Design of MCU Solution for Ultraviolet Sterilization Lamp
The principle of the ultraviolet sterilization lamp is similar to that of ultraviolet disinfection lamps. Ultraviolet light with a wavelength of 254nm is easily absorbed by biological organisms. Ultraviolet light primarily acts on the genetic material DNA, damaging the molecular bonds of DNA and RNA, leading to the death of bacteria as they can no longer reproduce. Ultraviolet light can ionize ultraviolet light at a wavelength of 185 nm, generating oxygen ions. The free oxygen ions are unstable and combine with oxygen in the air to produce a strong oxidizing agent, ozone, which can also kill bacteria. The ultraviolet light can eliminate various bacteria without the need for any human or chemical additives, making it a purely physical disinfection method with no secondary pollution.
Advantages and functions of ultraviolet sterilization lamps:
(1) Environmentally friendly, no pollution to the environment
(2) Simple and convenient to use, just turn on the light to sterilize
(3) Provides illumination while sterilizing
(4) Strong sterilization effect, unaffected by the environment
Introduction to the development plan of ultraviolet sterilization lamps
The ultraviolet sterilization lamp solution features a simple peripheral circuit and high stability. It allows for adjustable light intensity, and a secondary protection switch prevents accidental activation in households. Additionally, the ultraviolet sterilization lamp is suitable for use in bathrooms, kitchens, toilets, basements, and other locations. The main control chip for this sterilization lamp development plan uses a COETEC microcontroller, which operates in the following modes:
(1) In normal mode, it operates in low power consumption mode with adjustable brightness.
(2) In strong mode, the brightness of the sterilization lamp is at its maximum, with increased power consumption.
(3) Wide voltage range: powered by lithium batteries.
(4) Effective range: 10 square meters.
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