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
...	...	@@ -109,7 +109,9 @@
109	109
110	110
111	111
	119	+(((
112	112	**(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.**
	121	+)))
113	113
114	114
115	115	[[image:1654852175653-550.png]](% style="display:none" %) ** **
...	...	@@ -130,6 +130,8 @@
130	130
131	131
132	132
	142	+
	143	+
133	133	== 1.6  Pin mapping and power on ==
134	134
135	135
...	...	@@ -137,16 +137,16 @@
137	137
138	138
139	139
140		-= 2.  Configure LDDS75 to connect to LoRaWAN network =
	151	+= 2.  Configure LDDS45 to connect to LoRaWAN network =
141	141
142	142	== 2.1  How it works ==
143	143
144	144	(((
145		-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
146	146	)))
147	147
148	148	(((
149		-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.
150	150	)))
151	151
152	152
...	...	@@ -155,10 +155,15 @@
155	155
156	156	(((
157	157	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	+
158	158	)))
159	159
	173	+[[image:1654913911773-521.png]]
	174	+
	175	+
160	160	(((
161		-[[image:1654848616367-242.png]]
	177	+
162	162	)))
163	163
164	164	(((
...	...	@@ -166,21 +166,27 @@
166	166	)))
167	167
168	168	(((
169		-(% 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.
170	170	)))
171	171
172	172	(((
173		-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.
174	174	)))
175	175
176	176	[[image:image-20220607170145-1.jpeg]]
177	177
178	178
	195	+(((
179	179	For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
	197	+)))
180	180
	199	+(((
181	181	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
	201	+)))
182	182
	203	+(((
183	183	**Add APP EUI in the application**
	205	+)))
184	184
185	185	[[image:image-20220610161353-4.png]]
186	186
...	...	@@ -191,7 +191,10 @@
191	191
192	192	[[image:image-20220610161353-7.png]]
193	193
	216	+**Choose LDDS75 instead of LDDS45 is ok. They are of the same payload**
194	194
	218	+
	219	+
195	195	You can also choose to create the device manually.
196	196
197	197	[[image:image-20220610161538-8.png]]
...	...	@@ -204,16 +204,16 @@
204	204
205	205
206	206
207		-(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
	232	+(% style="color:blue" %)**Step 2**(%%): Power on LDDS45
208	208
209	209
210	210	Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
211	211
212		-[[image:image-20220610161724-10.png]]
	237	+[[image:image-20220611102908-2.png]]
213	213
214	214
215	215	(((
216		-(% 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.
217	217	)))
218	218
219	219	[[image:1654849068701-275.png]]
...	...	@@ -223,11 +223,12 @@
223	223	== 2.3  ​Uplink Payload ==
224	224
225	225	(((
226		-LDDS75 will uplink payload via LoRaWAN with below payload format:
	251	+(((
	252	+LDDS45 will uplink payload via LoRaWAN with below payload format:
227	227
228		-Uplink payload includes in total 4 bytes.
229		-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.
230	230	)))
	256	+)))
231	231
232	232	(((
233	233
...	...	@@ -252,7 +252,7 @@
252	252	=== 2.3.1  Battery Info ===
253	253
254	254
255		-Check the battery voltage for LDDS75.
	281	+Check the battery voltage for LDDS45.
256	256
257	257	Ex1: 0x0B45 = 2885mV
258	258
...	...	@@ -262,17 +262,25 @@
262	262
263	263	=== 2.3.2  Distance ===
264	264
265		-Get the distance. Flat object range 280mm - 7500mm.
	291	+(((
	292	+Get the distance. Flat object range 30mm - 4500mm.
	293	+)))
266	266
267		-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	+)))
268	268
269	269
270	270	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
271		-* 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.
272	272
	303	+
	304	+
	305	+
	306	+
273	273	=== 2.3.3  Interrupt Pin ===
274	274
275		-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.
	309	+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.
276	276
277	277	**Example:**
278	278
...	...	@@ -292,15 +292,17 @@
292	292
293	293	If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
294	294
295		-(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
296	296
297	297
298		-
299	299	=== 2.3.5  Sensor Flag ===
300	300
	333	+(((
301	301	0x01: Detect Ultrasonic Sensor
	335	+)))
302	302
	337	+(((
303	303	0x00: No Ultrasonic Sensor
	339	+)))
304	304
305	305
306	306
...	...	@@ -313,13 +313,15 @@
313	313
314	314	The payload decoder function for TTN V3 is here:
315	315
316		-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/]]
	352	+(((
	353	+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/]]
	354	+)))
317	317
318	318
319	319
320	320	== 2.4  Uplink Interval ==
321	321
322		-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"]]
	360	+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"]]
323	323
324	324
325	325
...	...	@@ -350,7 +350,7 @@
350	350
351	351	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
352	352
353		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
	391	+(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS45 and add DevEUI.**
354	354
355	355	[[image:1654851029373-510.png]]
356	356
...	...	@@ -364,7 +364,7 @@
364	364	== 2.6  Frequency Plans ==
365	365
366	366	(((
367		-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.
	405	+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.
368	368	)))
369	369
370	370
...	...	@@ -831,7 +831,7 @@
831	831
832	832	== 2.7  LED Indicator ==
833	833
834		-The LDDS75 has an internal LED which is to show the status of different state.
	872	+The LDDS45 has an internal LED which is to show the status of different state.
835	835
836	836
837	837	* Blink once when device power on.
...	...	@@ -839,13 +839,24 @@
839	839	* Solid ON for 5 seconds once device successful Join the network.
840	840	* Blink once when device transmit a packet.
841	841
	880	+
	881	+
	882	+
	883	+
842	842	== 2.8  ​Firmware Change Log ==
843	843
844	844
845		-**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/]]
	887	+(((
	888	+**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/]]
	889	+)))
846	846
	891	+(((
	892	+
	893	+)))
847	847
	895	+(((
848	848	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
	897	+)))
849	849
850	850
851	851
...	...	@@ -852,20 +852,72 @@
852	852	== 2.9  Mechanical ==
853	853
854	854
855		-[[image:image-20220610172003-1.png]]
	904	+[[image:1654915562090-396.png]]
856	856
857	857
858		-[[image:image-20220610172003-2.png]]
859	859
860	860
861	861
862		-== 2.10  Battery Analysis ==
	910	+= 3. Battery & How to replace =
863	863
864		-=== 2.10.1  Battery Type ===
	912	+== 3.1 Battery Type ==
865	865
866		-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.
	914	+(((
	915	+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.
	916	+)))
867	867
	918	+(((
	919	+The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
	920	+)))
868	868
	922	+[[image:1654593587246-335.png]]
	923	+
	924	+
	925	+Minimum Working Voltage for the LSPH01:
	926	+
	927	+LSPH01:  2.45v ~~ 3.6v
	928	+
	929	+
	930	+
	931	+== 3.2 Replace Battery ==
	932	+
	933	+(((
	934	+Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
	935	+)))
	936	+
	937	+(((
	938	+And make sure the positive and negative pins match.
	939	+)))
	940	+
	941	+
	942	+
	943	+== 3.3 Power Consumption Analyze ==
	944	+
	945	+(((
	946	+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.
	947	+)))
	948	+
	949	+(((
	950	+Instruction to use as below:
	951	+)))
	952	+
	953	+
	954	+**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from:
	955	+
	956	+[[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/]]
	957	+
	958	+
	959	+**Step 2**: Open it and choose
	960	+
	961	+* Product Model
	962	+* Uplink Interval
	963	+* Working Mode
	964	+
	965	+And the Life expectation in difference case will be shown on the right.
	966	+
	967	+[[image:1654593605679-189.png]]
	968	+
	969	+
869	869	The battery related documents as below:
870	870
871	871	* (((
...	...	@@ -878,28 +878,33 @@
878	878	[[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]]
879	879	)))
880	880
881		- [[image:image-20220610172400-3.png]]
	982	+[[image:image-20220607172042-11.png]]
882	882
883	883
884	884
885		-=== 2.10.2  Replace the battery ===
	986	+=== 3.3.1 ​Battery Note ===
886	886
887	887	(((
888		-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.
	989	+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.
889	889	)))
890	890
	992	+
	993	+
	994	+=== ​3.3.2 Replace the battery ===
	995	+
891	891	(((
892		-
	997	+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.
893	893	)))
894	894
895	895	(((
896		-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)
	1001	+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)
897	897	)))
898	898
899	899
900	900
901		-= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
902	902
	1007	+= 4.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
	1008	+
903	903	(((
904	904	(((
905	905	Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
...	...	@@ -976,7 +976,7 @@
976	976
977	977
978	978
979		-== 3.1  Access AT Commands ==
	1085	+== 4.1  Access AT Commands ==
980	980
981	981	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.
982	982
...	...	@@ -989,7 +989,9 @@
989	989	[[image:image-20220610172924-5.png]]
990	990
991	991
	1098	+(((
992	992	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:
	1100	+)))
993	993
994	994
995	995	[[image:image-20220610172924-6.png||height="601" width="860"]]
...	...	@@ -996,7 +996,7 @@
996	996
997	997
998	998
999		-== 3.2  Set Transmit Interval Time ==
	1107	+== 4.2  Set Transmit Interval Time ==
1000	1000
1001	1001	Feature: Change LoRaWAN End Node Transmit Interval.
1002	1002
...	...	@@ -1013,18 +1013,21 @@
1013	1013	(((
1014	1014	Format: Command Code (0x01) followed by 3 bytes time value.
1015	1015
	1124	+(((
1016	1016	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1126	+)))
1017	1017
1018	1018	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1019	1019	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1020	1020	)))
	1131	+)))
1021	1021
1022	1022
1023		-
1024		-)))
1025	1025
1026		-== 3.3  Set Interrupt Mode ==
1027	1027
	1136	+
	1137	+== 4.3  Set Interrupt Mode ==
	1138	+
1028	1028	Feature, Set Interrupt mode for GPIO_EXIT.
1029	1029
1030	1030	(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
...	...	@@ -1036,20 +1036,22 @@
1036	1036
1037	1037	Format: Command Code (0x06) followed by 3 bytes.
1038	1038
	1150	+(((
1039	1039	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1152	+)))
1040	1040
1041	1041	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1042	1042	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1043	1043
1044		-= 4.  FAQ =
	1157	+= 5.  FAQ =
1045	1045
1046		-== 4.1  What is the frequency plan for LDDS75? ==
	1159	+== 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 ==
	1165	+== 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? ==
	1172	+== 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 =
	1178	+= 6.  Trouble Shooting =
1066	1066
1067		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
	1180	+== 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 ==
	1185	+== 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 =
	1194	+= 7.  Order Info =
1082	1082
1083	1083
1084	1084	Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
...	...	@@ -1100,7 +1100,7 @@
1100	1100	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1101	1101	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1102	1102
1103		-= 7. ​ Packing Info =
	1216	+= 8. ​ Packing Info =
1104	1104
1105	1105
1106	1106	**Package Includes**:
...	...	@@ -1114,7 +1114,7 @@
1114	1114	* Package Size / pcs : cm
1115	1115	* Weight / pcs : g
1116	1116
1117		-= 8.  ​Support =
	1230	+= 9.  ​Support =
1118	1118
1119	1119	* 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.
1120	1120	* 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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