It is a simple project that uses a metal touch sensor with the arduino uno board. The metal touch sensor is connected to the arduino uno board as an input to detect any electrical connectivity (human body) and the LED is defined as an output. Once the sensor is touched by a conductive body, it triggers the switch then sends this data to the Arduino Uno board, thus lighting the indicator. Description of the Arduino Uno component - is a type of Arduino board frequently used by specialists and hobbyists due to its robust design. It is equipped with a microcontroller card based on ATMega328P with 14 advanced I / O pins (6 PWM outputs), 6 analog inputs, quartz at 16 Mhz, a power outlet, a USB port, an ICSP header and a reset button. Reference Metal touch sensor KY-036 - is a type of switch that trips whenever the metal tip of the sensor is touched by a conductive body like ours. This module has 4 header pins, these are assigned for + 5V, GND, D0 / (digital output), A0 / (analog output).
