Description Arduino compatible microcontroller running at 5V/16MHz Similar to the Pro Mini except with an ATmega32U4 on board 4 channels of 10-bit ADC, 5 PWM pins, 12 DIOs Voltage regulator on board The Pro Micro 5V/16MHz Arduino Compatible Microcontroller is similar to the Pro Mini except with an ATmega32U4 on board.
Beetle CM-32U4 Compatible w/ Arduino Leonardo ATmega32U4 - RobotShop
MicroSD Adapter for Arduino - RobotShop
Arduino Mega 2560 Microcontroller - RobotShop
A-Star 328PB Micro Programmable Module 5V, 16MHz - RobotShop
Arduino Pro Mini 328 - 5V/16MHz - RobotShop
Pro Micro 5V/16MHz Arduino Compatible Microcontroller - RobotShop
Description Microcontroller board based on the ATmega32u4 Operating voltage: 5V Digital I/O pins: 20 Clock speed: 16 MHz The Arduino Micro USB
Arduino Micro USB Microcontroller
ATtiny85 Arduino-Compatible Micro Development Board - RobotShop
EtherMega Ethernet Arduino Compatible Microcontroller - RobotShop
Pro Mini 5V 16MHz V 8MHz Compatible Con Arduino UNIT, 49% OFF
Arduino Uno R3 USB Microcontroller - RobotShop