The A-Star 32U4 Prime LV (SMT) with A-Star 32U4 Prime is a miniature processor board built around the Atmel AVR ATmega32U4 microcontroller. The board includes one 16MHz and one 8MHz crystal oscillator, nine high-current GPIOs, seven 3.3V power inputs, and a USB port for programming and communication. It's a great choice for robotics, hobby projects, and low-power IoT designs. The board has seven programmable PWM output pins and can operate at voltage levels of between 2–16V. The USB connection is a type B micro, which is a common size in robotics and hobby applications.