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Author

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1		-XWiki.Bei
	1	+XWiki.Edwin

Content

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244	244	[[image:image-20240109160800-6.png]]
245	245
246	246
	247	+
247	247	=== 1.10.2 for LS version ===
248	248
249	249
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764	764	* Example 1: Downlink Payload: 080003  **~-~-->**  AT+PROBE=0003
765	765	* Example 2: Downlink Payload: 080101  **~-~-->**  AT+PROBE=0101
766	766
767		-=== 3.3.5 Multiple collections are one uplink (Since firmware V1.1) ===
	768	+=== 3.3.5 Multiple collections are one uplink（Since firmware V1.1） ===
768	768
769	769
770	770	Added AT+STDC command to collect the voltage of VDC_INPUT multiple times and upload it at one time.
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839	839	When downloading the images, choose the required image file for download. ​
840	840
841	841
842		-== 6.4 How to measure the depth of other liquids other than water? ==
843		-
844		-
845		-Test the current values at the depth of different liquids and convert them to a linear scale.
846		-Replace its ratio with the ratio of water to current in the decoder.
847		-
848		-**Example:**
849		-
850		-Measure the corresponding current of the sensor when the liquid depth is 2.04m and 0.51m.
851		-
852		-**Calculate scale factor：**
853		-Use these two data to calculate the current and depth scaling factors：(7.888-5.035)/(2.04-0.51)=1.86470588235294
854		-
855		-**Calculation formula：**
856		-
857		-Use the calibration formula：(Current current - Minimum calibration current)/Scale factor + Minimum actual calibration height
858		-
859		-**Actual calculations：**
860		-
861		-Use this formula to calculate the value corresponding to the current at a depth of 1.5 meters: (6.918-5.035)/1.86470588235294+0.51=1.519810726
862		-
863		-**Error：**
864		-
865		-0.009810726
866		-
867		-
868		-[[image:image-20240329175044-1.png]]
869		-
870	870	= 7. Troubleshooting =
871	871
872	872	== 7.1 Water Depth Always shows 0 in payload ==

image-20240329175044-1.png

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1		-XWiki.Bei

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1		-55.2 KB

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