Changes for page LMDS200 -- LoRaWAN Microwave Radar Distance Sensor User Manual
Last modified by Mengting Qiu on 2024/03/07 08:41
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... ... @@ -174,10 +174,10 @@ 174 174 175 175 176 176 ((( 177 -(% style="color:blue" %)**Step 3**(%%)**:** The L LDS12will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel.177 +(% style="color:blue" %)**Step 3**(%%)**:** The LDDS75 will auto join to the TTN network. After join success, it will start to upload messages to TTN and you can see the messages in the panel. 178 178 ))) 179 179 180 -[[image:16548 33501679-968.png]]180 +[[image:1654849068701-275.png]] 181 181 182 182 183 183 ... ... @@ -184,11 +184,10 @@ 184 184 == 2.3 Uplink Payload == 185 185 186 186 ((( 187 -LLDS12 will uplink payload via LoRaWAN with below payload format: 188 -))) 187 +LDDS75 will uplink payload via LoRaWAN with below payload format: 189 189 190 - (((191 - Uplink payload includesintotal11bytes.189 +Uplink payload includes in total 4 bytes. 190 +Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance 192 192 ))) 193 193 194 194 ((( ... ... @@ -198,15 +198,15 @@ 198 198 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:510px" %) 199 199 |=(% style="width: 62.5px;" %)((( 200 200 **Size (bytes)** 201 -)))|=(% style="width: 62.5px;" %)**2**|=(% style="width: 62.5px;" %)**2**|=**2**|=**2**|=**1**|=**1**|=**1** 202 -|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(% style="width:62.5px" %)((( 203 -[[Temperature DS18B20>>||anchor="H2.3.2A0DS18B20Temperaturesensor"]] 204 -)))|[[Distance>>||anchor="H2.3.3A0Distance"]]|[[Distance signal strength>>||anchor="H2.3.4A0Distancesignalstrength"]]|((( 205 -[[Interrupt flag>>||anchor="H2.3.5A0InterruptPin"]] 206 -)))|[[LiDAR temp>>||anchor="H2.3.6A0LiDARtemp"]]|((( 207 -[[Message Type>>||anchor="H2.3.7A0MessageType"]] 208 -))) 200 +)))|=(% style="width: 62.5px;" %)**2**|=**2**|=1|=2|=**1** 201 +|(% style="width:62.5px" %)**Value**|(% style="width:62.5px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|((( 202 +[[Distance>>||anchor="H2.3.3A0Distance"]] 209 209 204 +(unit: mm) 205 +)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.4A0Distancesignalstrength"]]|((( 206 +[[Temperature (Optional )>>||anchor="H2.3.5A0InterruptPin"]] 207 +)))|[[Sensor Flag>>path:#Sensor_Flag]] 208 + 210 210 [[image:1654833689380-972.png]] 211 211 212 212 ... ... @@ -214,7 +214,7 @@ 214 214 === 2.3.1 Battery Info === 215 215 216 216 217 -Check the battery voltage for L LDS12.216 +Check the battery voltage for LDDS75. 218 218 219 219 Ex1: 0x0B45 = 2885mV 220 220 ... ... @@ -222,49 +222,23 @@ 222 222 223 223 224 224 225 -=== 2.3.2 D S18B20 Temperaturesensor===224 +=== 2.3.2 Distance === 226 226 227 - Thisisoptional, usercanconnectexternalDS18B20sensor to the +3.3v, 1-wireand GND pin . and this field will report temperature.226 +Get the distance. Flat object range 280mm - 7500mm. 228 228 228 +For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is 229 229 230 -** Example**:230 +**0B05(H) = 2821 (D) = 2821 mm.** 231 231 232 -If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree 233 233 234 -If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees. 233 +* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor. 234 +* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid. 235 235 236 236 237 +=== 2.3.3 Interrupt Pin === 237 237 238 -=== 2.3.3 Distance === 239 - 240 -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. 241 - 242 - 243 -**Example**: 244 - 245 -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. 246 - 247 - 248 - 249 -=== 2.3.4 Distance signal strength === 250 - 251 -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. 252 - 253 - 254 -**Example**: 255 - 256 -If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible. 257 - 258 -Customers can judge whether they need to adjust the environment based on the signal strength. 259 - 260 - 261 - 262 -=== 2.3.5 Interrupt Pin === 263 - 264 264 This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.2A0SetInterruptMode"]] for the hardware and software set up. 265 265 266 -Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.6A0Pinmappingandpoweron"]]. 267 - 268 268 **Example:** 269 269 270 270 0x00: Normal uplink packet. ... ... @@ -272,35 +272,28 @@ 272 272 0x01: Interrupt Uplink Packet. 273 273 274 274 248 +=== 2.3.4 DS18B20 Temperature sensor === 275 275 276 - ===2.3.6LiDARtemp===250 +This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature. 277 277 278 - Characterize the internal temperature valueof the sensor.252 +**Example**: 279 279 280 -**Example: ** 281 -If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃. 282 -If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃. 254 +If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree 283 283 256 +If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees. 284 284 258 +Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021. 285 285 286 -=== 2.3. 7MessageType===260 +=== 2.3.5 Sensor Flag === 287 287 288 -((( 289 -For a normal uplink payload, the message type is always 0x01. 290 -))) 262 +0x01: Detect Ultrasonic Sensor 291 291 292 -((( 293 -Valid Message Type: 294 -))) 264 +0x00: No Ultrasonic Sensor 295 295 296 296 297 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:499px" %) 298 -|=(% style="width: 160px;" %)**Message Type Code**|=(% style="width: 163px;" %)**Description**|=(% style="width: 173px;" %)**Payload** 299 -|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)[[Normal Uplink Payload>>||anchor="H2.3A0200BUplinkPayload"]] 300 -|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>||anchor="H4.3A0GetFirmwareVersionInfo"]] 267 +=== 268 +(% style="color:inherit; font-family:inherit" %)2.3.6 Decode payload in The Things Network(%%) === 301 301 302 -=== 2.3.8 Decode payload in The Things Network === 303 - 304 304 While using TTN network, you can add the payload format to decode the payload. 305 305 306 306