the Arduino Nano and Micro share some similar pinout configurations. They both have two GND pins, two reset pins, one AREF pin, and three power pins (3.3V, 5V, and VIN). Their onboard LEDs are ...

a Texas Instruments LM1117 LDO is used to provide a steady 3.3v output. The Arduino 101 also has voltage and over current protection. The tiny black square in the image on the right is a Fairchild ...