Button powered, touch method: click on the touch point.
The LEDs in the BOM meter use a 0-ohm package. Because the SMD LED package is not easy to solder and easily melts, so if you change it to a larger package, you can ignore the BOM meter.
There is also no need for nuts, they don’t have to be exactly the same as the BOM components, as long as the value of the components and the package are the same (it’s okay if the package is different, as long as you can weld it). RH6616 seems to have been discontinued, and Lichuang may not be able to find it. I went to Taobao to buy it. The name was changed from RH6616 to Taobao Sourong Microelectronics.
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