YouTube video
Things you need

Arduino Uno

Breadboard

Breadbourd Wire

touch sensor
or
push button


Led’s
How to build and schematic


With push button


With touch sensor
Hello
This should be very simple, first we make the pin 2 as input and pins 3 & 4 as output with “Pinmode()” command
in void loop
we have an if, which it reads the value of pin 2 with command “digitalRead()” (it will give us 0 or 1) which if it’s 1 pin 3 turns on and pin 4 turns off by using “digitalWrite()” and if it is other than 1 (it will be 0) it will go to “else” area and turns off pin 3 and turns on pin 4
simple and easy