The GU112X16G-7806A is a Dot Graphic VFD Module features high brightness blue-green display. The 4/8-bit parallel and serial bidirectional interfaces are 5V TTL/CMOS compatible. The command set is LCD compatible with extended graphic functions. It features LCD parallel/SPI/Async interface and scroll + image + fill commands. This module has a fast latching 8-bit data bus. The RS and R/W control lines should be set prior to the rising edge of the E enable line. Data is clocked in on the falling edge of the enable line. The busy line should be checked before sending data.