Touch light board with adjustable modes based on SGL8022w

[Proofing verified]
Principle description: By switching the high and low levels of the two pins opt1 and opt2, the four working modes of this IC can be switched.
According to the SGL8022w chip manual, the following figure is obtained
[My handwriting is not good, please forgive me]
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SGL8022w is a common touch IC that costs about one yuan (there are original and domestic translated ones for you to choose from)
For LED, just choose 3v working voltage, and don’t put it in the bom. The slot in the figure is prepared for 38mm long LED strips.
 
The main function is realized by a four-position dip switch (more intuitive)
. Of course, it can also be realized by two single-pole double-throw switches.
 
Let’s talk about the sampling capacitor
. I used a 30nf capacitor here, and the result was a little sensitive. You can use a 33nf capacitor in the bom, or adjust it to a larger one appropriately.
 
[Special attention]
Do not operate with power on