2 PCS T42 ATtiny Programmable Development Board [ATtiny13A, ATtiny25, ATtiny45, ATtiny85]

Description:
ATtiny (also known as TinyAVR) are a subfamily of the popular 8-bit AVR microcontrollers, which typically has fewer features, fewer I/O pins, and less memory than other AVR series chips. It can be used as a bare chip on a breadboard, as long as you can supply the correct power for the device. The ATtiny85 is supplied with a USB interface, either a full USB port such as the DigiStump Digispark or micro USB via a cloned board.
The CPU is based on RISC architecture and is mainly called a low power controller that stands fit for the real-time applications that can operate on minimum power. There are three variants of ATtiny85, ATtiny25, ATtiny45, and ATtiny85. It can be powered from a USB port and can communicate via the USB interface.
The main difference between these three ICs is the amount of memory each device has (Flash, EEPROM, and RAM).

Features:
Development board support chip: ATtiny13A, ATtiny25, ATtiny45, ATtiny85, etc.
Pin Number: 11 Pins
Port: Micro USB
Size: 25mm × 17mm

Package Include:
2 x T42 ATtiny Programmable Development Board