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What are all Safe, Keypad, and Lock Combination codes in Silent Hill 2? Throughout the game, you'll encounter lots of puzzles that require you to work out a code to unlock a Safe, a Keypad, or a Lock ...

Smart door locks can save you time searching all over for your keys or even making sure everyone has one. Often starting with an electronic keypad lock as its base, this type of lock can offer a range ...

This project demonstrates Li-Fi (Light Fidelity) communication between two Arduino boards using visible light for data transmission. Text data is transmitted using an LED and a 4x4 keypad on the ...

If infinity mirrors aren’t cool enough, the 10-foot-tall infinity portal should blow you away. Strictly speaking, the mirror itself is only 7’x4′, but you’ll still find yourself engulfed in the ...

Abstract: Today, installing a home security system is a critical study in implementing cutting-edge technology to attain this purpose. One of the most useful technologies to allow remote monitoring of ...

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We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› by Rachel Cericola The Ring ...

Looking for the Hospital Box code solutions and how to get the key in Silent Hill 2? In the Otherworld version of Brookhaven Hospital, this grand puzzle will have you searching the building's depths ...