The ATtiny series is a family of small, low-power microcontrollers developed by Microchip Technology. These devices are designed for simple applications, making them ideal for hobbyists and embedded systems. They feature a range of input/output pins, memory options, and various peripherals, allowing for flexibility in design. ATtiny microcontrollers are often used in projects like robotics, home automation, and sensor applications. Their compact size and energy efficiency make them suitable for battery-operated devices. With easy programming options, including support for Arduino, they are accessible for both beginners and experienced developers.