Some resources to help you getting started with STM32 programming.
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The larger the capacitance value, the higher the sensitivity; the smaller the capacitance value, the lower the sensitivity.
Adjust the touch sensitivity is as follows, Media Type Capacitor type Capacitance parameters:
Note: the constant voltage dimmer output connect with LED, the upper limit must be coscade current-limiting resistance.
Calculation Method of coscade current-limiting resistance:
R = （Vi - Vled）/ Io
Vi is the input voltage, Vled is the total pressure drop of all the LED lamps, Io is the total current light strings. Should consider the floating range Vi, Vled the calculation. Generally, when the battery is fully charged Vi will be too large. After the LED heat up, Vled will drop! Prevent excessive current from damaging modules or lights.