The Links pasted below are the data sheets that I used to understand and learn more about the charectoristics of the main parts in my program. 

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TPM36 Data sheet:

 

TMP35/TMP36/TMP37 (Rev. H) (analog.com)

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LM2596 Data Sheet:

 

LM2596 SIMPLE SWITCHER® Power Converter 150-kHz 3-A Step-Down Voltage Regulator datasheet (Rev. F) (ti.com)

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Aurduino Uno Data Sheet:

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1682238.pdf (farnell.com)

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16x2 LCD Display Data Sheet:

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HD44780U.pdf (circuitdigest.com)

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