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89	89	* 8500mAh Battery for long term use
90	90
91	91
	92	+
92	92	== 1.3  Specification ==
93	93
94	94	=== 1.3.1  Rated environmental conditions ===
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97	97
98	98
99	99	(((
100		-**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
	101	+**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  **
101	101
102	102	**~ b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
103	103	)))
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136	136	* Bottom water level monitoring
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138	138
	140	+
139	139	== 1.6  Pin mapping and power on ==
140	140
141	141
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165	165
166	166	)))
167	167
168		-[[image:1654913911773-521.png]]
	170	+[[image:1654913911773-521.png]]
169	169
170	170
171	171	(((
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244	244
245	245	(((
246	246	(((
247		-LDDS45 will uplink payload via LoRaWAN with below payload format:
	249	+LDDS75 will uplink payload via LoRaWAN with below payload format:
	250	+)))
248	248
249		-Uplink payload includes in total 8 bytes.
	252	+(((
	253	+Uplink payload includes in total 4 bytes.
	254	+Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
250	250	)))
251	251	)))
252	252
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273	273	=== 2.3.1  Battery Info ===
274	274
275	275
276		-Check the battery voltage for LDDS45.
	281	+Check the battery voltage for LDDS75.
277	277
278	278	Ex1: 0x0B45 = 2885mV
279	279
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284	284	=== 2.3.2  Distance ===
285	285
286	286	(((
287		-Get the distance. Flat object range 30mm - 4500mm.
	292	+Get the distance. Flat object range 280mm - 7500mm.
288	288	)))
289	289
290	290	(((
291		-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.**
	296	+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.**
292	292	)))
293	293
294	294
295	295	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
296		-* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
	301	+* 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.
297	297
298	298
	304	+
299	299	=== 2.3.3  Interrupt Pin ===
300	300
301		-This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.3A0SetInterruptMode"]] for the hardware and software set up.
	307	+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.
302	302
303	303	**Example:**
304	304
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318	318
319	319	If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
320	320
	327	+(% style="color:red" %)Note: DS18B20 feature is supported in the hardware version > v1.3 which made since early of 2021.
321	321
322	322
	330	+
323	323	=== 2.3.5  Sensor Flag ===
324	324
325	325	(((
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870	870	* Blink once when device transmit a packet.
871	871
872	872
	881	+
873	873	== 2.8  ​Firmware Change Log ==
874	874
875	875
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1087	1087	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1088	1088
1089	1089
	1099	+
1090	1090	= 4.  FAQ =
1091	1091
1092	1092	== 4.1  What is the frequency plan for LDDS75? ==
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1147	1147	* (% style="color:red" %)**8 **(%%)**:** 8500mAh battery
1148	1148
1149	1149
	1160	+
1150	1150	= 7. ​ Packing Info =
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1162	1162	* Weight / pcs : g
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	1176	+
1165	1165	= 8.  ​Support =
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1167	1167	* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.