Touch button system with LED display lamp and control method thereof

2015 
The present invention discloses a touch button system with a LED display lamp and a control method thereof. A control module is arranged, when at least two touch buttons work, the control module scans at least two touch buttons at the same time and performs charging and discharging of touch reference capacitors respectively corresponding to at least two touch buttons in the scanning process so as to generate first port voltage and second port voltage which have the same amplitude and allow the voltage amplitudes of two ends of the LED display to be the same, and therefore, the noise capacitances at two ends of the LED can be eliminated to allow the touch reference capacitors not to be influenced by the LED noise capacitance, the normal change information of the touch reference capacitors can be stably and accurately collected, the touch motion can be accurately identified, and the validity and the accuracy of touching the touch buttons can be improved.
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