AITRIP 4pack Pro Micro ATmega32U4 5V/16MHz Module Board with 2 Row pin Header for arduino Leonardo Replace ATmega328 Pro Mini (4 Pack)

Features: ATmega32U4 running at 5V/16MHz Supported under Arduino IDE v1. 0. 1 4 x 10-bit ADC pins, 12 x Digital I/Os Rx and Tx Hardware Serial Connections On-Board Micro-USB connector for programming Pay attention to : 1. The acceptable voltage range is 6 to 9 V 2. When you open the Arduino IDE software, could you please go to the tool and choose the board "Arduino Leonardo" Explanation: 1. The Pro Micro is similar to the Pro mini except with a ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on board and do away with bulky external USB interface. 2. This tiny little board does all of the neat-o Arduino tricks that you're familiar with: 4 channels of 10-bit ADC, 5 PWM pins, 12 DIOs as well as hardware serial connections Rx and Tx. Running at 16MHz and 5V, this board will remind you a lot of your other favorite Arduino-compatible boards but this little guy can go just about anywhere. If you're supplying unregulated power to the board, be sure to connect to the "RAW" pin on not VCC. Package includes: 4 x Pro Micro ATmega32U4 Module for Arduino.