Quantity   Component name
1 × Maple Mini A STM32F103 based breadboard friendly and dirt cheap board. Learn more at http://www.stm32duino.com
1 × Sharp GP2Y0E02B A digital distance sensor from Sharp. Digital output over I2C. This sensor is a bit complex as you need to do something called "e-fuse burning" in order to have several of them on the same I2C bus.
1 × VNH2SP30 board. Half bridge motor driver. Dirt cheap from China, it works but the PCB design is not optimal.