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Last modified by Mengting Qiu on 2025/08/06 17:02
From version 172.3
edited by Xiaoling
on 2022/06/15 09:51
Change comment: There is no comment for this version
To version 172.7
edited by Xiaoling
on 2022/06/15 09:58
Change comment: There is no comment for this version

Summary

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... ... @@ -321,12 +321,10 @@
321 321  
322 322  (((
323 323  (((
324 -LDDS75 will uplink payload via LoRaWAN with below payload format: 
325 -)))
324 +LDDS20 will uplink payload via LoRaWAN with below payload format:
326 326  
327 -(((
328 -Uplink payload includes in total 4 bytes.
329 -Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
326 +Uplink payload includes in total 8 bytes.
327 +Payload for firmware version v1.1.4. . Before v1.1.3, there is only 5 bytes: BAT and Distance(Please check manual v1.2.0 if you have 5 bytes payload).
330 330  )))
331 331  )))
332 332  
... ... @@ -353,7 +353,7 @@
353 353  === 2.3.1  Battery Info ===
354 354  
355 355  
356 -Check the battery voltage for LDDS75.
354 +Check the battery voltage for LDDS20.
357 357  
358 358  Ex1: 0x0B45 = 2885mV
359 359  
... ... @@ -364,17 +364,19 @@
364 364  === 2.3.2  Distance ===
365 365  
366 366  (((
367 -Get the distance. Flat object range 280mm - 7500mm.
365 +Get the distance. Flat object range 20mm - 2000mm.
368 368  )))
369 369  
370 370  (((
371 -For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0B05(H) = 2821 (D) = 2821 mm.**
369 +For example, if the data you get from the register is __0x06 0x05__, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** 0605(H) = 1541 (D) = 1541 mm.**
372 372  )))
373 373  
372 +* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
373 +* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
374 374  
375 -* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
376 -* 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.
377 377  
376 +
377 +
378 378  === 2.3.3  Interrupt Pin ===
379 379  
380 380  This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3A0SetInterruptMode"]] for the hardware and software set up.