User enters the password using the keypad. LCD displays whether access is granted or denied. You can modify the code to control a door motor/lock mechanism.

Arduino controls the entire process, such as taking the password from a keypad module, comparing passwords, changing passwords, turning the servo motor, and sending the status to the LCD display. The ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I ...

Recently, ‘Liquid crystal display (LCD ... Here we compare LCD and OLED devices based on these metrics one by one. The last finding is somehow counter to the intuition that a LCD should have ...

The iPhone 17 is expected to get a bigger and a smoother display. The iPhone 17 is one of the most highly anticipated smartphones of 2025. Despite rumours of a slim new model being introduced are ...

Meanwhile, Diego Paez will be gunning for his first win in ONE Championship after surrendering a split decision to Sean Climaco in his promotional debut. 13 years older than his opponent ...

At Computex 2025, Samsung decided to show off its UT One tech. It stands for Ultra-Thin OLED structure, and it’s looking to revolutionize OLED displays, in a way. It’s thin, light, and more ...

One aim of the Storehouse is to expose the museum’s inner workings, through displays delving into all aspects of the conservators’ job – from the eternal battle against insects to the ...

The rollout of Qi2 magnetic wireless charging for Android devices is a key enabler, allowing phones to be easily docked horizontally like smart displays. One of iOS’s standout features is ...

A mechanical keyboard with a built-in display may sound practical, but limited resolution and questionable value raise doubts ...

be aware of this one. The Nacon Revolution X Unlimited has the Xbox Elite Series Controller 2 firmly beat on inputs, I would say. Hall Effect sticks are grand, and the LCD display and charge dock ...

Ahead of this Tuesday's Google I/O developer conference, where AI is expected to be the star of the show, Google unveiled a massive Gemini update on its Android Show event, further expanding the ...