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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 114.1
edited by Xiaoling
on 2023/11/10 10:26
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To version 170.2
edited by Mengting Qiu
on 2023/12/12 10:36
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Summary

Details

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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  
... ... @@ -22,7 +22,7 @@
22 22  == 1.1 What is LoRaWAN Smart Distance Detector ==
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.
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. DS20L can measure range between 3cm ~~ 200cm.
26 26  
27 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 28  consumption. It targets professional wireless sensor network applications such smart cities, building automation, and so on.
... ... @@ -31,9 +31,8 @@
31 31  
32 32  DS20L is fully compatible with (% style="color:blue" %)**LoRaWAN v1.0.3 Class A protocol**(%%), it can work with a standard LoRaWAN gateway.
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.
35 35  
36 -[[image:image-20231110091506-4.png||height="391" width="768"]]
35 +[[image:image-20231110102635-5.png||height="402" width="807"]]
37 37  
38 38  
39 39  == 1.2 ​Features ==
... ... @@ -45,13 +45,11 @@
45 45  * AT Commands to change parameters
46 46  * Remotely configure parameters via LoRaWAN Downlink
47 47  * Alarm & Counting mode
48 -* Datalog Feature
49 49  * Firmware upgradable via program port or LoRa protocol
50 50  * Built-in 2400mAh battery or power by external power source
51 51  
52 52  == 1.3 Specification ==
53 53  
54 -
55 55  (% style="color:#037691" %)**LiDAR Sensor:**
56 56  
57 57  * Operation Temperature: -40 ~~ 80 °C
... ... @@ -62,10 +62,34 @@
62 62  * ToF FoV: ±9°, Total 18°
63 63  * Light source: VCSEL
64 64  
62 +== 1.4 Power Consumption ==
65 65  
66 -(% style="display:none" %)
67 67  
65 +(% style="color:#037691" %)**Battery Power Mode:**
68 68  
67 +* Idle: 3uA @ 3.3v
68 +* Max : 360 mA
69 +
70 +(% style="color:#037691" %)**Continuously mode**:
71 +
72 +* Idle: 21 mA @ 3.3v
73 +* Max : 360 mA
74 +
75 +== 1.5 Use Case ==
76 +
77 +(% class="mark" %)**Regular Distance Detect**
78 +
79 +[[image:image-20231211220922-1.png||height="352" width="605"]]
80 +
81 +
82 +(% class="mark" %)**Counting / Alarm**
83 +
84 +[[image:image-20231211221253-2.png]]
85 +
86 +
87 +[[image:image-20231211221436-3.png]]
88 +
89 +
69 69  = 2. Configure DS20L to connect to LoRaWAN network =
70 70  
71 71  == 2.1 How it works ==
... ... @@ -80,52 +80,47 @@
80 80  
81 81  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 [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
82 82  
83 -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.
104 +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.(% style="display:none" %)
84 84  
85 -[[image:image-20231110091447-3.png||height="383" width="752"]](% style="display:none" %)
106 +[[image:image-20231110102635-5.png||height="402" width="807"]](% style="display:none" %)
86 86  
108 +=== Step 1: Create a device in TTN with the OTAA keys from DS20L. ===
87 87  
88 -(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DS20L.
89 -
90 90  Each DS20L is shipped with a sticker with the default device EUI as below:
91 91  
92 92  [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
93 93  
94 94  
95 -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:
96 96  
97 97  
98 98  (% style="color:blue" %)**Register the device**
99 99  
100 -[[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"]]
101 101  
102 102  
103 -(% style="color:blue" %)**Add APP EUI and DEV EUI**
123 +(% style="color:blue" %)**Add DevEUI and AppKey**
104 104  
105 -[[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"]]
106 106  
107 107  
108 -(% style="color:blue" %)**Add APP EUI in the application**
109 109  
129 +=== Step 2: Activate DS20L ===
110 110  
111 -[[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"]]
112 112  
133 +Press the button for 5 seconds to activate the DS20L.
113 113  
114 -(% style="color:blue" %)**Add APP KEY**
135 +The switch is switched to (% style="color:blue" %)**E** (%%)and the external power supply is used.
115 115  
116 -[[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.
117 117  
118 -
119 -(% style="color:blue" %)**Step 2:**(%%) Activate on DS20L
120 -
121 -
122 -Press the button for 5 seconds to activate the DS20L.
123 -
124 124  (% 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.
125 125  
126 126  After join success, it will start to upload messages to TTN and you can see the messages in the panel.
127 127  
128 128  
144 +
129 129  == 2.3 ​Uplink Payload ==
130 130  
131 131  === 2.3.1 Device Status, FPORT~=5 ===
... ... @@ -143,9 +143,9 @@
143 143  
144 144  Example parse in TTNv3
145 145  
146 -[[image:image-20230805103904-1.png||height="131" width="711"]]
162 +[[image:image-20231206151412-3.png||height="179" width="1070"]]
147 147  
148 -(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x24
164 +(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x21
149 149  
150 150  (% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
151 151  
... ... @@ -199,222 +199,225 @@
199 199  === 2.3.2 Uplink Payload, FPORT~=2 ===
200 200  
201 201  
202 -(((
203 -DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
218 +==== (% style="color:red" %)**AT+MOD~=1**(%%) ====
204 204  
205 -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.
206 206  
207 -Uplink Payload totals 11 bytes.
208 -)))
222 +**Uplink Payload totals 10 bytes.**
209 209  
210 210  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
211 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
212 -**Size(bytes)**
213 -)))|=(% 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**
214 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
215 -[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
216 -)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
217 -[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
218 -)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
219 -[[Message Type>>||anchor="HMessageType"]]
220 -)))
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
221 221  
222 -[[image:image-20230805104104-2.png||height="136" width="754"]]
228 +**MOD+ Alarm+ Interrupt:**
223 223  
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
224 224  
225 -==== (% style="color:blue" %)**Battery Info**(%%) ====
236 +0: No Alarm;
226 226  
238 +1: Alarm
239 +)))
227 227  
228 -Check the battery voltage for DS20L.
241 +Example parse in TTNv3
229 229  
230 -Ex1: 0x0B45 = 2885mV
243 +[[image:image-20231209152917-1.png||height="300" width="1172"]]
231 231  
232 -Ex2: 0x0B49 = 2889mV
245 +(% style="color:blue" %)**Battery Info:**
233 233  
247 +Check the battery voltage for DS20L
234 234  
235 -==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
249 +Ex1: 0x0E10 = 3600mV
236 236  
237 237  
238 -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:**
239 239  
254 +(% style="color:red" %)**MOD:**
240 240  
241 -**Example**:
256 +**Example: ** (0x60>>6) & 0x3f =1
242 242  
243 -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).
244 244  
245 -If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
261 +(% style="color:red" %)**Alarm:**
246 246  
263 +When the detection distance exceeds the limit, the alarm flag is set to 1.
247 247  
248 -==== (% style="color:blue" %)**Distance**(%%) ====
265 +(% style="color:red" %)**Interrupt:**
249 249  
267 +Whether it is an external interrupt.
250 250  
251 -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.
252 252  
270 +(% style="color:blue" %)**Distance info:**
253 253  
254 254  **Example**:
255 255  
256 -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
257 257  
258 258  
259 -==== (% style="color:blue" %)**Distance signal strength**(%%) ====
277 +(% style="color:blue" %)**Sensor State:**
260 260  
279 +Ex1: 0x00: Normal collection distance
261 261  
262 -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 collection is wrong
263 263  
264 264  
265 -**Example**:
284 +(% style="color:blue" %)**Interrupt Count:**
266 266  
267 -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
268 268  
269 -Customers can judge whether they need to adjust the environment based on the signal strength.
270 270  
271 271  
272 -**1) When the sensor detects valid data:**
290 +==== (% style="color:red" %)**AT+MOD~=2**(%%)** ** ====
273 273  
274 -[[image:image-20230805155335-1.png||height="145" width="724"]]
275 275  
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.)
276 276  
277 -**2) When the sensor detects invalid data:**
295 +[[image:image-20231128133704-1.png||height="189" width="441"]]
278 278  
279 -[[image:image-20230805155428-2.png||height="139" width="726"]]
280 280  
298 +* **Set over-limit alarm mode: AT+DOL=3,500,244,**(% style="color:red" %)0(%%)**,120**
281 281  
282 -**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. Uplink Payload totals 9 bytes.
283 283  
284 -[[image:image-20230805155515-3.png||height="143" width="725"]]
303 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
304 +|(% 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**
305 +|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:176px" %)MOD+Alarm+DO+Limit flag|(% style="width:74px" %)Distance |(% style="width:100px" %)Upper limit|(% style="width:119px" %)Lower limit
285 285  
307 +[[image:image-20231209171127-3.png||height="374" width="1209"]]
286 286  
287 -==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
309 +(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
288 288  
311 +(% style="color:red" %)**MOD:**
289 289  
290 -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.
313 +**Example: ** (0x60>>6) & 0x3f =1
291 291  
292 -Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]] of GPIO_EXTI .
315 +**0x01:**  Regularly detect distance and report.
316 +**0x02: ** Uninterrupted measurement (external power supply).
293 293  
294 -**Example:**
318 +(% style="color:red" %)**Alarm:**
295 295  
296 -If byte[0]&0x01=0x00 : Normal uplink packet.
320 +When the detection distance exceeds the limit, the alarm flag is set to 1.
297 297  
298 -If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
322 +(% style="color:red" %)**DO:**
299 299  
324 +When the distance exceeds the set threshold, pull the Do pin high.
300 300  
301 -==== (% style="color:blue" %)**LiDAR temp**(%%) ====
326 +(% style="color:red" %)**Limit flag:**
302 302  
328 +Mode for setting threshold: **0~~3**
303 303  
304 -Characterize the internal temperature value of the sensor.
330 +**0:** does not use upper and lower limits
305 305  
306 -**Example: **
307 -If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
308 -If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
332 +**1:** Use upper and lower limits
309 309  
334 +**2:** Less than the upper limit
310 310  
311 -==== (% style="color:blue" %)**Message Type**(%%) ====
336 +**3: **Greater than the lower limit
312 312  
313 313  
314 -(((
315 -For a normal uplink payload, the message type is always 0x01.
316 -)))
339 +(% style="color:blue" %)**Distance:**
317 317  
318 -(((
319 -Valid Message Type:
320 -)))
341 + Actual sampling distance values.
321 321  
322 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
323 -|=(% 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**
324 -|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
325 -|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
343 +**Example:**
326 326  
327 -[[image:image-20230805150315-4.png||height="233" width="723"]]
345 +**AT+DOL=1,500,244,**(% style="color:red" %)0(%%)**,120  **
328 328  
347 +The distance is detected every 120ms.
329 329  
330 -=== 2.3.3 Historical measuring distance, FPORT~=3 ===
349 +When the actual detection value is within the range of [244mm,500mm], the data is uploaded in the normal TDC time.
331 331  
351 +When the actual detection value is outside the range of [244mm,500mm], the uplink data will be immediately alerted.
332 332  
333 -DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
353 +If payload is: 0708H: distance = 0708H = 1800 mm
334 334  
335 -The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
336 336  
337 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
338 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
339 -**Size(bytes)**
340 -)))|=(% 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
341 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
342 -Reserve(0xFF)
343 -)))|Distance|Distance signal strength|(% style="width:88px" %)(((
344 -LiDAR temp
345 -)))|(% style="width:85px" %)Unix TimeStamp
356 +(% style="color:blue" %)**Upper limit:**
346 346  
347 -**Interrupt flag & Interrupt level:**
358 +The upper limit of the threshold cannot exceed 2000mm.
348 348  
349 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
350 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
351 -**Size(bit)**
352 -)))|=(% 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**
353 -|(% 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" %)(((
354 -Interrupt flag
355 -)))
356 356  
357 -* (((
358 -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.
359 -)))
361 +(% style="color:blue" %)**Lower limit:**
360 360  
361 -For example, in the US915 band, the max payload for different DR is:
363 +The lower limit of the threshold cannot be less than 3mm.
362 362  
363 -**a) DR0:** max is 11 bytes so one entry of data
364 364  
365 -**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
366 +* **Set the person or object count mode: AT+DOL=1,500,244,**(% style="color:red" %)1(%%)**,120**
366 366  
367 -**c) DR2:** total payload includes 11 entries of data
368 +Continuous measurement, detect and count people or things passing by in distance limit mode. Uplink Payload totals 11 bytes.
368 368  
369 -**d) DR3:** total payload includes 22 entries of data.
370 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:600px" %)
371 +|(% 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**
372 +|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:176px" %)MOD+Alarm+Do+Limit flag|(% style="width:176px" %)Distance limit alarm count|(% style="width:100px" %)Upper limit|(% style="width:119px" %)Lower limit
370 370  
371 -If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
374 +[[image:image-20231209173457-5.png||height="277" width="1098"]]
372 372  
376 +(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
373 373  
374 -**Downlink:**
378 +(% style="color:red" %)**MOD:**
375 375  
376 -0x31 64 CC 68 0C 64 CC 69 74 05
380 +**Example: ** (0x60>>6) & 0x3f =1
377 377  
378 -[[image:image-20230805144936-2.png||height="113" width="746"]]
382 +**0x01:**  Regularly detect distance and report.
383 +**0x02: ** Uninterrupted measurement (external power supply).
379 379  
380 -**Uplink:**
385 +(% style="color:red" %)**Alarm:**
381 381  
382 -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
387 +When the detection distance exceeds the limit, the alarm flag is set to 1.
383 383  
389 +(% style="color:red" %)**Do:**
384 384  
385 -**Parsed Value:**
391 +When the distance exceeds the set threshold, pull the Do pin high.
386 386  
387 -[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
393 +(% style="color:red" %)**Limit flag:**
388 388  
395 +Mode for setting threshold: **0~~3**
389 389  
390 -[360,176,30,High,True,2023-08-04 02:53:00],
397 +**0:** does not use upper and lower limits
391 391  
392 -[355,168,30,Low,False,2023-08-04 02:53:29],
399 +**1:** Use upper and lower limits
393 393  
394 -[245,211,30,Low,False,2023-08-04 02:54:29],
401 +**2:** Less than the upper limit
395 395  
396 -[57,700,30,Low,False,2023-08-04 02:55:29],
403 +**3: **Greater than the lower limit
397 397  
398 -[361,164,30,Low,True,2023-08-04 02:56:00],
399 399  
400 -[337,184,30,Low,False,2023-08-04 02:56:40],
406 +(% style="color:blue" %)**Distance limit alarm count:**
401 401  
402 -[20,4458,30,Low,False,2023-08-04 02:57:40],
408 +People or objects are collected and counted within a limited distance.
403 403  
404 -[362,173,30,Low,False,2023-08-04 02:58:53],
410 +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.
405 405  
412 +**Example:**
406 406  
407 -**History read from serial port：**
414 +**AT+DOL=1,500,244,**(% style="color:red" %)1(%%)**,120   **
408 408  
409 -[[image:image-20230805145056-3.png]]
416 +People or objects passing within the distance range of [244mm,500mm] are detected and counted every 120ms.
410 410  
418 +If payload is: 0x56H, interrupt count =0x56H =86
411 411  
412 -=== 2.3.4 Decode payload in The Things Network ===
413 413  
421 +(% style="color:blue" %)**Upper limit:**
414 414  
423 +The upper limit of the threshold cannot exceed 2000mm.
424 +
425 +
426 +(% style="color:blue" %)**Lower limit:**
427 +
428 +The lower limit of the threshold cannot be less than 3mm.
429 +
430 +
431 +== 2.4 Decode payload in The Things Network ==
432 +
433 +
415 415  While using TTN network, you can add the payload format to decode the payload.
416 416  
417 -[[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"]]
436 +[[image:image-20231206143515-1.png||height="534" width="759"]]
418 418  
419 419  
420 420  (((
... ... @@ -426,11 +426,11 @@
426 426  )))
427 427  
428 428  
429 -== 2.4 ​Show Data in DataCake IoT Server ==
448 +== 2.5 ​Show Data in DataCake IoT Server ==
430 430  
431 431  
432 432  (((
433 -[[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:
452 +[[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:
434 434  )))
435 435  
436 436  
... ... @@ -443,98 +443,28 @@
443 443  )))
444 444  
445 445  
446 -[[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"]]
465 +[[image:image-20231207153532-6.png||height="562" width="861"]]
447 447  
448 448  
449 -[[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"]]
468 +[[image:image-20231207155940-8.png]]
450 450  
470 +For more detailed instructions, refer to the following instructions: [[Welcome - Datacake Docs>>url:https://docs.datacake.de/]]
451 451  
472 +[[image:image-20231207160733-11.png||height="429" width="759"]]
473 +
474 +
452 452  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
453 453  
454 454  (% style="color:blue" %)**Step 4**(%%)**: Search the DS20L and add DevEUI.**
455 455  
456 -[[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"]]
479 +[[image:image-20231207160343-10.png||height="665" width="705"]]
457 457  
458 458  
459 459  After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
460 460  
461 -[[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"]]
484 +[[image:image-20231129100454-2.png||height="501" width="928"]]
462 462  
463 463  
464 -== 2.5 Datalog Feature ==
465 -
466 -
467 -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.
468 -
469 -
470 -=== 2.5.1 Ways to get datalog via LoRaWAN ===
471 -
472 -
473 -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.
474 -
475 -* (((
476 -a) DS20L will do an ACK check for data records sending to make sure every data arrive server.
477 -)))
478 -* (((
479 -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.
480 -)))
481 -
482 -
483 -
484 -=== 2.5.2 Unix TimeStamp ===
485 -
486 -
487 -DS20L uses Unix TimeStamp format based on
488 -
489 -[[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"]]
490 -
491 -User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
492 -
493 -Below is the converter example
494 -
495 -[[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"]]
496 -
497 -
498 -So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
499 -
500 -
501 -=== 2.5.3 Set Device Time ===
502 -
503 -
504 -User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
505 -
506 -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).
507 -
508 -(% 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.**
509 -
510 -
511 -=== 2.5.4 Poll sensor value ===
512 -
513 -
514 -Users can poll sensor values based on timestamps. Below is the downlink command.
515 -
516 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
517 -|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
518 -|(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
519 -|(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
520 -
521 -(((
522 -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.
523 -)))
524 -
525 -(((
526 -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"]]
527 -)))
528 -
529 -(((
530 -Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
531 -)))
532 -
533 -(((
534 -Uplink Internal =5s，means DS20L will send one packet every 5s. range 5~~255s.
535 -)))
536 -
537 -
538 538  == 2.6 Frequency Plans ==
539 539  
540 540  
... ... @@ -543,7 +543,7 @@
543 543  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
544 544  
545 545  
546 -3. Configure DS20L
495 += 3. Configure DS20L =
547 547  
548 548  == 3.1 Configure Methods ==
549 549  
... ... @@ -573,7 +573,7 @@
573 573  == 3.3 Commands special design for DS20L ==
574 574  
575 575  
576 -These commands only valid for DS20L, as below:
525 +Below commands only valid for DS20L, as below:
577 577  
578 578  
579 579  === 3.3.1 Set Transmit Interval Time ===
... ... @@ -615,7 +615,7 @@
615 615  Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
616 616  )))
617 617  * (((
618 -Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
567 +Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
619 619  
620 620  
621 621  
... ... @@ -638,7 +638,7 @@
638 638  the mode is 0 =Disable Interrupt
639 639  )))
640 640  |(% style="width:154px" %)(((
641 -AT+INTMOD=2
590 +AT+INTMOD=3
642 642  
643 643  (default)
644 644  )))|(% style="width:196px" %)(((
... ... @@ -659,7 +659,117 @@
659 659  
660 660  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
661 661  
611 +=== 3.3.3 Set work mode ===
662 662  
613 +
614 +Feature: Switch working mode
615 +
616 +(% style="color:blue" %)**AT Command: AT+MOD**
617 +
618 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
619 +|=(% 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**
620 +|(% style="width:162px" %)AT+MOD=?|(% style="width:191px" %)Get the current working mode.|(% style="width:106px" %)OK
621 +|(% style="width:162px" %)AT+MOD=1|(% style="width:191px" %)Set the working mode to Regular measurements.|(% style="width:106px" %)(((
622 +OK
623 +Attention:Take effect after ATZ
624 +)))
625 +
626 +(% style="color:blue" %)**Downlink Command:**
627 +
628 +* **Example: **0x0A01 ~/~/  Same as AT+MOD=1
629 +
630 +* **Example:** 0x0A02  ~/~/  Same as AT+MOD=2
631 +
632 +=== 3.3.4 Set threshold and threshold mode ===
633 +
634 +
635 +Feature, Set threshold and threshold mode
636 +
637 +When (% style="color:#037691" %)**AT+DOL=0,0,0,0,400**(%%) is set, No threshold is used, the sampling time is 400ms.
638 +
639 +(% style="color:blue" %)**AT Command: AT+DOL**
640 +
641 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
642 +|(% 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**
643 +|(% style="width:172px" %)AT+ DOL =?|(% style="width:279px" %)Get the current threshold mode and sampling time|(% style="width:118px" %)(((
644 +0,0,0,0,400
645 +OK
646 +)))
647 +|(% style="width:172px" %)AT+ DOL =1,1800,100,0,400|(% style="width:279px" %)Set only the upper and lower thresholds|(% style="width:118px" %)OK
648 +
649 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
650 +|=(% 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
651 +|(% rowspan="11" style="color:blue; width:120px" %)(((
652 +
653 +
654 +
655 +
656 +
657 +
658 +
659 +
660 +
661 +
662 +
663 +**AT+DOL=1,1800,3,0,400**
664 +)))|(% rowspan="4" style="width:240px" %)(((
665 +
666 +
667 +
668 +
669 +The first bit sets the limit mode
670 +)))|(% style="width:150px" %)0: Do not use upper and lower limits
671 +|(% style="width:251px" %)1: Use upper and lower limits
672 +|(% style="width:251px" %)2:Less than the upper limit
673 +|(% style="width:251px" %)3: Greater than the lower limit
674 +|(% style="width:226px" %)The second bit sets the upper limit value|(% style="width:251px" %)3~~2000MM
675 +|(% style="width:226px" %)The third bit sets the lower limit value|(% style="width:251px" %)3~~2000MM
676 +|(% 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
677 +|(% style="width:251px" %)1 Person or object counting statistics
678 +|(% style="width:226px" %)The fifth bit sets the sampling time|(% style="width:251px" %)(((
679 +100~~10000ms
680 +
681 +
682 +)))
683 +
684 +(% style="color:blue" %)**Downlink Command: 0x07**
685 +
686 +Format: Command Code (0x07) followed by 9 bytes.
687 +
688 +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.
689 +
690 +* Example 0: Downlink Payload: 07 00 0000 0000 00 0190  **~-~-->**  AT+MOD=0,0,0,0,400
691 +
692 +* Example 1: Downlink Payload: 070107080064000190  **~-~-->**  AT+MOD=1,1800,100,0,400
693 +
694 +* Example 2: Downlink Payload: 070200000064000190  **~-~-->**  AT+MOD=2,1800,100,0,400
695 +
696 +* Example 3: Downlink Payload: 070300000064000190  **~-~-->**  AT+MOD=3,0,100,0,400
697 +
698 +(% style="color:Red" %)**Note: The over-limit alarm is applied to MOD1 and MOD2.**
699 +
700 +**For example:**
701 +
702 +* **AT+MOD=1**
703 +
704 + **AT+DOL=1,500,244,**(% style="color:blue" %)0(%%)**,300**
705 +
706 +Send data according to the normal TDC time. If the mode limit is exceeded, the alarm flag is set to 1:
707 +
708 +[[image:image-20231211113204-2.png||height="292" width="1093"]]
709 +
710 +* **AT+MOD=2  **
711 +
712 + **AT+DOL=1,500,244,**(% style="color:blue" %)0(%%)**,300**
713 +
714 +If the mode limit is exceeded, the data is immediately uplink and the alarm flag is set to 1:
715 +
716 +[[image:image-20231211114932-3.png||height="277" width="1248"]]
717 +
718 +
719 +
720 +
721 +
663 663  = 4. Battery & Power Consumption =
664 664  
665 665  
... ... @@ -696,6 +696,33 @@
696 696  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"]]
697 697  
698 698  
758 +== 6.2 DS20L programming line ==
759 +
760 +
761 +缺图 后续补上
762 +
763 +feature:
764 +
765 +for AT commands
766 +
767 +Update the firmware of DS20L
768 +
769 +Support interrupt mode
770 +
771 +
772 +== 6.3 LiDAR probe position ==
773 +
774 +
775 +[[image:1701155390576-216.png||height="285" width="307"]]
776 +
777 +The black oval hole in the picture is the LiDAR probe.
778 +
779 +
780 +== 6.4 Interface definition ==
781 +
782 +[[image:image-20231128151132-2.png||height="305" width="557"]]
783 +
784 +
699 699  = 7. Trouble Shooting =
700 700  
701 701  == 7.1 AT Command input doesn't work ==
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