The simple RS232 hub to interface microcontroller peripheral devices with the central processor

A simple interface, which can link up to 32 peripheral devices with the central processor, has been presented in this paper. Peripheral devices can be extremely simple even without a quartz-stable clock. The interface was named RS232 hub. Hub enables that the peripheral devices linked to it simultaneously send and receive data. The peripheral devices are linked to hub with a two-wire line, over which gets power supply and communicates.