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31	31	This water meter is designed in accordance with the Chinese standard for drinking cold water meters and hot water meters, GB/T 778.1-2007. It features five dial numbers for measurement accuracy.
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33		-=== 2.1.2 Fix Sensor to a Water Meter(% title="Click and drag to resize" %)​(%%) ===
	33	+=== 2.1.2 Fix Sensor to a Water Meter ===
34	34
35		-The AI Sensors are fixed in the device, and then the water meter is embedded and the Angle is adjusted.
	35	+Do the following with EVB_Board
	36	+Debug Board SW12=[off on] : FT4222H SPI Slave mode
	37	+AIoT Board SW123456=[off off off off off off]
36	36
37		-[[image:image-20240424163340-4.jpeg||height="709" width="532"]]
	39	+(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(%%) (% title="Click and drag to resize" %)​
38	38
	41	+Use a hot glue gun and several sticks to attach a triangle for stabilizing the AIS. Adjust the height of the sticks so that the AIS can clearly view the numbers on the water meter.
39	39
	43	+[[image:image-20240422092251-1.png]]
	44	+
	45	+
40	40	=== 2.1.3 Calibration ===
41	41
42	42	Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.