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Touch sensor with LED and Buzzer

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  What is a Touch Sensor? Touch Sensors are the electronic sensors that can detect touch. They operate as a switch when touched. These sensors are used in lamps, touch screens of the mobile, etc… Touch sensors offer an intuitive user interface. Touch Sensor Touch Sensor Working Principle These sensors are sensitive to any pressure or force applied or touch. The principle of touch is similar to that of a switch. When the switch is closed, the current flows otherwise there is no chance of the current to flow. Similarly, when the touch sensor senses the touch or proximity is captured then it acts like a closed switch otherwise it acts as an open switch.  These sensors are also known as ‘Tactile Sensors’.  Hardware required: Arduino UNO or Genuino UNO USB 2.0 cable type A/B Touch Sensor Jumper Wires Here's the program👇 const int TOUCH_SENSOR_PIN  = 2; // Arduino pin connected to the OUTPUT pin of touch sensor const int LED_PIN           = 12; // Arduino pin connected to LED's pin
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Liquid Crystal Display (LCD) with Arduino

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 LCD is nothing but Liquid Crystal Display.   Liquid crystal Display 16x2 (LCD) is a widely used electronic device to establish communication between the real world and the electronics-based machine world. Liquid crystal display’s unique features are as follows: Consists of two rows, with the capability to display 16 characters in each row. Cable to display alphanumeric characters (means it can display numbers and alphabets).   Low power consumption. Works on the principle of blocking light instead of emitting light. Require less operating voltage.   Each character is built by a 5x8 pixel matrix. Liquid crystal displays (LCDs) are a commonly used to display data in devices such as  calculators, microwave ovens, and many other electronic devices. Hardware required Arduino UNO Board LCD Screen Pin headers to solder to the LCD display pins 10k ohm potentiometer 220 ohm resistor Hook-up wires or Jumper wires Breadboard Here's the program👇 We use c language for coding.  First we should
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