Applications (SSD, LCD, OLED, TFT)

Microcontrollers have vast applications in almost every field including homes, enterprises, building automation, manufacturing, robotics, automotive, lighting, smart energy, industrial automation, communications, and internet of things (IoT) deployments. The simplest microcontrollers are extensively found in everyday convenience items such as ovens, refrigerators, toasters, mobile devices, key fobs, video games, televisions, and lawn-watering systems. They are also common in office machines such as photocopiers, scanners, fax machines, printers, smart meters, ATMs and security systems.

More sophisticated microcontrollers perform critical functions in aircraft, spacecraft, ocean-going vessels, vehicles, medical, life-support systems, and robots. In medical scenarios, microcontrollers are used to regulate the operations of an artificial heart, kidney, or other organs. They can also be instrumental in the functioning of prosthetic devices.

SSD:
A seven-segment display (SSD), or seven-segment indicator, is a form of an electronic display device for displaying decimal numerals that is an alternative to the more complex dot matrix displays. Seven-segment displays are widely used in digital clocks, electronic meters, basic calculators, and other electronic devices that display numerical information.

LCD:
An LCD is an electronic display module that uses the liquid crystal to produce a visible image. The 16×2 LCD is a very basic module commonly used in DIYs and circuits. The 16×2 translates o a display 16 characters per line in 2 such lines. In this LCD each character is displayed in a 5×7 pixel matrix.

OLED:
An organic light-emitting diode, also known as an organic EL diode, is a light-emitting diode in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current. The organic light-emitting diode (OLED) display that we'll use in this tutorial is the SSD1306 model: a mono-color, 0.96-inch display with 128×64 pixels.

TFT:
A thin-film-transistor liquid-crystal display (TFT LCD) is a variant of a liquid-crystal display (LCD) that uses thin-film-transistor (TFT) technology to improve image qualities such as addressability and contrast.TFT LCDs are used in appliances including television sets, computer monitors, mobile phones, handheld devices, video game systems, personal digital assistants, navigation systems, projectors, and car instrument clusters.