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
...	...	@@ -20,27 +20,56 @@
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	46
...	...	@@ -47,10 +47,11 @@
47	47	== ​1.2  Features ==
48	48
49	49	* LoRaWAN 1.0.3 Class A
50		-* Ultra low power consumption
	78	+* Ultra-low power consumption
51	51	* Distance Detection by Ultrasonic technology
52		-* Flat object range 280mm - 7500mm
	80	+* Flat object range 30mm - 4500mm
53	53	* Accuracy: ±(1cm+S*0.3%) (S: Distance)
	82	+* 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 +57,9 @@
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
	89	+* 8500mAh Battery for long term use
61	61
	91	+
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)**
	99	+(((
	100	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
71	71
	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)**
	103	+)))
72	72
73	73
	106	+
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
	117	+(((
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.**
	119	+)))
85	85
86	86
87	87	[[image:1654852175653-550.png]](% style="display:none" %) ** **
...	...	@@ -108,16 +108,16 @@
108	108
109	109
110	110
111		-= 2.  Configure LDDS75 to connect to LoRaWAN network =
	146	+= 2.  Configure LDDS45 to connect to LoRaWAN network =
112	112
113	113	== 2.1  How it works ==
114	114
115	115	(((
116		-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
117	117	)))
118	118
119	119	(((
120		-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.
121	121	)))
122	122
123	123
...	...	@@ -126,10 +126,15 @@
126	126
127	127	(((
128	128	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	+
129	129	)))
130	130
	168	+[[image:1654913911773-521.png]]
	169	+
	170	+
131	131	(((
132		-[[image:1654848616367-242.png]]
	172	+
133	133	)))
134	134
135	135	(((
...	...	@@ -137,21 +137,27 @@
137	137	)))
138	138
139	139	(((
140		-(% 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.
141	141	)))
142	142
143	143	(((
144		-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.
145	145	)))
146	146
147	147	[[image:image-20220607170145-1.jpeg]]
148	148
149	149
	190	+(((
150	150	For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
	192	+)))
151	151
	194	+(((
152	152	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
	196	+)))
153	153
	198	+(((
154	154	**Add APP EUI in the application**
	200	+)))
155	155
156	156	[[image:image-20220610161353-4.png]]
157	157
...	...	@@ -162,7 +162,10 @@
162	162
163	163	[[image:image-20220610161353-7.png]]
164	164
	211	+**Choose LDDS75 instead of LDDS45 is ok. They are of the same payload**
165	165
	213	+
	214	+
166	166	You can also choose to create the device manually.
167	167
168	168	[[image:image-20220610161538-8.png]]
...	...	@@ -175,16 +175,16 @@
175	175
176	176
177	177
178		-(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
	227	+(% style="color:blue" %)**Step 2**(%%): Power on LDDS45
179	179
180	180
181	181	Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
182	182
183		-[[image:image-20220610161724-10.png]]
	232	+[[image:image-20220611102908-2.png]]
184	184
185	185
186	186	(((
187		-(% 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.
188	188	)))
189	189
190	190	[[image:1654849068701-275.png]]
...	...	@@ -194,11 +194,12 @@
194	194	== 2.3  ​Uplink Payload ==
195	195
196	196	(((
197		-LDDS75 will uplink payload via LoRaWAN with below payload format:
	246	+(((
	247	+LDDS45 will uplink payload via LoRaWAN with below payload format:
198	198
199		-Uplink payload includes in total 4 bytes.
200		-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.
201	201	)))
	251	+)))
202	202
203	203	(((
204	204
...	...	@@ -223,7 +223,7 @@
223	223	=== 2.3.1  Battery Info ===
224	224
225	225
226		-Check the battery voltage for LDDS75.
	276	+Check the battery voltage for LDDS45.
227	227
228	228	Ex1: 0x0B45 = 2885mV
229	229
...	...	@@ -233,19 +233,22 @@
233	233
234	234	=== 2.3.2  Distance ===
235	235
236		-Get the distance. Flat object range 280mm - 7500mm.
	286	+(((
	287	+Get the distance. Flat object range 30mm - 4500mm.
	288	+)))
237	237
238		-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	+)))
239	239
240	240
241	241	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
242		-* 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.
243	243
244	244
245		-
246	246	=== 2.3.3  Interrupt Pin ===
247	247
248		-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.
249	249
250	250	**Example:**
251	251
...	...	@@ -265,15 +265,17 @@
265	265
266	266	If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
267	267
268		-(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
269	269
270	270
271		-
272	272	=== 2.3.5  Sensor Flag ===
273	273
	325	+(((
274	274	0x01: Detect Ultrasonic Sensor
	327	+)))
275	275
	329	+(((
276	276	0x00: No Ultrasonic Sensor
	331	+)))
277	277
278	278
279	279
...	...	@@ -286,13 +286,15 @@
286	286
287	287	The payload decoder function for TTN V3 is here:
288	288
289		-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	+)))
290	290
291	291
292	292
293	293	== 2.4  Uplink Interval ==
294	294
295		-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"]]
296	296
297	297
298	298
...	...	@@ -323,7 +323,7 @@
323	323
324	324	(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
325	325
326		-(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
	383	+(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS45 and add DevEUI.**
327	327
328	328	[[image:1654851029373-510.png]]
329	329
...	...	@@ -337,7 +337,7 @@
337	337	== 2.6  Frequency Plans ==
338	338
339	339	(((
340		-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.
341	341	)))
342	342
343	343
...	...	@@ -804,7 +804,7 @@
804	804
805	805	== 2.7  LED Indicator ==
806	806
807		-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.
808	808
809	809
810	810	* Blink once when device power on.
...	...	@@ -813,14 +813,20 @@
813	813	* Blink once when device transmit a packet.
814	814
815	815
816		-
817	817	== 2.8  ​Firmware Change Log ==
818	818
819	819
820		-**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	+)))
821	821
	880	+(((
	881	+
	882	+)))
822	822
	884	+(((
823	823	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
	886	+)))
824	824
825	825
826	826
...	...	@@ -827,23 +827,76 @@
827	827	== 2.9  Mechanical ==
828	828
829	829
830		-[[image:image-20220610172003-1.png]]
	893	+[[image:1654915562090-396.png]]
831	831
832	832
833		-[[image:image-20220610172003-2.png]]
834	834
835	835
836		-== 2.10  Battery Analysis ==
837	837
838		-=== 2.10.1  Battery Type ===
	899	+= 3. Battery & How to replace =
839	839
840		-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.
	901	+== 3.1 Battery Type ==
841	841
	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	+)))
842	842
	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	+)))
	910	+
	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	+
843	843	The battery related documents as below:
844	844
845	845	* (((
846		-[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
	962	+[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
847	847	)))
848	848	* (((
849	849	[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
...	...	@@ -852,28 +852,33 @@
852	852	[[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]]
853	853	)))
854	854
855		- [[image:image-20220610172400-3.png]]
	971	+[[image:image-20220607172042-11.png]]
856	856
857	857
858	858
859		-=== 2.10.2  Replace the battery ===
	975	+=== 3.3.1 ​Battery Note ===
860	860
861	861	(((
862		-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.
863	863	)))
864	864
	981	+
	982	+
	983	+=== ​3.3.2 Replace the battery ===
	984	+
865	865	(((
866		-
	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.
867	867	)))
868	868
869	869	(((
870		-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)
871	871	)))
872	872
873	873
874	874
875		-= 3.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
876	876
	996	+= 4.  Configure LDDS75 via AT Command or LoRaWAN Downlink =
	997	+
877	877	(((
878	878	(((
879	879	Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
...	...	@@ -882,7 +882,7 @@
882	882
883	883	* (((
884	884	(((
885		-AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
	1006	+AT Command Connection: See [[FAQ>>||anchor="H4.A0FAQ"]].
886	886	)))
887	887	)))
888	888	* (((
...	...	@@ -950,7 +950,7 @@
950	950
951	951
952	952
953		-== 3.1  Access AT Commands ==
	1074	+== 4.1  Access AT Commands ==
954	954
955	955	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.
956	956
...	...	@@ -963,7 +963,9 @@
963	963	[[image:image-20220610172924-5.png]]
964	964
965	965
	1087	+(((
966	966	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	+)))
967	967
968	968
969	969	[[image:image-20220610172924-6.png||height="601" width="860"]]
...	...	@@ -970,7 +970,7 @@
970	970
971	971
972	972
973		-== 3.2  Set Transmit Interval Time ==
	1096	+== 4.2  Set Transmit Interval Time ==
974	974
975	975	Feature: Change LoRaWAN End Node Transmit Interval.
976	976
...	...	@@ -987,18 +987,21 @@
987	987	(((
988	988	Format: Command Code (0x01) followed by 3 bytes time value.
989	989
	1113	+(((
990	990	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1115	+)))
991	991
992	992	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
993	993	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
994	994	)))
	1120	+)))
995	995
996	996
997		-
998		-)))
999	999
1000		-== 3.3  Set Interrupt Mode ==
1001	1001
	1125	+
	1126	+== 4.3  Set Interrupt Mode ==
	1127	+
1002	1002	Feature, Set Interrupt mode for GPIO_EXIT.
1003	1003
1004	1004	(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
...	...	@@ -1010,20 +1010,23 @@
1010	1010
1011	1011	Format: Command Code (0x06) followed by 3 bytes.
1012	1012
	1139	+(((
1013	1013	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	+)))
1014	1014
1015	1015	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1016	1016	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1017	1017
1018		-= 4.  FAQ =
1019	1019
1020		-== 4.1  What is the frequency plan for LDDS75? ==
	1147	+= 5.  FAQ =
1021	1021
	1149	+== 5.1  What is the frequency plan for LDDS75? ==
	1150	+
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 ==
	1155	+== 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? ==
	1162	+== 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 =
	1168	+= 6.  Trouble Shooting =
1040	1040
1041		-== 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? ==
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 ==
	1175	+== 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 =
	1184	+= 7.  Order Info =
1056	1056
1057	1057
1058	1058	Part Number **:** (% style="color:blue" %)**LDDS75-XX-YY**
...	...	@@ -1074,9 +1074,10 @@
1074	1074	* (% style="color:red" %)**4 **(%%)**: **4000mAh battery
1075	1075	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1076	1076
1077		-= 7. ​ Packing Info =
1078	1078
	1207	+= 8. ​ Packing Info =
1079	1079
	1209	+
1080	1080	**Package Includes**:
1081	1081
1082	1082	* LDDS75 LoRaWAN Distance Detection Sensor x 1
...	...	@@ -1088,7 +1088,8 @@
1088	1088	* Package Size / pcs : cm
1089	1089	* Weight / pcs : g
1090	1090
1091		-= 8.  ​Support =
1092	1092
	1222	+= 9.  ​Support =
	1223	+
1093	1093	* 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.
1094	1094	* 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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