For the next project they were used the following components: a biometric sensor, push buttons, 16x2 LCD screen, electric plate, an Arduino, relay, RTC (real time clock), internal storage memory. With the components, a biometric security system was designed to open the door itself that uses the fingerprint, and data storage in SD (secure Digital), using the CC + programming language for simple commands as a new fingerprint registration, deletion ID (identification), and also data storage in an

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... D (secure Digital) which will allow us to know the hours of staff entry through the RTC sensor (real time clock), days for week and most importantly security in the laboratory in which it was implemented. This in order to facilitate the collection of information in a simpler way, using a database that is stored in an internal storage memory using a blog of notes for registration, and thus facilitate the control of logbooks, and in case if necessary, you can evaluate the conditions of the area indicating when it was the last access to the preventive maintenance laboratory, where it was implemented. The results obtained were the rapid accessibility to said laboratory with the fingerprint, as well as the storage of data, which are visible in the document protected in the internal memory