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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 116.4
edited by Xiaoling
on 2023/11/13 10:38
Change comment: There is no comment for this version
To version 171.3
edited by Mengting Qiu
on 2023/12/12 11:48
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
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1 -XWiki.Xiaoling
1 +XWiki.ting
Content
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8 8  
9 9  
10 10  
11 -**Table of Contents：**
11 +**Table of Contents:(% style="display:none" %) (%%)**
12 12  
13 13  {{toc/}}
14 14  
... ... @@ -47,10 +47,8 @@
47 47  * Firmware upgradable via program port or LoRa protocol
48 48  * Built-in 2400mAh battery or power by external power source
49 49  
50 -
51 51  == 1.3 Specification ==
52 52  
53 -
54 54  (% style="color:#037691" %)**LiDAR Sensor:**
55 55  
56 56  * Operation Temperature: -40 ~~ 80 °C
... ... @@ -61,15 +61,12 @@
61 61  * ToF FoV: ±9°, Total 18°
62 62  * Light source: VCSEL
63 63  
64 -
65 -
66 -
67 67  == 1.4 Power Consumption ==
68 68  
69 69  
70 70  (% style="color:#037691" %)**Battery Power Mode:**
71 71  
72 -* Idle: 0.003 mA @ 3.3v
67 +* Idle: 3uA @ 3.3v
73 73  * Max : 360 mA
74 74  
75 75  (% style="color:#037691" %)**Continuously mode**:
... ... @@ -77,9 +77,21 @@
77 77  * Idle: 21 mA @ 3.3v
78 78  * Max : 360 mA
79 79  
75 +== 1.5 Use Case ==
80 80  
77 +(% class="mark" %)**Regular Distance Detect**
81 81  
79 +[[image:image-20231211220922-1.png||height="352" width="605"]]
82 82  
81 +
82 +(% class="mark" %)**Counting / Alarm**
83 +
84 +[[image:image-20231211221253-2.png]]
85 +
86 +
87 +[[image:image-20231211221436-3.png]]
88 +
89 +
83 83  = 2. Configure DS20L to connect to LoRaWAN network =
84 84  
85 85  == 2.1 How it works ==
... ... @@ -98,7 +98,7 @@
98 98  
99 99  [[image:image-20231110102635-5.png||height="402" width="807"]](% style="display:none" %)
100 100  
101 -(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DS20L.
108 +=== Step 1: Create a device in TTN with the OTAA keys from DS20L. ===
102 102  
103 103  Each DS20L is shipped with a sticker with the default device EUI as below:
104 104  
... ... @@ -105,40 +105,36 @@
105 105  [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
106 106  
107 107  
108 -You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
115 +You can enter this key in the LoRaWAN Server portal. Below is TTN V3 screenshot:
109 109  
110 110  
111 111  (% style="color:blue" %)**Register the device**
112 112  
113 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
120 +[[image:image-20231207144600-2.png||height="703" width="756"]]
114 114  
115 115  
116 -(% style="color:blue" %)**Add APP EUI and DEV EUI**
123 +(% style="color:blue" %)**Add DevEUI and AppKey**
117 117  
118 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
125 +[[image:image-20231207145121-5.png||height="540" width="756"]]
119 119  
120 120  
121 -(% style="color:blue" %)**Add APP EUI in the application**
122 122  
129 +=== Step 2: Activate DS20L ===
123 123  
124 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
131 +[[image:image-20231128133704-1.png||height="189" width="441"]]
125 125  
133 +Press the button for 5 seconds to activate the DS20L.
126 126  
127 -(% style="color:blue" %)**Add APP KEY**
135 +The switch is switched to (% style="color:blue" %)**E** (%%)and the external power supply is used.
128 128  
129 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
137 +The switch is switched to (% style="color:blue" %)**I** (%%)and DS20L will be power by the built-in battery.
130 130  
131 -
132 -(% style="color:blue" %)**Step 2:**(%%) Activate on DS20L
133 -
134 -
135 -Press the button for 5 seconds to activate the DS20L.
136 -
137 137  (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
138 138  
139 139  After join success, it will start to upload messages to TTN and you can see the messages in the panel.
140 140  
141 141  
144 +
142 142  == 2.3 ​Uplink Payload ==
143 143  
144 144  === 2.3.1 Device Status, FPORT~=5 ===
... ... @@ -156,9 +156,9 @@
156 156  
157 157  Example parse in TTNv3
158 158  
159 -[[image:image-20230805103904-1.png||height="131" width="711"]]
162 +[[image:image-20231206151412-3.png||height="179" width="1070"]]
160 160  
161 -(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x24
164 +(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x21
162 162  
163 163  (% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
164 164  
... ... @@ -212,338 +212,348 @@
212 212  === 2.3.2 Uplink Payload, FPORT~=2 ===
213 213  
214 214  
215 -(((
216 -DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
218 +==== (% style="color:red" %)**AT+MOD~=1**(%%) ====
217 217  
218 -periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
220 +Regularly detect distance and report. When the distance exceeds the limit, the alarm flag is set to 1, and the report can be triggered by external interrupts.
219 219  
220 -Uplink Payload totals 11 bytes.
221 -)))
222 +**Uplink Payload totals 10 bytes.**
222 222  
223 223  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
224 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
225 -**Size(bytes)**
226 -)))|=(% 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**
227 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
228 -[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
229 -)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
230 -[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
231 -)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
232 -[[Message Type>>||anchor="HMessageType"]]
233 -)))
225 +|(% style="background-color:#4f81bd; color:White; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:White; width:30px" %)**2**|(% style="background-color:#4f81bd; color:White; width:130px" %)**1**|(% style="background-color:#4f81bd; color:White; width:70px" %)**2**|(% style="background-color:#4f81bd; color:White; width:100px" %)**1**|(% style="background-color:#4f81bd; color:White; width:120px" %)**4**
226 +|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:176px" %)MOD+ Alarm+ Interrupt|(% style="width:74px" %)Distance|(% style="width:100px" %)Sensor State|(% style="width:119px" %)Interrupt Count
234 234  
235 -[[image:image-20230805104104-2.png||height="136" width="754"]]
228 +**MOD+ Alarm+ Interrupt:**
236 236  
230 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:400px" %)
231 +|(% style="background-color:#4f81bd; color:White; width:50px" %)**Size(bit)**|(% style="background-color:#4f81bd; color:White; width:60px" %)**[bit7:bit6]**|(% style="background-color:#4f81bd; color:White; width:70px" %)**bit5**|(% style="background-color:#4f81bd; color:White; width:120px" %)**bit4**
232 +|(% style="width:80px" %)Value|(% style="width:80px" %)MOD|(% style="width:89px" %)Digital Interrupt
233 + |(% style="width:167px" %)(((
234 +Distance Alarm
237 237  
238 -==== (% style="color:blue" %)**Battery Info**(%%) ====
236 +0: No Alarm;
239 239  
238 +1: Alarm
239 +)))
240 240  
241 -Check the battery voltage for DS20L.
241 +Example parse in TTNv3
242 242  
243 -Ex1: 0x0B45 = 2885mV
243 +[[image:image-20231209152917-1.png||height="300" width="1172"]]
244 244  
245 -Ex2: 0x0B49 = 2889mV
245 +(% style="color:blue" %)**Battery Info:**
246 246  
247 +Check the battery voltage for DS20L
247 247  
248 -==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
249 +Ex1: 0x0E10 = 3600mV
249 249  
250 250  
251 -This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
252 +(% style="color:blue" %)**MOD & Alarm & Interrupt:**
252 252  
254 +(% style="color:red" %)**MOD:**
253 253  
254 -**Example**:
256 +**Example: ** (0x60>>6) & 0x3f =1
255 255  
256 -If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
258 +**0x01:**  Regularly detect distance and report.
259 +**0x02: ** Uninterrupted measurement (external power supply).
257 257  
258 -If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
261 +(% style="color:red" %)**Alarm:**
259 259  
263 +When the detection distance exceeds the limit, the alarm flag is set to 1.
260 260  
261 -==== (% style="color:blue" %)**Distance**(%%) ====
265 +(% style="color:red" %)**Interrupt:**
262 262  
267 +Whether it is an external interrupt.
263 263  
264 -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.
265 265  
270 +(% style="color:blue" %)**Distance info:**
266 266  
267 267  **Example**:
268 268  
269 -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.
274 +If payload is: 0708H: distance = 0708H = 1800 mm
270 270  
271 271  
272 -==== (% style="color:blue" %)**Distance signal strength**(%%) ====
277 +(% style="color:blue" %)**Sensor State:**
273 273  
279 +Ex1: 0x00: Distance Reading is valid
274 274  
275 -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.
281 +Ex2: 0x0x: Distance Reading is invalid
276 276  
277 277  
278 -**Example**:
284 +(% style="color:blue" %)**Interrupt Count:**
279 279  
280 -If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
286 +If payload is:000007D0H: count = 07D0H =2000
281 281  
282 -Customers can judge whether they need to adjust the environment based on the signal strength.
283 283  
284 284  
285 -**1) When the sensor detects valid data:**
290 +==== (% style="color:red" %)**AT+MOD~=2**(%%)** ** ====
286 286  
287 -[[image:image-20230805155335-1.png||height="145" width="724"]]
288 288  
293 +The power consumption of uninterrupted measurement is high, and the device needs to use external power supply.(The switch is switched to E and the external power supply is used.)
289 289  
290 -**2) When the sensor detects invalid data:**
295 +[[image:image-20231128133704-1.png||height="189" width="441"]]
291 291  
292 -[[image:image-20230805155428-2.png||height="139" width="726"]]
293 293  
298 +* **Set over-limit alarm mode: AT+DOL=3,500,244,**(% style="color:red" %)0(%%)**,120**
294 294  
295 -**3) When the sensor is not connected:**
300 +(% class="wikigeneratedid" id="HUninterruptedmeasurement.Whenthedistanceexceedsthelimit2CtheoutputIOissethighandreportsarereportedeveryfiveminutes.Thetimecanbesetandpoweredbyanexternalpowersupply.UplinkPayloadtotals11bytes." %)
301 +Uninterrupted measurement. When the distance exceeds the limit, the output IO high, instant alarm.
296 296  
297 -[[image:image-20230805155515-3.png||height="143" width="725"]]
303 +(% class="wikigeneratedid" %)
304 +**Uplink Payload totals 9 bytes.**
298 298  
306 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:680px" %)
307 +|(% style="background-color:#4f81bd; color:white; width:70px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:40px" %)**2**|(% style="background-color:#4f81bd; color:white; width:130px" %)**1**|(% style="background-color:#4f81bd; color:white; width:130px" %)**2**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**
308 +|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:210px" %)MOD+ DO+ Alarm+ DO flag+ Limit flag|(% style="width:74px" %)Distance |(% style="width:100px" %)Upper limit|(% style="width:119px" %)Lower limit
299 299  
300 -==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
310 +**MOD+DO+ Alarm+ Do flag+ Limit flag:**
301 301  
312 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:680px" %)
313 +|(% style="background-color:#4f81bd; color:white; width:50px" %)**Size(bit)**|(% style="background-color:#4f81bd; color:white; width:60px" %)**[bit7:bit6]**|(% style="background-color:#4f81bd; color:white; width:90px" %)**bit5**|(% style="background-color:#4f81bd; color:white; width:90px" %)**bit4**|(% style="background-color:#4f81bd; color:white; width:120px" %)**bit3**|(% style="background-color:#4f81bd; color:white; width:100px" %)**[bit2:bit1:bit0]**
314 +|(% style="width:50px" %)Value|(% style="width:60px" %)MOD|(% style="width:89px" %)(((
315 +(((
316 +DO
317 +)))
302 302  
303 -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.
319 +(((
320 +0：Within limit
304 304  
305 -Note: The Internet Pin is a separate pin in the screw terminal. See pin mapping of GPIO_EXTI .
322 +1：Out of limit
323 +)))
324 +)))|(% style="width:73px" %)(((
325 +Alarm
306 306  
307 -**Example:**
327 +0: No Alarm;
308 308  
309 -If byte[0]&0x01=0x00 : Normal uplink packet.
329 +1: Alarm
330 +)))|(% style="width:150px" %)(((
331 +DO flag
310 310  
311 -If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
333 +0：the over-limit alarm mode
312 312  
335 +1：the person or object count mode
336 +)))|(% style="width:103px" %)Limit flag
337 +(0~~3)
313 313  
314 -==== (% style="color:blue" %)**LiDAR temp**(%%) ====
339 +Example parse in TTNv3
315 315  
341 +[[image:image-20231209171127-3.png||height="374" width="1209"]]
316 316  
317 -Characterize the internal temperature value of the sensor.
343 +(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
318 318  
319 -**Example: **
320 -If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
321 -If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
345 +(% style="color:red" %)**MOD:**
322 322  
347 +**Example: ** (0x60>>6) & 0x3f =1
323 323  
324 -==== (% style="color:blue" %)**Message Type**(%%) ====
349 +**0x01:**  Regularly detect distance and report.
350 +**0x02: ** Uninterrupted measurement (external power supply).
325 325  
352 +(% style="color:red" %)**Alarm:**
326 326  
327 -(((
328 -For a normal uplink payload, the message type is always 0x01.
329 -)))
354 +When the detection distance exceeds the limit, the alarm flag is set to 1.
330 330  
331 -(((
332 -Valid Message Type:
333 -)))
356 +(% style="color:red" %)**DO:**
334 334  
335 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
336 -|=(% 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**
337 -|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
338 -|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
358 +Shows the DO pin status, while there is alarm trigger, The DO pin will be set to high (3.3v), It will be set to 0 low level when there is no alarm.
339 339  
340 -[[image:image-20230805150315-4.png||height="233" width="723"]]
360 +(% style="color:red" %)**Threshold Flag for Alarm:**
341 341  
362 +Mode for setting threshold: **0~~3**
342 342  
343 -=== 2.3.3 Historical measuring distance, FPORT~=3 ===
364 +**0:** Distance limit range is not enabled, alarm:0.
344 344  
366 +**1:** Trigger Alarm if distance exceed the range between lower and upper.
345 345  
346 -DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
368 +**2:** Trigger Alarm if distance smaller than the upper limit.
347 347  
348 -The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
370 +**3: **Trigger Alarm if distance bigger than the lower limit .
349 349  
350 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
351 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
352 -**Size(bytes)**
353 -)))|=(% 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
354 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
355 -Reserve(0xFF)
356 -)))|Distance|Distance signal strength|(% style="width:88px" %)(((
357 -LiDAR temp
358 -)))|(% style="width:85px" %)Unix TimeStamp
359 359  
360 -**Interrupt flag & Interrupt level:**
373 +(% style="color:blue" %)**Distance:**
361 361  
362 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
363 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
364 -**Size(bit)**
365 -)))|=(% 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**
366 -|(% 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" %)(((
367 -Interrupt flag
368 -)))
375 + Actual sampling distance values.
369 369  
370 -* (((
371 -Each data entry is 11 bytes and has the same structure as [[Uplink Payload>>||anchor="H2.3.2UplinkPayload2CFPORT3D2"]], to save airtime and battery, DS20L will send max bytes according to the current DR and Frequency bands.
372 -)))
377 +**Example:**
373 373  
374 -For example, in the US915 band, the max payload for different DR is:
379 +**AT+DOL=1,500,244,**(% style="color:red" %)0(%%)**,120  **
375 375  
376 -**a) DR0:** max is 11 bytes so one entry of data
381 +The distance is detected every 120ms.
377 377  
378 -**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
383 +When the actual detection value is within the range of [244mm,500mm], the data is uploaded in the normal TDC time.
379 379  
380 -**c) DR2:** total payload includes 11 entries of data
385 +When the actual detection value is outside the range of [244mm,500mm], the uplink data will be immediately alerted.
381 381  
382 -**d) DR3:** total payload includes 22 entries of data.
387 +If payload is: 0708H: distance = 0708H = 1800 mm
383 383  
384 -If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
385 385  
390 +(% style="color:blue" %)**Upper limit:**
386 386  
387 -**Downlink:**
392 +Show the pre-set upper limit in Hex, Unit: mm.
388 388  
389 -0x31 64 CC 68 0C 64 CC 69 74 05
394 +Ex: 01F4(H)=500mm
390 390  
391 -[[image:image-20230805144936-2.png||height="113" width="746"]]
392 392  
393 -**Uplink:**
397 +(% style="color:blue" %)**Lower limit:**
394 394  
395 -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
399 +Show the pre-set lower limit in Hex, Unit: mm.
396 396  
401 +Ex: 0xF4(H)=244mm
397 397  
398 -**Parsed Value:**
399 399  
400 -[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
404 +* **Set the person or object count mode: AT+DOL=1,500,244,**(% style="color:red" %)1(%%)**,120**
401 401  
406 +Continuous measurement, detect and count people or things passing by in distance limit mode.
402 402  
403 -[360,176,30,High,True,2023-08-04 02:53:00],
408 +**Uplink Payload totals 11 bytes.**
404 404  
405 -[355,168,30,Low,False,2023-08-04 02:53:29],
410 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:680px" %)
411 +|(% style="background-color:#4f81bd; color:white; width:70px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:40px" %)**2**|(% style="background-color:#4f81bd; color:white; width:130px" %)**1**|(% style="background-color:#4f81bd; color:white; width:130px" %)**4**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**
412 +|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:210px" %)MOD+ DO+ Alarm+ DO flag+ Limit flag|(% style="width:176px" %)Distance limit alarm count|(% style="width:100px" %)Upper limit|(% style="width:119px" %)Lower limit
406 406  
407 -[245,211,30,Low,False,2023-08-04 02:54:29],
414 +**MOD+DO+ Alarm+ Do flag+ Limit flag:**
408 408  
409 -[57,700,30,Low,False,2023-08-04 02:55:29],
416 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:680px" %)
417 +|(% style="background-color:#4f81bd; color:white; width:50px" %)**Size(bit)**|(% style="background-color:#4f81bd; color:white; width:60px" %)**[bit7:bit6]**|(% style="background-color:#4f81bd; color:white; width:90px" %)**bit5**|(% style="background-color:#4f81bd; color:white; width:90px" %)**bit4**|(% style="background-color:#4f81bd; color:white; width:120px" %)**bit3**|(% style="background-color:#4f81bd; color:white; width:100px" %)**[bit2:bit1:bit0]**
418 +|(% style="width:50px" %)Value|(% style="width:60px" %)MOD|(% style="width:89px" %)(((
419 +(((
420 +DO
421 +)))
410 410  
411 -[361,164,30,Low,True,2023-08-04 02:56:00],
423 +(((
424 +0：Within limit
412 412  
413 -[337,184,30,Low,False,2023-08-04 02:56:40],
426 +1：Out of limit
427 +)))
428 +)))|(% style="width:73px" %)(((
429 +Alarm
414 414  
415 -[20,4458,30,Low,False,2023-08-04 02:57:40],
431 +0: No Alarm;
416 416  
417 -[362,173,30,Low,False,2023-08-04 02:58:53],
433 +1: Alarm
434 +)))|(% style="width:150px" %)(((
435 +DO flag
418 418  
437 +0：the over-limit alarm mode
419 419  
420 -**History read from serial port：**
439 +1：the person or object count mode
440 +)))|(% style="width:103px" %)Limit flag
441 +(0~~3)
421 421  
422 -[[image:image-20230805145056-3.png]]
443 +Example parse in TTNv3
423 423  
445 +[[image:image-20231209173457-5.png||height="277" width="1098"]]
424 424  
425 -=== 2.3.4 Decode payload in The Things Network ===
447 +(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
426 426  
449 +(% style="color:red" %)**MOD:**
427 427  
428 -While using TTN network, you can add the payload format to decode the payload.
451 +**Example: ** (0x60>>6) & 0x3f =1
429 429  
430 -[[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"]]
453 +**0x01:**  Regularly detect distance and report.
454 +**0x02: ** Uninterrupted measurement (external power supply).
431 431  
456 +(% style="color:red" %)**Alarm:**
432 432  
433 -(((
434 -The payload decoder function for TTN is here:
435 -)))
458 +When the detection distance exceeds the limit, the alarm flag is set to 1.
436 436  
437 -(((
438 -DS20L TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
439 -)))
460 +(% style="color:red" %)**Do:**
440 440  
462 +Shows the DO pin status, while there is alarm trigger, The DO pin will be set to high (3.3v), It will be set to 0 low level when there is no alarm.
441 441  
442 -== 2.4 ​Show Data in DataCake IoT Server ==
464 +(% style="color:red" %)**Threshold Flag for Alarm:**
443 443  
466 +Mode for setting threshold: **0~~3**
444 444  
445 -(((
446 -[[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:
447 -)))
468 +**0:** does not use upper and lower limits
448 448  
470 +**1:** Use upper and lower limits
449 449  
450 -(((
451 -(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
452 -)))
472 +**2:** Less than the upper limit
453 453  
454 -(((
455 -(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
456 -)))
474 +**3: **Greater than the lower limit
457 457  
458 458  
459 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592790040-760.png?rev=1.1||alt="1654592790040-760.png"]]
477 +(% style="color:blue" %)**Distance limit alarm count:**
460 460  
479 +People or objects are collected and counted within a limited distance.
461 461  
462 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592800389-571.png?rev=1.1||alt="1654592800389-571.png"]]
481 +The detection of a stationary person or object at each sampling time will be repeated three times, and the fourth sampling count will be added by 1.
463 463  
483 +**Example:**
464 464  
465 -(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
485 +**AT+DOL=1,500,244,**(% style="color:red" %)1(%%)**,120   **
466 466  
467 -(% style="color:blue" %)**Step 4**(%%)**: Search the DS20L and add DevEUI.**
487 +People or objects passing within the distance range of [244mm,500mm] are detected and counted every 120ms.
468 468  
469 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654851029373-510.png?rev=1.1||alt="1654851029373-510.png"]]
489 +If payload is: 0x56H, interrupt count =0x56H =86
470 470  
471 471  
472 -After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
492 +(% style="color:blue" %)**Upper limit:**
473 473  
474 -[[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"]]
494 +Show the pre-set upper limit in Hex, Unit: mm.
475 475  
496 +Ex: 01F4(H)=500mm
476 476  
477 -== 2.5 Datalog Feature ==
478 478  
499 +(% style="color:blue" %)**Lower limit:**
479 479  
480 -Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DS20L will store the reading for future retrieving purposes.
501 +Show the pre-set lower limit in Hex, Unit: mm.
481 481  
503 +Ex: 0xF4(H)=244mm
482 482  
483 -=== 2.5.1 Ways to get datalog via LoRaWAN ===
484 484  
506 +== 2.4 Decode payload in The Things Network ==
485 485  
486 -Set PNACKMD=1, DS20L will wait for ACK for every uplink, when there is no LoRaWAN network, DS20L 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.
487 487  
488 -* (((
489 -a) DS20L will do an ACK check for data records sending to make sure every data arrive server.
490 -)))
491 -* (((
492 -b) DS20L will send data in **CONFIRMED Mode** when PNACKMD=1, but DS20L won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DS20L gets a ACK, DS20L will consider there is a network connection and resend all NONE-ACK messages.
493 -)))
509 +While using TTN network, you can add the payload format to decode the payload.
494 494  
495 -=== 2.5.2 Unix TimeStamp ===
511 +[[image:image-20231206143515-1.png||height="534" width="759"]]
496 496  
497 497  
498 -DS20L uses Unix TimeStamp format based on
514 +(((
515 +The payload decoder function for TTN is here:
516 +)))
499 499  
500 -[[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-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
518 +(((
519 +DS20L TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
520 +)))
501 501  
502 -User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
503 503  
504 -Below is the converter example
523 +== 2.5 ​Show Data in DataCake IoT Server ==
505 505  
506 -[[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-20220523001219-12.png?width=720&height=298&rev=1.1||alt="图片-20220523001219-12.png" height="298" width="720"]]
507 507  
526 +(((
527 +[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, onhuman-friendlya in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
528 +)))
508 508  
509 -So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
510 510  
531 +(((
532 +(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
533 +)))
511 511  
512 -=== 2.5.3 Set Device Time ===
535 +(((
536 +(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
537 +)))
513 513  
514 514  
515 -User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
540 +[[image:image-20231207153532-6.png||height="562" width="861"]]
516 516  
517 -Once DS20L Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DS20L. If DS20L fails to get the time from the server, DS20L will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
518 518  
519 -(% 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.**
543 +[[image:image-20231207155940-8.png]]
520 520  
545 +For more detailed instructions, refer to the following instructions: [[Welcome - Datacake Docs>>url:https://docs.datacake.de/]]
521 521  
522 -=== 2.5.4 Poll sensor value ===
547 +[[image:image-20231207160733-11.png||height="429" width="759"]]
523 523  
524 524  
525 -Users can poll sensor values based on timestamps. Below is the downlink command.
550 +(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
526 526  
527 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
528 -|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
529 -|(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
530 -|(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
552 +(% style="color:blue" %)**Step 4**(%%)**: Search the DS20L and add DevEUI.**
531 531  
532 -(((
533 -Timestamp start and Timestamp end-use Unix TimeStamp format as mentioned above. Devices will reply with all data logs during this period, using the uplink interval.
534 -)))
554 +[[image:image-20231207160343-10.png||height="665" width="705"]]
535 535  
536 -(((
537 -For example, downlink command [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/WebHome/image-20220518162852-1.png?rev=1.1||alt="image-20220518162852-1.png"]]
538 -)))
539 539  
540 -(((
541 -Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
542 -)))
557 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
543 543  
544 -(((
545 -Uplink Internal =5s，means DS20L will send one packet every 5s. range 5~~255s.
546 -)))
559 +[[image:image-20231129100454-2.png||height="501" width="928"]]
547 547  
548 548  
549 549  == 2.6 Frequency Plans ==
... ... @@ -554,7 +554,7 @@
554 554  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
555 555  
556 556  
557 -3. Configure DS20L
570 += 3. Configure DS20L =
558 558  
559 559  == 3.1 Configure Methods ==
560 560  
... ... @@ -561,12 +561,11 @@
561 561  
562 562  DS20L supports below configure method:
563 563  
564 -* AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
565 -
566 566  * AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
567 567  
568 568  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
569 569  
581 +
570 570  == 3.2 General Commands ==
571 571  
572 572  
... ... @@ -584,7 +584,7 @@
584 584  == 3.3 Commands special design for DS20L ==
585 585  
586 586  
587 -These commands only valid for DS20L, as below:
599 +Below commands only valid for DS20L, as below:
588 588  
589 589  
590 590  === 3.3.1 Set Transmit Interval Time ===
... ... @@ -626,7 +626,7 @@
626 626  Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
627 627  )))
628 628  * (((
629 -Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
641 +Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
630 630  
631 631  
632 632  
... ... @@ -649,7 +649,7 @@
649 649  the mode is 0 =Disable Interrupt
650 650  )))
651 651  |(% style="width:154px" %)(((
652 -AT+INTMOD=2
664 +AT+INTMOD=3
653 653  
654 654  (default)
655 655  )))|(% style="width:196px" %)(((
... ... @@ -670,6 +670,117 @@
670 670  
671 671  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
672 672  
685 +=== 3.3.3 Set work mode ===
686 +
687 +
688 +Feature: Switch working mode
689 +
690 +(% style="color:blue" %)**AT Command: AT+MOD**
691 +
692 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
693 +|=(% style="width: 162px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 193px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Response**
694 +|(% style="width:162px" %)AT+MOD=?|(% style="width:191px" %)Get the current working mode.|(% style="width:106px" %)OK
695 +|(% style="width:162px" %)AT+MOD=1|(% style="width:191px" %)Set the working mode to Regular measurements.|(% style="width:106px" %)(((
696 +OK
697 +Attention:Take effect after ATZ
698 +)))
699 +
700 +(% style="color:blue" %)**Downlink Command:**
701 +
702 +* **Example: **0x0A01 ~/~/  Same as AT+MOD=1
703 +
704 +* **Example:** 0x0A02  ~/~/  Same as AT+MOD=2
705 +
706 +=== 3.3.4 Set threshold and threshold mode ===
707 +
708 +
709 +Feature, Set threshold and threshold mode
710 +
711 +When (% style="color:#037691" %)**AT+DOL=0,0,0,0,400**(%%) is set, No threshold is used, the sampling time is 400ms.
712 +
713 +(% style="color:blue" %)**AT Command: AT+DOL**
714 +
715 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
716 +|(% style="background-color:#4f81bd; color:white; width:162px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:240px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:108px" %)**Response**
717 +|(% style="width:172px" %)AT+ DOL =?|(% style="width:279px" %)Get the current threshold mode and sampling time|(% style="width:118px" %)(((
718 +0,0,0,0,400
719 +OK
720 +)))
721 +|(% style="width:172px" %)AT+ DOL =1,1800,100,0,400|(% style="width:279px" %)Set only the upper and lower thresholds|(% style="width:118px" %)OK
722 +
723 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
724 +|=(% style="width: 162px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 193px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 155px;background-color:#4F81BD;color:white" %) Parameter
725 +|(% rowspan="11" style="color:blue; width:120px" %)(((
726 +
727 +
728 +
729 +
730 +
731 +
732 +
733 +
734 +
735 +
736 +
737 +**AT+DOL=1,1800,3,0,400**
738 +)))|(% rowspan="4" style="width:240px" %)(((
739 +
740 +
741 +
742 +
743 +The first bit sets the limit mode
744 +)))|(% style="width:150px" %)0: Do not use upper and lower limits
745 +|(% style="width:251px" %)1: Use upper and lower limits
746 +|(% style="width:251px" %)2:Less than the upper limit
747 +|(% style="width:251px" %)3: Greater than the lower limit
748 +|(% style="width:226px" %)The second bit sets the upper limit value|(% style="width:251px" %)3~~2000MM
749 +|(% style="width:226px" %)The third bit sets the lower limit value|(% style="width:251px" %)3~~2000MM
750 +|(% rowspan="2" style="width:226px" %)The fourth bit sets the over-limit alarm or person or object count.|(% style="width:251px" %)0 Over-limit alarm, DO output is high
751 +|(% style="width:251px" %)1 Person or object counting statistics
752 +|(% style="width:226px" %)The fifth bit sets the sampling time|(% style="width:251px" %)(((
753 +100~~10000ms
754 +
755 +
756 +)))
757 +
758 +(% style="color:blue" %)**Downlink Command: 0x07**
759 +
760 +Format: Command Code (0x07) followed by 9 bytes.
761 +
762 +If the downlink payload=**07 01 0708 0064 00 0190**, it means set the END Node's limit mode to 0x01,upper limit value to 0x0708=1800(mm), lower limit value to 0x0064=100(mm), to over-limit alarm(0x00) ,the sampling time to 0x0190=400(ms), while type code is 0x07.
763 +
764 +* Example 0: Downlink Payload: 07 00 0000 0000 00 0190  **~-~-->**  AT+MOD=0,0,0,0,400
765 +
766 +* Example 1: Downlink Payload: 070107080064000190  **~-~-->**  AT+MOD=1,1800,100,0,400
767 +
768 +* Example 2: Downlink Payload: 070200000064000190  **~-~-->**  AT+MOD=2,1800,100,0,400
769 +
770 +* Example 3: Downlink Payload: 070300000064000190  **~-~-->**  AT+MOD=3,0,100,0,400
771 +
772 +(% style="color:Red" %)**Note: The over-limit alarm is applied to MOD1 and MOD2.**
773 +
774 +**For example:**
775 +
776 +* **AT+MOD=1**
777 +
778 + **AT+DOL=1,500,244,**(% style="color:blue" %)0(%%)**,300**
779 +
780 +Send data according to the normal TDC time. If the mode limit is exceeded, the alarm flag is set to 1:
781 +
782 +[[image:image-20231211113204-2.png||height="292" width="1093"]]
783 +
784 +* **AT+MOD=2  **
785 +
786 + **AT+DOL=1,500,244,**(% style="color:blue" %)0(%%)**,300**
787 +
788 +If the mode limit is exceeded, the data is immediately uplink and the alarm flag is set to 1:
789 +
790 +[[image:image-20231211114932-3.png||height="277" width="1248"]]
791 +
792 +
793 +
794 +
795 +
673 673  = 4. Battery & Power Consumption =
674 674  
675 675  
... ... @@ -706,6 +706,33 @@
706 706  DS20L 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"]]
707 707  
708 708  
832 +== 6.2 DS20L programming line ==
833 +
834 +
835 +缺图 后续补上
836 +
837 +feature:
838 +
839 +for AT commands
840 +
841 +Update the firmware of DS20L
842 +
843 +Support interrupt mode
844 +
845 +
846 +== 6.3 LiDAR probe position ==
847 +
848 +
849 +[[image:1701155390576-216.png||height="285" width="307"]]
850 +
851 +The black oval hole in the picture is the LiDAR probe.
852 +
853 +
854 +== 6.4 Interface definition ==
855 +
856 +[[image:image-20231128151132-2.png||height="305" width="557"]]
857 +
858 +
709 709  = 7. Trouble Shooting =
710 710  
711 711  == 7.1 AT Command input doesn't work ==
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