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10 channels touch sensor switch electronic project

A touch sensor switch that works with 10 channels can be built using electronic scheme in the figure below. If you touch one of the 10 sensors, the corresponding output goes in a logical state 1, the other inputs are in logic state 0.
This 10-channel switch is built using 4017 CMOS decimal counter which provides "decoded" signals. A second oscillator realized with CMOS logic gates produces clock signal. The counter is working until it achieved the desired position of the switch.
The switch can be supplied with a DC voltage between 3 and 15 volts DC.

Circuit Diagram: 
10 channels touch sensor switch electronic project

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