USB and serial backpack for simple HD44780 character LCD screens. A few nice features set it apart from the usual serial-only LCD backpacks:USB and serial control of characters LCDsSupported in common software (LCD Smartie) as 'matrix orbital' displayAdjust backlight from softwareCouple extra pins for buttons500mA fuseUSB upgradable Open source (CC BY-SA)ResourcesManualForumTechsupportThis product is designed by Dangerous, If you encounter any problems when using this product, please request technical support in the forum.