This a parallel 4x20 Blue mode Super Twisted Nematic (STN) with built-in HD44780 equivalent controller. White LED backlight makes for white characters on blue background. It has 6 o’clock viewing.
The LCD requires 4 to 8 input lines for data and a data read/write I/O Line, a enable signal, and a instruction/data register select I/O line. This LCD is a much less expensive alternative to the serial LCDs, but requires more I/O.
The SmartGPU 2 is a powerful easy to use, intellectual property, graphics, audio, touchscreen and full datalogger processor embedded in a state-of-the-art ARM Cortex-M3 chip; this is mounted on a board with a touchscreen color LCD.
This is a Scott Edwards 4x20 Serial LCD with Terminal Features, Big-character Mode. It offers a terminal-style serial interface with many advanced features.
These are 8" inch diameter Mecanum wheels with a custom keyed shaft, and lock collars. Precision machined and keyed for easy assembly.
This is a very small light sensor. A photo resistor (also known as a photodector, or photocell) changes resistance depending on the amount of light it is exposed to.