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
...	...	@@ -20,37 +20,66 @@
20	20
21	21
22	22	(((
23		-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.
	22	+(((
	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.
	24	+)))
24	24
	26	+(((
	27	+
	28	+)))
25	25
	30	+(((
26	26	It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
	32	+)))
27	27
	34	+(((
	35	+
	36	+)))
28	28
29		-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.
	38	+(((
	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.
	40	+)))
30	30
	42	+(((
	43	+
	44	+)))
31	31
32		-LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
	46	+(((
	47	+LDDS45 is powered by (% style="color:#4472c4" %)** 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
	48	+)))
33	33
	50	+(((
	51	+
	52	+)))
34	34
35		-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.
	54	+(((
	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.
	56	+)))
36	36
	58	+(((
	59	+
	60	+)))
37	37
	62	+(((
38	38	(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
	64	+
	65	+
39	39	)))
40	40	)))
	68	+)))
41	41
	70	+[[image:1654912858581-740.png]]
42	42
43		-[[image:1654847051249-359.png]]
44	44
45	45
46		-
47	47	== ​1.2  Features ==
48	48
49	49	* LoRaWAN 1.0.3 Class A
50		-* Ultra low power consumption
	77	+* Ultra-low power consumption
51	51	* Distance Detection by Ultrasonic technology
52		-* Flat object range 280mm - 7500mm
	79	+* Flat object range 30mm - 4500mm
53	53	* Accuracy: ±(1cm+S*0.3%) (S: Distance)
	81	+* Measure Angle: 60°
54	54	* Cable Length : 25cm
55	55	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
56	56	* AT Commands to change parameters
...	...	@@ -57,8 +57,12 @@
57	57	* Uplink on periodically
58	58	* Downlink to change configure
59	59	* IP66 Waterproof Enclosure
60		-* 4000mAh or 8500mAh Battery for long term use
	88	+* 8500mAh Battery for long term use
61	61
	90	+
	91	+
	92	+
	93	+
62	62	== 1.3  Specification ==
63	63
64	64	=== 1.3.1  Rated environmental conditions ===
...	...	@@ -65,12 +65,15 @@
65	65
66	66	[[image:image-20220610154839-1.png]]
67	67
68		-**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
69	69
70		-**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)**
	101	+(((
	102	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
71	71
	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)**
	105	+)))
72	72
73	73
	108	+
74	74	=== 1.3.2  Effective measurement range Reference beam pattern ===
75	75
76	76	**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
...	...	@@ -81,7 +81,9 @@
81	81
82	82
83	83
	119	+(((
84	84	**(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	+)))
85	85
86	86
87	87	[[image:1654852175653-550.png]](% style="display:none" %) ** **
...	...	@@ -100,6 +100,10 @@
100	100	* Sewer
101	101	* Bottom water level monitoring
102	102
	140	+
	141	+
	142	+
	143	+
103	103	== 1.6  Pin mapping and power on ==
104	104
105	105
...	...	@@ -107,16 +107,16 @@
107	107
108	108
109	109
110		-= 2.  Configure LDDS75 to connect to LoRaWAN network =
	151	+= 2.  Configure LDDS45 to connect to LoRaWAN network =
111	111
112	112	== 2.1  How it works ==
113	113
114	114	(((
115		-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
116	116	)))
117	117
118	118	(((
119		-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.
120	120	)))
121	121
122	122
...	...	@@ -125,10 +125,15 @@
125	125
126	126	(((
127	127	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	+
128	128	)))
129	129
	173	+[[image:1654913911773-521.png]]
	174	+
	175	+
130	130	(((
131		-[[image:1654848616367-242.png]]
	177	+
132	132	)))
133	133
134	134	(((
...	...	@@ -136,21 +136,27 @@
136	136	)))
137	137
138	138	(((
139		-(% 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.
140	140	)))
141	141
142	142	(((
143		-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.
144	144	)))
145	145
146	146	[[image:image-20220607170145-1.jpeg]]
147	147
148	148
	195	+(((
149	149	For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
	197	+)))
150	150
	199	+(((
151	151	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
	201	+)))
152	152
	203	+(((
153	153	**Add APP EUI in the application**
	205	+)))
154	154
155	155	[[image:image-20220610161353-4.png]]
156	156
...	...	@@ -161,7 +161,10 @@
161	161
162	162	[[image:image-20220610161353-7.png]]
163	163
	216	+**Choose LDDS75 instead of LDDS45 is ok. They are of the same payload**
164	164
	218	+
	219	+
165	165	You can also choose to create the device manually.
166	166
167	167	[[image:image-20220610161538-8.png]]
...	...	@@ -174,16 +174,16 @@
174	174
175	175
176	176
177		-(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
	232	+(% style="color:blue" %)**Step 2**(%%): Power on LDDS45
178	178
179	179
180	180	Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
181	181
182		-[[image:image-20220610161724-10.png]]
	237	+[[image:image-20220611102908-2.png]]
183	183
184	184
185	185	(((
186		-(% 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.
187	187	)))
188	188
189	189	[[image:1654849068701-275.png]]
...	...	@@ -193,11 +193,12 @@
193	193	== 2.3  ​Uplink Payload ==
194	194
195	195	(((
196		-LDDS75 will uplink payload via LoRaWAN with below payload format:
	251	+(((
	252	+LDDS45 will uplink payload via LoRaWAN with below payload format:
197	197
198		-Uplink payload includes in total 4 bytes.
199		-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.
200	200	)))
	256	+)))
201	201
202	202	(((
203	203
...	...	@@ -222,7 +222,7 @@
222	222	=== 2.3.1  Battery Info ===
223	223
224	224
225		-Check the battery voltage for LDDS75.
	281	+Check the battery voltage for LDDS45.
226	226
227	227	Ex1: 0x0B45 = 2885mV
228	228
...	...	@@ -232,18 +232,25 @@
232	232
233	233	=== 2.3.2  Distance ===
234	234
235		-Get the distance. Flat object range 280mm - 7500mm.
	291	+(((
	292	+Get the distance. Flat object range 30mm - 4500mm.
	293	+)))
236	236
237		-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	+)))
238	238
239	239
240	240	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
241		-* 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.
242	242
243	243
	304	+
	305	+
	306	+
244	244	=== 2.3.3  Interrupt Pin ===
245	245
246		-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.
247	247
248	248	**Example:**
249	249
...	...	@@ -263,15 +263,17 @@
263	263
264	264	If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
265	265
266		-(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
267	267
268	268
269		-
270	270	=== 2.3.5  Sensor Flag ===
271	271
	333	+(((
272	272	0x01: Detect Ultrasonic Sensor
	335	+)))
273	273
	337	+(((
274	274	0x00: No Ultrasonic Sensor
	339	+)))
275	275
276	276
277	277
...	...	@@ -284,13 +284,15 @@
284	284
285	285	The payload decoder function for TTN V3 is here:
286	286
287		-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	+)))
288	288
289	289
290	290
291	291	== 2.4  Uplink Interval ==
292	292
293		-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"]]
294	294
295	295
296	296
...	...	@@ -321,7 +321,7 @@
321	321
322	322	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
323	323
324		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
	391	+(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS45 and add DevEUI.**
325	325
326	326	[[image:1654851029373-510.png]]
327	327
...	...	@@ -335,7 +335,7 @@
335	335	== 2.6  Frequency Plans ==
336	336
337	337	(((
338		-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.
339	339	)))
340	340
341	341
...	...	@@ -802,7 +802,7 @@
802	802
803	803	== 2.7  LED Indicator ==
804	804
805		-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.
806	806
807	807
808	808	* Blink once when device power on.
...	...	@@ -811,13 +811,23 @@
811	811	* Blink once when device transmit a packet.
812	812
813	813
	881	+
	882	+
	883	+
814	814	== 2.8  ​Firmware Change Log ==
815	815
816	816
817		-**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	+)))
818	818
	891	+(((
	892	+
	893	+)))
819	819
	895	+(((
820	820	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
	897	+)))
821	821
822	822
823	823
...	...	@@ -824,20 +824,72 @@
824	824	== 2.9  Mechanical ==
825	825
826	826
827		-[[image:image-20220610172003-1.png]]
	904	+[[image:1654915562090-396.png]]
828	828
829	829
830		-[[image:image-20220610172003-2.png]]
831	831
832	832
833	833
834		-== 2.10  Battery Analysis ==
	910	+= 3. Battery & How to replace =
835	835
836		-=== 2.10.1  Battery Type ===
	912	+== 3.1 Battery Type ==
837	837
838		-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	+)))
839	839
	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	+)))
840	840
	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	+
841	841	The battery related documents as below:
842	842
843	843	* (((
...	...	@@ -850,28 +850,33 @@
850	850	[[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]]
851	851	)))
852	852
853		- [[image:image-20220610172400-3.png]]
	982	+[[image:image-20220607172042-11.png]]
854	854
855	855
856	856
857		-=== 2.10.2  Replace the battery ===
	986	+=== 3.3.1 ​Battery Note ===
858	858
859	859	(((
860		-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.
861	861	)))
862	862
	992	+
	993	+
	994	+=== ​3.3.2 Replace the battery ===
	995	+
863	863	(((
864		-
	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.
865	865	)))
866	866
867	867	(((
868		-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)
869	869	)))
870	870
871	871
872	872
873		-= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
874	874
	1007	+= 4.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
	1008	+
875	875	(((
876	876	(((
877	877	Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
...	...	@@ -948,7 +948,7 @@
948	948
949	949
950	950
951		-== 3.1  Access AT Commands ==
	1085	+== 4.1  Access AT Commands ==
952	952
953	953	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.
954	954
...	...	@@ -961,7 +961,9 @@
961	961	[[image:image-20220610172924-5.png]]
962	962
963	963
	1098	+(((
964	964	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	+)))
965	965
966	966
967	967	[[image:image-20220610172924-6.png||height="601" width="860"]]
...	...	@@ -968,7 +968,7 @@
968	968
969	969
970	970
971		-== 3.2  Set Transmit Interval Time ==
	1107	+== 4.2  Set Transmit Interval Time ==
972	972
973	973	Feature: Change LoRaWAN End Node Transmit Interval.
974	974
...	...	@@ -985,18 +985,21 @@
985	985	(((
986	986	Format: Command Code (0x01) followed by 3 bytes time value.
987	987
	1124	+(((
988	988	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1126	+)))
989	989
990	990	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
991	991	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
992	992	)))
	1131	+)))
993	993
994	994
995		-
996		-)))
997	997
998		-== 3.3  Set Interrupt Mode ==
999	999
	1136	+
	1137	+== 4.3  Set Interrupt Mode ==
	1138	+
1000	1000	Feature, Set Interrupt mode for GPIO_EXIT.
1001	1001
1002	1002	(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
...	...	@@ -1008,22 +1008,22 @@
1008	1008
1009	1009	Format: Command Code (0x06) followed by 3 bytes.
1010	1010
	1150	+(((
1011	1011	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	+)))
1012	1012
1013	1013	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1014	1014	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1015	1015
	1157	+= 5.  FAQ =
1016	1016
	1159	+== 5.1  What is the frequency plan for LDDS75? ==
1017	1017
1018		-= 4.  FAQ =
1019		-
1020		-== 4.1  What is the frequency plan for LDDS75? ==
1021		-
1022	1022	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"]]
1023	1023
1024	1024
1025	1025
1026		-== 4.2  How to change the LoRa Frequency Bands/Region ==
	1165	+== 5.2  How to change the LoRa Frequency Bands/Region ==
1027	1027
1028	1028	You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1029	1029	When downloading the images, choose the required image file for download. ​
...	...	@@ -1030,20 +1030,20 @@
1030	1030
1031	1031
1032	1032
1033		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1172	+== 5.3  Can I use LDDS75 in condensation environment? ==
1034	1034
1035	1035	LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1036	1036
1037	1037
1038	1038
1039		-= 5.  Trouble Shooting =
	1178	+= 6.  Trouble Shooting =
1040	1040
1041		-== 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? ==
1042	1042
1043	1043	It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1044	1044
1045	1045
1046		-== 5.2  AT Command input doesn't work ==
	1185	+== 6.2  AT Command input doesn't work ==
1047	1047
1048	1048	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.
1049	1049
...	...	@@ -1052,7 +1052,7 @@
1052	1052	)))
1053	1053
1054	1054
1055		-= 6.  Order Info =
	1194	+= 7.  Order Info =
1056	1056
1057	1057
1058	1058	Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
...	...	@@ -1074,11 +1074,9 @@
1074	1074	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1075	1075	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1076	1076
	1216	+= 8. ​ Packing Info =
1077	1077
1078	1078
1079		-= 7. ​ Packing Info =
1080		-
1081		-
1082	1082	**Package Includes**:
1083	1083
1084	1084	* LDDS75 LoRaWAN Distance Detection Sensor x 1
...	...	@@ -1090,9 +1090,7 @@
1090	1090	* Package Size / pcs : cm
1091	1091	* Weight / pcs : g
1092	1092
	1230	+= 9.  ​Support =
1093	1093
1094		-
1095		-= 8.  ​Support =
1096		-
1097	1097	* 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.
1098	1098	* 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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