The module of the Raspberry Pi microcomputer is based on the Broadcom BCM2835 SoC unit. Generally, the SoC (system - on - the chip) defines the structure that includes a complete microprocessor system, so there is the central unit (CPU), FLASH or ROM, EEPROM and RAM memory, digital and analog devices, and also the analog-to-digital and digital-to-analog converters, as well as serial interfaces