It’s thin (0.8mm)! It’s the Arduino Pro Mini! This is a 5V Arduino running the 16MHz bootloader. Arduino Pro Mini does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend first time Arduino users start with the Nano or Duemilanove.
They are great boards that will get you up and running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage (5V), lack of connectors, and USB off board.
- ATmega328 running at 16MHz with external resonator (0.5% tolerance)
- USB connection off board
- Supports auto-reset
- On board Power and Status LEDs
- 0.7×1.3″ (18x33mm)
- Less than 2 grams
The ATmega328 has 32 KB of flash memory for storing code (of which 2 KB is used for the bootloader). It has 2 KB of SRAM and 1 KB of EEPROM.