The OKY3415 programmer with Module, ISP, USB designed by OKYSTAR is an AVR associated circuit used to program microcontrollers. It comes with built-in firmware to make programming user friendly and features an on-module USB port that supports multiple industrial protocols. It also has an in-system programming toolkit which enables users to quickly and easily program and emulate a wide range of microcontrollers. It supports a wide variety of protocols including STANDALONE, USB HID, I2C, and SPI, making it ideal for both hobbyists and professional developers. Its small size makes it ideal for use in embedded applications, and it comes with a comprehensive searchable library of example codes and documentation for an easy learning experience.