Poppy Playtime: Chapter 4 features a couple of puzzle sections that involve finding codes. Here's how to find them all.

A standard telephone keypad, with four rows of three keys each. The top row consists of 1, 2, and 3, with keys continuing down in order until the last row, which is usually *, 0, and #. Such a keypad ...

Betteridge’s law applies, but with help and guidance by a human who knows his stuff, [Ready Z80] was able to get a ...

Multicore processing boosts performance and energy efficiency in many coding situations. Bare-metal algorithms further ...

April 18, 2026 • The Trump administration's recent military actions have had certain observers asking... are we going full empire? But Daniel Immerwahr, a historian and the author of How to Hide an ...

Well, this might just be a Hackaday first. Certainly not the circuit sculpture part, nor the wearable aspect, but the ...

This project involves using an Arduino to measure distances using an ultrasonic sensor and controlling a buzzer and LED based on the measured distance. The provided Arduino code performs the following ...