The source code for the calculator has been developed using the Arduino IDE. The Adafruit SSD1306 OLED display library and the Keypad.h library are required. Once the libraries are added, the code can ...

An Arduino project implementing a security alarm system featuring PIN code access via a 4x4 keypad, status updates on a 16x2 LCD, motion detection using an HC-SR04 ultrasonic sensor, and ...

Estimate your monthly student loan payments and the total amount you'll pay, including interest. Many, or all, of the products featured on this page are from our advertising partners who ...

Estimate your 2025 federal refund or bill using our free income tax calculator. Enter your income, age and filing status to get started. Annual gross income Think of this as your salary ...

To get the most accurate quotes, you’ll need to contact insurance providers. Use our auto insurance calculator below to get an estimate of your premium without having to provide any personal ...

Our mortgage calculator calculates your home loan repayment based on the amount you borrowed. You are also charged interest on the outstanding balance of the loan. If you have chosen to finance your ...

Below is a simple scientific calorie calculator and five evidence-based ... Research shows that people who use calorie-tracking apps to monitor how many calories they consume may be more at ...

Our interest rate calculator below allows you to gauge how much money you would save from a rate cut. Enter your loan amount, the length of your loan, and your existing interest rate, then select ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...