When you want to try out a new microcontroller or a peripheral device, you are often faced with the question of how to control it over an SPI, I2C or UART interface or how to access it from a PC. Desktop and laptop PCs do not have these interfaces, so you need to look for a suitable host interface adapter. That also involves installing or adapting drivers. DoubleSPIder simplifies all this, because it can connect virtually all devices with each other.DoubleSPIder is an interface converter in the form of an external adapter that provides three standard serial interfaces commonly used for microcontroller projects.