The Bitcraze Breakout Deck for Crazyflie 2.X facilitates the testing and development of new hardware designs without the need for soldering. It allows users to build circuits on a breadboard and connect them to the Crazyflie 2.X. The board provides access to all 20 expansion connector pins and includes a footprint for optional 1-wire memory, enabling automatic detection by the firmware. Signal names are clearly screen-printed for ease of use.