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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 113.3
edited by Xiaoling
on 2023/11/10 09:28
Change comment: There is no comment for this version
To version 82.3
edited by Xiaoling
on 2023/06/14 16:32
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
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1 -DS20L -- LoRaWAN Smart Distance Detector User Manual
1 +LDS12-LB -- LoRaWAN LiDAR ToF Distance Sensor User Manual
Content
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1 1  (% style="text-align:center" %)
2 -[[image:image-20231110085342-2.png||height="481" width="481"]]
2 +[[image:image-20230614153353-1.png]]
3 3  
4 4  
5 5  
... ... @@ -7,7 +7,6 @@
7 7  
8 8  
9 9  
10 -
11 11  **Table of Contents：**
12 12  
13 13  {{toc/}}
... ... @@ -19,23 +19,26 @@
19 19  
20 20  = 1. Introduction =
21 21  
22 -== 1.1 What is LoRaWAN Smart Distance Detector ==
21 +== 1.1 What is LoRaWAN LiDAR ToF Distance Sensor ==
23 23  
24 24  
25 -The Dragino (% style="color:blue" %)**DS20L is a smart distance detector**(%%) base on long-range wireless LoRaWAN technology. It uses (% style="color:blue" %)**LiDAR sensor**(%%) to detect the distance between DS20L and object, then DS20L will send the distance data to the IoT Platform via LoRaWAN.
24 +The Dragino LDS12-LB is a (% style="color:blue" %)**LoRaWAN LiDAR ToF (Time of Flight) Distance Sensor**(%%) for Internet of Things solution. It is capable to measure the distance to an object as close as 10 centimeters (+/- 5cm up to 6m) and as far as 12 meters (+/-1% starting at 6m)!. The LiDAR probe uses laser induction technology for distance measurement.
26 26  
27 -DS20L allows users to send data and reach extremely long ranges via LoRaWAN. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current 
28 -consumption. It targets professional wireless sensor network applications such smart cities, building automation, and so on.
26 +The LDS12-LB can be applied to scenarios such as horizontal distance measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, etc.
29 29  
30 -DS20L has a (% style="color:blue" %)**built-in 2400mAh non-chargeable battery**(%%) for long-term use up to several years*. Users can also power DS20L with an external power source for (% style="color:blue" %)**continuous measuring and distance alarm / counting purposes.**
28 +It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
31 31  
32 -DS20L is fully compatible with (% style="color:blue" %)**LoRaWAN v1.0.3 Class A protocol**(%%), it can work with a standard LoRaWAN gateway.
30 +The LoRa wireless technology used in LDS12-LB 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.
33 33  
34 -DS20L supports (% style="color:blue" %)**Datalog feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
32 +LDS12-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
35 35  
36 -[[image:image-20231110091506-4.png||height="391" width="768"]]
34 +LDS12-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
37 37  
36 +Each LDS12-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
38 38  
38 +[[image:image-20230614162334-2.png||height="468" width="800"]]
39 +
40 +
39 39  == 1.2 ​Features ==
40 40  
41 41  
... ... @@ -43,8 +43,8 @@
43 43  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
44 44  * Ultra-low power consumption
45 45  * Laser technology for distance detection
46 -* Measure Distance: 0.1m~~12m
47 -* Accuracy :  ±5cm@(0.1-5m), ±1%@(5m-12m)
48 +* Measure Distance: 0.1m~~12m @ 90% Reflectivity
49 +* Accuracy :  ±5cm@(0.1-6m), ±1%@(6m-12m)
48 48  * Monitor Battery Level
49 49  * Support Bluetooth v5.1 and LoRaWAN remote configure
50 50  * Support wireless OTA update firmware
... ... @@ -67,8 +67,8 @@
67 67  * Measure Distance:
68 68  ** 0.1m ~~ 12m @ 90% Reflectivity
69 69  ** 0.1m ~~ 4m @ 10% Reflectivity
70 -* Accuracy : ±5cm@(0.1-5m), ±1%@(5m-12m)
71 -* Distance resolution : 1cm
72 +* Accuracy : ±5cm@(0.1-6m), ±1%@(6m-12m)
73 +* Distance resolution : 5mm
72 72  * Ambient light immunity : 70klux
73 73  * Enclosure rating : IP65
74 74  * Light source : LED
... ... @@ -97,28 +97,143 @@
97 97  * Sleep Mode: 5uA @ 3.3v
98 98  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
99 99  
100 -== 1.4 Applications ==
102 +== 1.4 Suitable Container & Liquid ==
101 101  
102 102  
103 -* Horizontal distance measurement
104 -* Parking management system
105 -* Object proximity and presence detection
106 -* Intelligent trash can management system
107 -* Robot obstacle avoidance
108 -* Automatic control
109 -* Sewer
105 +* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
106 +* Container shape is regular, and surface is smooth.
107 +* Container Thickness:
108 +** Pure metal material.  2~~8mm, best is 3~~5mm
109 +** Pure non metal material: <10 mm
110 +* Pure liquid without irregular deposition.
110 110  
111 111  (% style="display:none" %)
112 112  
113 -== 1.5 Sleep mode and working mode ==
114 +== 1.5 Install LDS12-LB ==
114 114  
115 115  
117 +(% style="color:blue" %)**Step 1**(%%):  ** Choose the installation point.**
118 +
119 +LDS12-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
120 +
121 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-3.png?rev=1.1||alt="image-20220615091045-3.png"]]
122 +
123 +
124 +(((
125 +(% style="color:blue" %)**Step 2**(%%):  **Polish the installation point.**
126 +)))
127 +
128 +(((
129 +For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth.
130 +)))
131 +
132 +[[image:image-20230613143052-5.png]]
133 +
134 +
135 +No polish needed if the container is shine metal surface without paint or non-metal container.
136 +
137 +[[image:image-20230613143125-6.png]]
138 +
139 +
140 +(((
141 +(% style="color:blue" %)**Step3:   **(%%)**Test the installation point.**
142 +)))
143 +
144 +(((
145 +Power on LDS12-LB, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
146 +)))
147 +
148 +(((
149 +It is necessary to put the coupling paste between the sensor and the container, otherwise LDS12-LB won't detect the liquid level.
150 +)))
151 +
152 +(((
153 +After paste the LDS12-LB well, power on LDS12-LB. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
154 +)))
155 +
156 +
157 +(((
158 +(% style="color:blue" %)**LED Status:**
159 +)))
160 +
161 +* (((
162 +**Onboard LED**: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
163 +)))
164 +
165 +* (((
166 +(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** always ON**(%%): Sensor is power on but doesn't detect liquid. There is problem in installation point.
167 +)))
168 +* (((
169 +(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
170 +)))
171 +
172 +(((
173 +LDS12-LB will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
174 +)))
175 +
176 +
177 +(((
178 +(% style="color:red" %)**Note :**(%%)** (% style="color:blue" %)Ultrasonic coupling paste(%%)**(% style="color:blue" %) (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
179 +)))
180 +
181 +
182 +(((
183 +(% style="color:blue" %)**Step4:   **(%%)**Install use Epoxy ab glue.**
184 +)))
185 +
186 +(((
187 +Prepare Eproxy AB glue.
188 +)))
189 +
190 +(((
191 +Put Eproxy AB glue in the sensor and press it hard on the container installation point.
192 +)))
193 +
194 +(((
195 +Reset LDS12-LB and see if the BLUE LED is slowly blinking.
196 +)))
197 +
198 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-8.png?width=341&height=203&rev=1.1||alt="image-20220615091045-8.png"]] [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-9.png?width=284&height=200&rev=1.1||alt="image-20220615091045-9.png"]]
199 +
200 +
201 +(((
202 +(% style="color:red" %)**Note :**
203 +
204 +(% style="color:red" %)**1:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
205 +)))
206 +
207 +(((
208 +(% style="color:red" %)**2:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
209 +)))
210 +
211 +
212 +== 1.6 Applications ==
213 +
214 +
215 +* Smart liquid control solution
216 +
217 +* Smart liquefied gas solution
218 +
219 +== 1.7 Precautions ==
220 +
221 +
222 +* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
223 +
224 +* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
225 +
226 +* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
227 +
228 +(% style="display:none" %)
229 +
230 +== 1.8 Sleep mode and working mode ==
231 +
232 +
116 116  (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
117 117  
118 118  (% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
119 119  
120 120  
121 -== 1.6 Button & LEDs ==
238 +== 1.9 Button & LEDs ==
122 122  
123 123  
124 124  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
... ... @@ -125,7 +125,7 @@
125 125  
126 126  
127 127  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
128 -|=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 225px;background-color:#4F81BD;color:white" %)**Action**
245 +|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**
129 129  |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
130 130  If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
131 131  Meanwhile, BLE module will be active and user can connect via BLE to configure device.
... ... @@ -137,7 +137,7 @@
137 137  )))
138 138  |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
139 139  
140 -== 1.7 BLE connection ==
257 +== 1.10 BLE connection ==
141 141  
142 142  
143 143  LDS12-LB support BLE remote configure.
... ... @@ -151,12 +151,12 @@
151 151  If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
152 152  
153 153  
154 -== 1.8 Pin Definitions ==
271 +== 1.11 Pin Definitions ==
155 155  
273 +[[image:image-20230523174230-1.png]]
156 156  
157 -[[image:image-20230805144259-1.png||height="413" width="741"]]
158 158  
159 -== 1.9 Mechanical ==
276 +== 1.12 Mechanical ==
160 160  
161 161  
162 162  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
... ... @@ -171,6 +171,7 @@
171 171  (% style="color:blue" %)**Probe Mechanical:**
172 172  
173 173  
291 +
174 174  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654827224480-952.png?rev=1.1||alt="1654827224480-952.png"]]
175 175  
176 176  
... ... @@ -190,7 +190,7 @@
190 190  
191 191  The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
192 192  
193 -[[image:image-20231110091447-3.png||height="383" width="752"]](% style="display:none" %)
311 +[[image:image-20230614162359-3.png||height="468" width="800"]](% style="display:none" %)
194 194  
195 195  
196 196  (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from LDS12-LB.
... ... @@ -234,118 +234,75 @@
234 234  After join success, it will start to upload messages to TTN and you can see the messages in the panel.
235 235  
236 236  
237 -== 2.3 ​Uplink Payload ==
355 +== 2.3  ​Uplink Payload ==
238 238  
239 -=== 2.3.1 Device Status, FPORT~=5 ===
240 240  
358 +(((
359 +LDS12-LB will uplink payload via LoRaWAN with below payload format: 
360 +)))
241 241  
242 -Users can use the downlink command(**0x26 01**) to ask LDS12-LB to send device configure detail, include device configure status. LDS12-LB will uplink a payload via FPort=5 to server.
362 +(((
363 +Uplink payload includes in total 8 bytes.
364 +)))
243 243  
244 -The Payload format is as below.
245 -
246 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
247 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
366 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
367 +|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
248 248  **Size(bytes)**
249 -)))|=(% style="width: 100px; background-color: #4F81BD;color:white;" %)**1**|=(% style="width: 100px; background-color: #4F81BD;color:white;" %)**2**|=(% style="background-color: #4F81BD;color:white; width: 100px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 100px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 50px;" %)**2**
250 -|(% style="width:62.5px" %)Value|(% style="width:110px" %)Sensor Model|(% style="width:48px" %)Firmware Version|(% style="width:94px" %)Frequency Band|(% style="width:91px" %)Sub-band|(% style="width:60px" %)BAT
369 +)))|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)1|=(% style="background-color:#D9E2F3;color:#0070C0" %)2|=(% style="background-color:#D9E2F3;color:#0070C0" %)**1**
370 +|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
371 +[[Distance>>||anchor="H2.3.2A0Distance"]]
372 +(unit: mm)
373 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
374 +[[Temperature (Optional )>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
375 +)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
251 251  
252 -Example parse in TTNv3
377 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/1654850511545-399.png?rev=1.1||alt="1654850511545-399.png"]]
253 253  
254 -[[image:image-20230805103904-1.png||height="131" width="711"]]
255 255  
256 -(% style="color:blue" %)**Sensor Model**(%%): For LDS12-LB, this value is 0x24
380 +=== 2.3.1  Battery Info ===
257 257  
258 -(% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
259 259  
260 -(% style="color:blue" %)**Frequency Band**:
383 +Check the battery voltage for LDS12-LB.
261 261  
262 -0x01: EU868
263 -
264 -0x02: US915
265 -
266 -0x03: IN865
267 -
268 -0x04: AU915
269 -
270 -0x05: KZ865
271 -
272 -0x06: RU864
273 -
274 -0x07: AS923
275 -
276 -0x08: AS923-1
277 -
278 -0x09: AS923-2
279 -
280 -0x0a: AS923-3
281 -
282 -0x0b: CN470
283 -
284 -0x0c: EU433
285 -
286 -0x0d: KR920
287 -
288 -0x0e: MA869
289 -
290 -(% style="color:blue" %)**Sub-Band**:
291 -
292 -AU915 and US915:value 0x00 ~~ 0x08
293 -
294 -CN470: value 0x0B ~~ 0x0C
295 -
296 -Other Bands: Always 0x00
297 -
298 -(% style="color:blue" %)**Battery Info**:
299 -
300 -Check the battery voltage.
301 -
302 302  Ex1: 0x0B45 = 2885mV
303 303  
304 304  Ex2: 0x0B49 = 2889mV
305 305  
306 306  
307 -=== 2.3.2 Uplink Payload, FPORT~=2 ===
390 +=== 2.3.2  Distance ===
308 308  
309 309  
310 310  (((
311 -LDS12-LB will send this uplink **after** Device Status once join the LoRaWAN network successfully. And LDS12-LB will:
394 +Get the distance. Flat object range 20mm - 2000mm.
395 +)))
312 312  
313 -periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
397 +(((
398 +For example, if the data you get from the register is **0x06 0x05**, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
314 314  
315 -Uplink Payload totals 11 bytes.
400 +(% style="color:blue" %)**0605(H) = 1541 (D) = 1541 mm.**
316 316  )))
317 317  
318 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
319 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
320 -**Size(bytes)**
321 -)))|=(% style="width: 30px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD;color:white; width: 80px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**
322 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
323 -[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
324 -)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
325 -[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
326 -)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
327 -[[Message Type>>||anchor="HMessageType"]]
328 -)))
403 +* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
329 329  
330 -[[image:image-20230805104104-2.png||height="136" width="754"]]
405 +* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
331 331  
407 +=== 2.3.3  Interrupt Pin ===
332 332  
333 -==== (% style="color:blue" %)**Battery Info**(%%) ====
334 334  
410 +This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
335 335  
336 -Check the battery voltage for LDS12-LB.
412 +**Example:**
337 337  
338 -Ex1: 0x0B45 = 2885mV
414 +0x00: Normal uplink packet.
339 339  
340 -Ex2: 0x0B49 = 2889mV
416 +0x01: Interrupt Uplink Packet.
341 341  
342 342  
343 -==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
419 +=== 2.3.4  DS18B20 Temperature sensor ===
344 344  
345 345  
346 346  This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
347 347  
348 -
349 349  **Example**:
350 350  
351 351  If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
... ... @@ -353,191 +353,42 @@
353 353  If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
354 354  
355 355  
356 -==== (% style="color:blue" %)**Distance**(%%) ====
431 +=== 2.3.5  Sensor Flag ===
357 357  
358 358  
359 -Represents the distance value of the measurement output, the default unit is cm, and the value range parsed as a decimal number is 0-1200. In actual use, when the signal strength value Strength.
360 -
361 -
362 -**Example**:
363 -
364 -If the data you get from the register is 0x0B 0xEA, the distance between the sensor and the measured object is 0BEA(H) = 3050 (D)/10 = 305cm.
365 -
366 -
367 -==== (% style="color:blue" %)**Distance signal strength**(%%) ====
368 -
369 -
370 -Refers to the signal strength, the default output value will be between 0-65535. When the distance measurement gear is fixed, the farther the distance measurement is, the lower the signal strength; the lower the target reflectivity, the lower the signal strength. When Strength is greater than 100 and not equal to 65535, the measured value of Dist is considered credible.
371 -
372 -
373 -**Example**:
374 -
375 -If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
376 -
377 -Customers can judge whether they need to adjust the environment based on the signal strength.
378 -
379 -
380 -**1) When the sensor detects valid data:**
381 -
382 -[[image:image-20230805155335-1.png||height="145" width="724"]]
383 -
384 -
385 -**2) When the sensor detects invalid data:**
386 -
387 -[[image:image-20230805155428-2.png||height="139" width="726"]]
388 -
389 -
390 -**3) When the sensor is not connected:**
391 -
392 -[[image:image-20230805155515-3.png||height="143" width="725"]]
393 -
394 -
395 -==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
396 -
397 -
398 -This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
399 -
400 -Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]] of GPIO_EXTI .
401 -
402 -**Example:**
403 -
404 -If byte[0]&0x01=0x00 : Normal uplink packet.
405 -
406 -If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
407 -
408 -
409 -==== (% style="color:blue" %)**LiDAR temp**(%%) ====
410 -
411 -
412 -Characterize the internal temperature value of the sensor.
413 -
414 -**Example: **
415 -If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
416 -If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
417 -
418 -
419 -==== (% style="color:blue" %)**Message Type**(%%) ====
420 -
421 -
422 422  (((
423 -For a normal uplink payload, the message type is always 0x01.
435 +0x01: Detect Ultrasonic Sensor
424 424  )))
425 425  
426 426  (((
427 -Valid Message Type:
439 +0x00: No Ultrasonic Sensor
428 428  )))
429 429  
430 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
431 -|=(% style="width: 161px;background-color:#4F81BD;color:white" %)**Message Type Code**|=(% style="width: 164px;background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 174px;background-color:#4F81BD;color:white" %)**Payload**
432 -|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
433 -|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
434 434  
435 -[[image:image-20230805150315-4.png||height="233" width="723"]]
443 +=== 2.3.6  Decode payload in The Things Network ===
436 436  
437 437  
438 -=== 2.3.3 Historical measuring distance, FPORT~=3 ===
446 +While using TTN network, you can add the payload format to decode the payload.
439 439  
448 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654850829385-439.png?rev=1.1||alt="1654850829385-439.png"]]
440 440  
441 -LDS12-LB stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
450 +The payload decoder function for TTN V3 is here:
442 442  
443 -The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
444 -
445 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
446 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
447 -**Size(bytes)**
448 -)))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)1|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD; color: white; width: 85px;" %)**1**|=(% style="background-color: #4F81BD; color: white; width: 85px;" %)4
449 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
450 -Reserve(0xFF)
451 -)))|Distance|Distance signal strength|(% style="width:88px" %)(((
452 -LiDAR temp
453 -)))|(% style="width:85px" %)Unix TimeStamp
454 -
455 -**Interrupt flag & Interrupt level:**
456 -
457 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
458 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
459 -**Size(bit)**
460 -)))|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit7**|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit6**|=(% style="width: 60px;background-color:#4F81BD;color:white" %)**[bit5:bit2]**|=(% style="width: 90px; background-color: #4F81BD; color: white;" %)**bit1**|=(% style="background-color: #4F81BD; color: white; width: 90px;" %)**bit0**
461 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)No ACK message|(% style="width:62.5px" %)Poll Message Flag|Reserve|(% style="width:91px" %)Interrupt level|(% style="width:88px" %)(((
462 -Interrupt flag
452 +(((
453 +LDS12-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
463 463  )))
464 464  
465 -* (((
466 -Each data entry is 11 bytes and has the same structure as [[Uplink Payload>>||anchor="H2.3.2UplinkPayload2CFPORT3D2"]], to save airtime and battery, LDS12-LB will send max bytes according to the current DR and Frequency bands.
467 -)))
468 468  
469 -For example, in the US915 band, the max payload for different DR is:
457 +== 2.4  Uplink Interval ==
470 470  
471 -**a) DR0:** max is 11 bytes so one entry of data
472 472  
473 -**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
460 +The LDS12-LB 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>>||anchor="H3.3.1SetTransmitIntervalTime"]]
474 474  
475 -**c) DR2:** total payload includes 11 entries of data
476 476  
477 -**d) DR3:** total payload includes 22 entries of data.
463 +== 2.5  ​Show Data in DataCake IoT Server ==
478 478  
479 -If LDS12-LB doesn't have any data in the polling time. It will uplink 11 bytes of 0
480 480  
481 -
482 -**Downlink:**
483 -
484 -0x31 64 CC 68 0C 64 CC 69 74 05
485 -
486 -[[image:image-20230805144936-2.png||height="113" width="746"]]
487 -
488 -**Uplink:**
489 -
490 -43 FF 0E 10 00 B0 1E 64 CC 68 0C 40 FF 0D DE 00 A8 1E 64 CC 68 29 40 FF 09 92 00 D3 1E 64 CC 68 65 40 FF 02 3A 02 BC 1E 64 CC 68 A1 41 FF 0E 1A 00 A4 1E 64 CC 68 C0 40 FF 0D 2A 00 B8 1E 64 CC 68 E8 40 FF 00 C8 11 6A 1E 64 CC 69 24 40 FF 0E 24 00 AD 1E 64 CC 69 6D
491 -
492 -
493 -**Parsed Value:**
494 -
495 -[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
496 -
497 -
498 -[360,176,30,High,True,2023-08-04 02:53:00],
499 -
500 -[355,168,30,Low,False,2023-08-04 02:53:29],
501 -
502 -[245,211,30,Low,False,2023-08-04 02:54:29],
503 -
504 -[57,700,30,Low,False,2023-08-04 02:55:29],
505 -
506 -[361,164,30,Low,True,2023-08-04 02:56:00],
507 -
508 -[337,184,30,Low,False,2023-08-04 02:56:40],
509 -
510 -[20,4458,30,Low,False,2023-08-04 02:57:40],
511 -
512 -[362,173,30,Low,False,2023-08-04 02:58:53],
513 -
514 -
515 -**History read from serial port：**
516 -
517 -[[image:image-20230805145056-3.png]]
518 -
519 -
520 -=== 2.3.4 Decode payload in The Things Network ===
521 -
522 -
523 -While using TTN network, you can add the payload format to decode the payload.
524 -
525 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592762713-715.png?rev=1.1||alt="1654592762713-715.png"]]
526 -
527 -
528 528  (((
529 -The payload decoder function for TTN is here:
530 -)))
531 -
532 -(((
533 -LDS12-LB TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
534 -)))
535 -
536 -
537 -== 2.4 ​Show Data in DataCake IoT Server ==
538 -
539 -
540 -(((
541 541  [[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
542 542  )))
543 543  
... ... @@ -569,13 +569,13 @@
569 569  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610165129-11.png?width=1088&height=595&rev=1.1||alt="image-20220610165129-11.png"]]
570 570  
571 571  
572 -== 2.5 Datalog Feature ==
498 +== 2.6 Datalog Feature ==
573 573  
574 574  
575 575  Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LDS12-LB will store the reading for future retrieving purposes.
576 576  
577 577  
578 -=== 2.5.1 Ways to get datalog via LoRaWAN ===
504 +=== 2.6.1 Ways to get datalog via LoRaWAN ===
579 579  
580 580  
581 581  Set PNACKMD=1, LDS12-LB will wait for ACK for every uplink, when there is no LoRaWAN network,LDS12-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
... ... @@ -592,7 +592,7 @@
592 592  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220703111700-2.png?width=1119&height=381&rev=1.1||alt="图片-20220703111700-2.png" height="381" width="1119"]]
593 593  
594 594  
595 -=== 2.5.2 Unix TimeStamp ===
521 +=== 2.6.2 Unix TimeStamp ===
596 596  
597 597  
598 598  LDS12-LB uses Unix TimeStamp format based on
... ... @@ -609,7 +609,7 @@
609 609  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
610 610  
611 611  
612 -=== 2.5.3 Set Device Time ===
538 +=== 2.6.3 Set Device Time ===
613 613  
614 614  
615 615  User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
... ... @@ -619,13 +619,13 @@
619 619  (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
620 620  
621 621  
622 -=== 2.5.4 Poll sensor value ===
548 +=== 2.6.4 Poll sensor value ===
623 623  
624 624  
625 625  Users can poll sensor values based on timestamps. Below is the downlink command.
626 626  
627 627  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
628 -|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
554 +|(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
629 629  |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
630 630  |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
631 631  
... ... @@ -646,7 +646,7 @@
646 646  )))
647 647  
648 648  
649 -== 2.6 Frequency Plans ==
575 +== 2.7 Frequency Plans ==
650 650  
651 651  
652 652  The LDS12-LB 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.
... ... @@ -654,90 +654,6 @@
654 654  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
655 655  
656 656  
657 -== 2.7 LiDAR ToF Measurement ==
658 -
659 -=== 2.7.1 Principle of Distance Measurement ===
660 -
661 -
662 -The LiDAR probe is based on TOF, namely, Time of Flight principle. To be specific, the product emits modulation wave of near infrared ray on a periodic basis, which will be reflected after contacting object. The product obtains the time of flight by measuring round-trip phase difference and then calculates relative range between the product and the detection object, as shown below.
663 -
664 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831757579-263.png?rev=1.1||alt="1654831757579-263.png"]]
665 -
666 -
667 -=== 2.7.2 Distance Measurement Characteristics ===
668 -
669 -
670 -With optimization of light path and algorithm, The LiDAR probe has minimized influence from external environment on distance measurement performance. Despite that, the range of distance measurement may still be affected by the environment illumination intensity and the reflectivity of detection object. As shown in below:
671 -
672 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831774373-275.png?rev=1.1||alt="1654831774373-275.png"]]
673 -
674 -
675 -(((
676 -(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
677 -)))
678 -
679 -(((
680 -(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
681 -)))
682 -
683 -(((
684 -(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
685 -)))
686 -
687 -
688 -(((
689 -Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows:
690 -)))
691 -
692 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831797521-720.png?rev=1.1||alt="1654831797521-720.png"]]
693 -
694 -(((
695 -In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
696 -)))
697 -
698 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831810009-716.png?rev=1.1||alt="1654831810009-716.png"]]
699 -
700 -(((
701 -If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error.
702 -)))
703 -
704 -
705 -=== 2.7.3 Notice of usage ===
706 -
707 -
708 -Possible invalid /wrong reading for LiDAR ToF tech:
709 -
710 -* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
711 -* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might be wrong.
712 -* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
713 -* The sensor window is made by Acrylic. Don't touch it with alcohol material. This will destroy the sensor window.
714 -
715 -=== 2.7.4  Reflectivity of different objects ===
716 -
717 -
718 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:379px" %)
719 -|=(% style="width: 54px;background-color:#4F81BD;color:white" %)Item|=(% style="width: 231px;background-color:#4F81BD;color:white" %)Material|=(% style="width: 94px;background-color:#4F81BD;color:white" %)Relectivity
720 -|(% style="width:53px" %)1|(% style="width:229px" %)Black foam rubber|(% style="width:93px" %)2.4%
721 -|(% style="width:53px" %)2|(% style="width:229px" %)Black fabric|(% style="width:93px" %)3%
722 -|(% style="width:53px" %)3|(% style="width:229px" %)Black rubber|(% style="width:93px" %)4%
723 -|(% style="width:53px" %)4|(% style="width:229px" %)Coal (different types of coal)|(% style="width:93px" %)4~~8%
724 -|(% style="width:53px" %)5|(% style="width:229px" %)Black car paint|(% style="width:93px" %)5%
725 -|(% style="width:53px" %)6|(% style="width:229px" %)Black Jam|(% style="width:93px" %)10%
726 -|(% style="width:53px" %)7|(% style="width:229px" %)Opaque black plastic|(% style="width:93px" %)14%
727 -|(% style="width:53px" %)8|(% style="width:229px" %)Clean rough board|(% style="width:93px" %)20%
728 -|(% style="width:53px" %)9|(% style="width:229px" %)Translucent plastic bottle|(% style="width:93px" %)62%
729 -|(% style="width:53px" %)10|(% style="width:229px" %)Carton cardboard|(% style="width:93px" %)68%
730 -|(% style="width:53px" %)11|(% style="width:229px" %)Clean pine|(% style="width:93px" %)70%
731 -|(% style="width:53px" %)12|(% style="width:229px" %)Opaque white plastic|(% style="width:93px" %)87%
732 -|(% style="width:53px" %)13|(% style="width:229px" %)White Jam|(% style="width:93px" %)90%
733 -|(% style="width:53px" %)14|(% style="width:229px" %)Kodak Standard Whiteboard|(% style="width:93px" %)100%
734 -|(% style="width:53px" %)15|(% style="width:229px" %)(((
735 -Unpolished white metal surface
736 -)))|(% style="width:93px" %)130%
737 -|(% style="width:53px" %)16|(% style="width:229px" %)Glossy light metal surface|(% style="width:93px" %)150%
738 -|(% style="width:53px" %)17|(% style="width:229px" %)stainless steel|(% style="width:93px" %)200%
739 -|(% style="width:53px" %)18|(% style="width:229px" %)Reflector plate, reflective tape|(% style="width:93px" %)>300%
740 -
741 741  = 3. Configure LDS12-LB =
742 742  
743 743  == 3.1 Configure Methods ==
... ... @@ -783,7 +783,7 @@
783 783  )))
784 784  
785 785  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
786 -|=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 137px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
628 +|=(% style="width: 156px;background-color:#D9E2F3; color:#0070c0" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3; color:#0070c0" %)**Function**|=(% style="background-color:#D9E2F3; color:#0070c0" %)**Response**
787 787  |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
788 788  30000
789 789  OK
... ... @@ -819,24 +819,20 @@
819 819  === 3.3.2 Set Interrupt Mode ===
820 820  
821 821  
822 -Feature, Set Interrupt mode for pin of GPIO_EXTI.
664 +Feature, Set Interrupt mode for PA8 of pin.
823 823  
824 -When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
666 +When AT+INTMOD=0 is set, PA8 is used as a digital input port.
825 825  
826 826  (% style="color:blue" %)**AT Command: AT+INTMOD**
827 827  
828 828  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
829 -|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
671 +|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**
830 830  |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
831 831  0
832 832  OK
833 833  the mode is 0 =Disable Interrupt
834 834  )))
835 -|(% style="width:154px" %)(((
836 -AT+INTMOD=2
837 -
838 -(default)
839 -)))|(% style="width:196px" %)(((
677 +|(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
840 840  Set Transmit Interval
841 841  0. (Disable Interrupt),
842 842  ~1. (Trigger by rising and falling edge)
... ... @@ -854,35 +854,6 @@
854 854  
855 855  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
856 856  
857 -=== 3.3.3  Set Power Output Duration ===
858 -
859 -Control the output duration 3V3(pin of VBAT_OUT) . Before each sampling, device will
860 -
861 -~1. first enable the power output to external sensor,
862 -
863 -2. keep it on as per duration, read sensor value and construct uplink payload
864 -
865 -3. final, close the power output.
866 -
867 -(% style="color:blue" %)**AT Command: AT+3V3T**
868 -
869 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
870 -|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
871 -|(% style="width:154px" %)AT+3V3T=?|(% style="width:196px" %)Show 3V3 open time.|(% style="width:157px" %)0 (default)
872 -OK
873 -|(% style="width:154px" %)AT+3V3T=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
874 -|(% style="width:154px" %)AT+3V3T=0|(% style="width:196px" %)Always turn on the power supply of 3V3 pin.|(% style="width:157px" %)OK
875 -|(% style="width:154px" %)AT+3V3T=65535|(% style="width:196px" %)Always turn off the power supply of 3V3 pin.|(% style="width:157px" %)OK
876 -
877 -(% style="color:blue" %)**Downlink Command: 0x07**(%%)
878 -Format: Command Code (0x07) followed by 3 bytes.
879 -
880 -The first byte is 01,the second and third bytes are the time to turn on.
881 -
882 -* Example 1: Downlink Payload: 07 01 00 00  **~-~-->**  AT+3V3T=0
883 -* Example 2: Downlink Payload: 07 01 01 F4  **~-~-->**  AT+3V3T=500
884 -* Example 3: Downlink Payload: 07 01 FF FF  **~-~-->**  AT+3V3T=65535
885 -
886 886  = 4. Battery & Power Consumption =
887 887  
888 888  
... ... @@ -903,7 +903,7 @@
903 903  
904 904  * Fix bugs.
905 905  
906 -Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/w1p7ukjrx49e62r/AAB3uCNCt-koYUvMkZUPBRSca?dl=0]]**
715 +Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ph4uyz0rchflrnw/AADr1f_5Sg30804NItpfOQbla?dl=0]]**
907 907  
908 908  Methods to Update Firmware:
909 909  
... ... @@ -931,11 +931,11 @@
931 931  
932 932  
933 933  (((
934 -(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance. (such as glass and water, etc.)
743 +(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance (such as glass and water, etc.)
935 935  )))
936 936  
937 937  (((
938 -(% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
747 +Troubleshooting: Please avoid use of this product under such circumstance in practice.
939 939  )))
940 940  
941 941  
... ... @@ -944,7 +944,7 @@
944 944  )))
945 945  
946 946  (((
947 -(% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.
756 +Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
948 948  )))
949 949  
950 950  
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