Its high-performance, low-power AVR 8-bit microcontroller, advanced RISC architecture, high endurance non-volatile memory segment, special functions of the microcontroller, power-on reset and programmable Brownout detection, internal calibration oscillation The device, external and internal interrupt sources, and six sleep modes: idle, ADC noise reduction, power saving, shutdown, standby state, and standby expansion help it complete complex functions. Arduino is a convenient and flexible open source electronic prototype platform.