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How can the four legs of the 3x3 touch switch be connected to the circuit?

Release time:2018-07-24    Clicks: Click

 
How to connect the four legs of the 3x3 touch switch to the circuit, and introduce the specific access method.
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As the 3x3 touch switch is becoming more and more popular on the market, how do you get the common four pin 3x3 touch switch? Dong Kun explains the working principle of the 3x3 touch switch and the key switch for you.
In fact, the light touch switch is the same type of switch with the 3x3 light touch switch used in our life. The light touch key switch can not lock itself during the use process. However, as long as we press down, the signal of the four corner switch will change once. But how do we answer the four corners of the 3x3 touch switch? What is its working principle?
Working principle of light touch four foot key switch
The working principle of this switch is in fact similar to that of the ordinary button switch, which is composed of often open contact and normally closed contact. In the four foot button switch, the function of the contact is often opened. When pressure is pressed to the constant contact point, the circuit is connected. When the pressure is revoked, it is restored. Back to the original normally closed contact, that is, the so-called disconnection. The pressure is to use our hands to open the button and turn the button. All in all, the working principle of the four foot key switch is still very well understood.
3x3 touch switch four feet how to connect
The 1, the multimeter is transferred to the diode
2, first measure any four feet in the four corners, determine which two angles are conducting, and which two angles are disconnected.
3, press the button, measure any two feet, determine which two angles are turned on, and which two angles are disconnected.
4, start to disconnect, press button to press the two feet of the conduction can be the two corners of the welding.
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