Discover how credit card validation codes work and protect against fraud. Learn about their placement, security role, and examples to secure online transactions.

This Arduino based Water Level Detection and Alert System designed to reduce water wastage, prevent overflow, and improve ...

1. Joints - The Foundation of Movement Joints are the moving links in a robotic arm. They let the arm bend, rotate, or change ...

Obsessing over model version matters less than workflow.

I've been on a mission to unify all my smart devices under one app, and as someone who's running most of his smart devices with ESP32s, the toaster seemed like the next logical step. After all, all I ...

An automatic toll gate system using Arduino revolutionises traditional toll collection by eliminating manual intervention.

Jean] wrote into the tips line (the system works!) to let all of us know about his hacked and hand-wired C64 keyboard, a ...

The HX710(A/B) is a precision 24-bit analog-to-digital converter (ADC) with built-in temperature sensor (HX710A) or DVDD, AVDD voltage difference detection (HX710B). It’s designed for weigh scales and ...

Abstract: Context: Programming education keeps facing chal-lenges. A significant challenge is the mismatch between the increasing student demand and the shortage of teaching workforce on personal ...

The I2CKeyPad library implements the reading of a 4x4 keypad by means of a PCF8574. Smaller keypads, meaning less columns or rows (4x3) can be read with it too. Since 0.3.2 the library allows a 5x3, ...