As of March 13, 2026, there are three active codes available in Meta Lock, all of which are working at the time of writing: ...

Back in 2024, Renesas first released the RA0E1, an ultra-low-power Cortex-M23 MCU designed for cost-sensitive applications, ...

A hackerspace is a place that generally needs to be accessed by a wide group of people, often at weird and unusual hours.

The I2CKeyPad8x8 library implements the reading of a 8x8 keypad by means of a PCF8575. Smaller keypads, meaning less columns or rows (e.g. 5x4) can be read with it too. Sometimes you need to control ...

Abstract: This system presents the design and implementation of a password-based door lock system integrated with LED light control for enhanced security. The proposed system allows password entry ...

Test your logical reasoning with this challenging 3-digit numeric lock puzzle. Analyze strategic clues, eliminate wrong digits, and crack the correct code within 21 seconds. This brain teaser sharpens ...

Arduino sketch for generating pulses needed to control servo drivers such as the AASD-15A used in the SFX100 project and the pt-actuators. The controller is meant for the SFX100 actuator and the likes ...