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" %) ** **
...	...	@@ -130,8 +130,6 @@
130	130	* Bottom water level monitoring
131	131
132	132
133		-
134		-
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 =
	146	+= 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
	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
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.
	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.
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.
	164	+
	165	+
160	160	)))
161	161
	168	+[[image:1654913911773-521.png]]
	169	+
	170	+
162	162	(((
163		-[[image:1654848616367-242.png]]
	172	+
164	164	)))
165	165
166	166	(((
...	...	@@ -168,21 +168,27 @@
168	168	)))
169	169
170	170	(((
171		-(% 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.
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.
	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.
176	176	)))
177	177
178	178	[[image:image-20220607170145-1.jpeg]]
179	179
180	180
	190	+(((
181	181	For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
	192	+)))
182	182
	194	+(((
183	183	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
	196	+)))
184	184
	198	+(((
185	185	**Add APP EUI in the application**
	200	+)))
186	186
187	187	[[image:image-20220610161353-4.png]]
188	188
...	...	@@ -193,7 +193,10 @@
193	193
194	194	[[image:image-20220610161353-7.png]]
195	195
	211	+**Choose LDDS75 instead of LDDS45 is ok. They are of the same payload**
196	196
	213	+
	214	+
197	197	You can also choose to create the device manually.
198	198
199	199	[[image:image-20220610161538-8.png]]
...	...	@@ -206,16 +206,16 @@
206	206
207	207
208	208
209		-(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
	227	+(% style="color:blue" %)**Step 2**(%%): Power on LDDS45
210	210
211	211
212	212	Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
213	213
214		-[[image:image-20220610161724-10.png]]
	232	+[[image:image-20220611102908-2.png]]
215	215
216	216
217	217	(((
218		-(% 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.
219	219	)))
220	220
221	221	[[image:1654849068701-275.png]]
...	...	@@ -225,11 +225,12 @@
225	225	== 2.3  ​Uplink Payload ==
226	226
227	227	(((
228		-LDDS75 will uplink payload via LoRaWAN with below payload format:
	246	+(((
	247	+LDDS45 will uplink payload via LoRaWAN with below payload format:
229	229
230		-Uplink payload includes in total 4 bytes.
231		-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.
232	232	)))
	251	+)))
233	233
234	234	(((
235	235
...	...	@@ -254,7 +254,7 @@
254	254	=== 2.3.1  Battery Info ===
255	255
256	256
257		-Check the battery voltage for LDDS75.
	276	+Check the battery voltage for LDDS45.
258	258
259	259	Ex1: 0x0B45 = 2885mV
260	260
...	...	@@ -264,17 +264,22 @@
264	264
265	265	=== 2.3.2  Distance ===
266	266
267		-Get the distance. Flat object range 280mm - 7500mm.
	286	+(((
	287	+Get the distance. Flat object range 30mm - 4500mm.
	288	+)))
268	268
269		-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	+)))
270	270
271	271
272	272	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
273		-* 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.
274	274
	298	+
275	275	=== 2.3.3  Interrupt Pin ===
276	276
277		-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.
278	278
279	279	**Example:**
280	280
...	...	@@ -294,15 +294,17 @@
294	294
295	295	If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
296	296
297		-(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
298	298
299	299
300		-
301	301	=== 2.3.5  Sensor Flag ===
302	302
	325	+(((
303	303	0x01: Detect Ultrasonic Sensor
	327	+)))
304	304
	329	+(((
305	305	0x00: No Ultrasonic Sensor
	331	+)))
306	306
307	307
308	308
...	...	@@ -315,13 +315,15 @@
315	315
316	316	The payload decoder function for TTN V3 is here:
317	317
318		-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	+)))
319	319
320	320
321	321
322	322	== 2.4  Uplink Interval ==
323	323
324		-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"]]
325	325
326	326
327	327
...	...	@@ -352,7 +352,7 @@
352	352
353	353	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
354	354
355		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
	383	+(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS45 and add DevEUI.**
356	356
357	357	[[image:1654851029373-510.png]]
358	358
...	...	@@ -366,7 +366,7 @@
366	366	== 2.6  Frequency Plans ==
367	367
368	368	(((
369		-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.
370	370	)))
371	371
372	372
...	...	@@ -833,7 +833,7 @@
833	833
834	834	== 2.7  LED Indicator ==
835	835
836		-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.
837	837
838	838
839	839	* Blink once when device power on.
...	...	@@ -841,13 +841,21 @@
841	841	* Solid ON for 5 seconds once device successful Join the network.
842	842	* Blink once when device transmit a packet.
843	843
	872	+
844	844	== 2.8  ​Firmware Change Log ==
845	845
846	846
847		-**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	+)))
848	848
	880	+(((
	881	+
	882	+)))
849	849
	884	+(((
850	850	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
	886	+)))
851	851
852	852
853	853
...	...	@@ -854,20 +854,72 @@
854	854	== 2.9  Mechanical ==
855	855
856	856
857		-[[image:image-20220610172003-1.png]]
	893	+[[image:1654915562090-396.png]]
858	858
859	859
860		-[[image:image-20220610172003-2.png]]
861	861
862	862
863	863
864		-== 2.10  Battery Analysis ==
	899	+= 3. Battery & How to replace =
865	865
866		-=== 2.10.1  Battery Type ===
	901	+== 3.1 Battery Type ==
867	867
868		-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	+)))
869	869
	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	+)))
870	870
	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	+
871	871	The battery related documents as below:
872	872
873	873	* (((
...	...	@@ -880,28 +880,33 @@
880	880	[[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]]
881	881	)))
882	882
883		- [[image:image-20220610172400-3.png]]
	971	+[[image:image-20220607172042-11.png]]
884	884
885	885
886	886
887		-=== 2.10.2  Replace the battery ===
	975	+=== 3.3.1 ​Battery Note ===
888	888
889	889	(((
890		-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.
891	891	)))
892	892
	981	+
	982	+
	983	+=== ​3.3.2 Replace the battery ===
	984	+
893	893	(((
894		-
	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.
895	895	)))
896	896
897	897	(((
898		-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)
899	899	)))
900	900
901	901
902	902
903		-= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
904	904
	996	+= 4.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
	997	+
905	905	(((
906	906	(((
907	907	Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
...	...	@@ -978,7 +978,7 @@
978	978
979	979
980	980
981		-== 3.1  Access AT Commands ==
	1074	+== 4.1  Access AT Commands ==
982	982
983	983	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.
984	984
...	...	@@ -991,7 +991,9 @@
991	991	[[image:image-20220610172924-5.png]]
992	992
993	993
	1087	+(((
994	994	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	+)))
995	995
996	996
997	997	[[image:image-20220610172924-6.png||height="601" width="860"]]
...	...	@@ -998,7 +998,7 @@
998	998
999	999
1000	1000
1001		-== 3.2  Set Transmit Interval Time ==
	1096	+== 4.2  Set Transmit Interval Time ==
1002	1002
1003	1003	Feature: Change LoRaWAN End Node Transmit Interval.
1004	1004
...	...	@@ -1015,18 +1015,21 @@
1015	1015	(((
1016	1016	Format: Command Code (0x01) followed by 3 bytes time value.
1017	1017
	1113	+(((
1018	1018	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1115	+)))
1019	1019
1020	1020	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1021	1021	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1022	1022	)))
	1120	+)))
1023	1023
1024	1024
1025		-
1026		-)))
1027	1027
1028		-== 3.3  Set Interrupt Mode ==
1029	1029
	1125	+
	1126	+== 4.3  Set Interrupt Mode ==
	1127	+
1030	1030	Feature, Set Interrupt mode for GPIO_EXIT.
1031	1031
1032	1032	(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
...	...	@@ -1038,21 +1038,23 @@
1038	1038
1039	1039	Format: Command Code (0x06) followed by 3 bytes.
1040	1040
	1139	+(((
1041	1041	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	+)))
1042	1042
1043	1043	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1044	1044	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1045	1045
1046	1046
1047		-= 4.  FAQ =
	1147	+= 5.  FAQ =
1048	1048
1049		-== 4.1  What is the frequency plan for LDDS75? ==
	1149	+== 5.1  What is the frequency plan for LDDS75? ==
1050	1050
1051	1051	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"]]
1052	1052
1053	1053
1054	1054
1055		-== 4.2  How to change the LoRa Frequency Bands/Region ==
	1155	+== 5.2  How to change the LoRa Frequency Bands/Region ==
1056	1056
1057	1057	You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1058	1058	When downloading the images, choose the required image file for download. ​
...	...	@@ -1059,20 +1059,20 @@
1059	1059
1060	1060
1061	1061
1062		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1162	+== 5.3  Can I use LDDS75 in condensation environment? ==
1063	1063
1064	1064	LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1065	1065
1066	1066
1067	1067
1068		-= 5.  Trouble Shooting =
	1168	+= 6.  Trouble Shooting =
1069	1069
1070		-== 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? ==
1071	1071
1072	1072	It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1073	1073
1074	1074
1075		-== 5.2  AT Command input doesn't work ==
	1175	+== 6.2  AT Command input doesn't work ==
1076	1076
1077	1077	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.
1078	1078
...	...	@@ -1081,7 +1081,7 @@
1081	1081	)))
1082	1082
1083	1083
1084		-= 6.  Order Info =
	1184	+= 7.  Order Info =
1085	1085
1086	1086
1087	1087	Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
...	...	@@ -1104,7 +1104,7 @@
1104	1104	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1105	1105
1106	1106
1107		-= 7. ​ Packing Info =
	1207	+= 8. ​ Packing Info =
1108	1108
1109	1109
1110	1110	**Package Includes**:
...	...	@@ -1119,7 +1119,7 @@
1119	1119	* Weight / pcs : g
1120	1120
1121	1121
1122		-= 8.  ​Support =
	1222	+= 9.  ​Support =
1123	1123
1124	1124	* 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.
1125	1125	* 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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