The MicroView is the first chip-sized Arduino compatible module that lets you see what your Arduino is thinking using a built-in OLED display. With the onboard 64×48 pixel OLED, you can use the MicroView to display sensor data, emails, pin status, and more. It also fits nicely into a breadboard to make prototyping easy. The MicroView also has a full-featured Arduino library to make programming the module easy. In the heart of MicroView, there is ATMELs ATmega328P, 5V & 3.3V LDO and a 64×48 pixel OLED display, together with other passive components that allow the MicroView to operate without any external components other than a power supply. Additionally, the MicroView is 100% code compatible with Arduino Uno (ATmega328P version), meaning the code that runs on an Arduino Uno will also be able to run on the MicroView if the IO pins used in the code are externally exposed on the MicroView. Note: The MicroView programmer is sold separately. Get Started with the SparkFun MicroView Guide Features 64×48 Pixel OLED Display ATmega328P 5V Operational Voltage VIN Range: 3.3V – 16V 12 Digital I/O Pins (3 PWM) 6 Analog Inputs Breadboard Friendly DIP Package 32KB Flash Memory Arduino IDE 1.0+ Compatible Documents Schematic Eagle Files MicroView Hookup Guide MicroView Bootloader Installation GitHub (Design Files & Example Code) GitHub (Library)