![]() ![]() Define your screen resolution as per your Touch screen (Max: 1024) This code demostrates 4-Wire Touch screen Y = (analogRead(X1))/(1024/Yresolution) Arduino Code for Touch Screen Interface /*= Form a voltage divider in Y1(+5V) and Y2(GND) X = (analogRead(Y1))/(1024/XYresolution) Measure Y axis Voltage Measure Y axis touchģ. Form a voltage divider in X1(+5V) and X2(GND) How it works? Measure X axis Voltage Reading X axis touchģ. Touch Screen connections with Arduino Touch Screen connections with Arduino Step 3: Programming the arduino Connect X1 of touch screen to A0 of arduino.Step 1: Components RequiredĬomponents Required for touch screen interfacing with arduino Step 2: Connections to Arduino ![]() In this chapter we are focusing only on 4-wire resistive touch screen interfacing. Pressure applied to the surface of the display by a finger or stylus causes the layers to touch, which completes electrical circuits and tells the device where the user is touching. Resistive touch screen displays are composed of multiple layers that are separated by thin spaces. ![]()
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