1105
1106	1106
1107	1107	**Package Includes**:
...	...	@@ -1116,7 +1116,7 @@
1116	1116	* Weight / pcs : g
1117	1117
1118	1118
1119		-= 8.  ​Support =
	1222	+= 9.  ​Support =
1120	1120
1121	1121	* 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.
1122	1122	* 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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