Safety: Safe for 3.3V–5V operation, helping protect connected components by maintaining compatible logic levels. Interesting / benefit: Facilitates more projects by enabling easy and reliable interfacing in a variety of 3.3V and 5V environments. Mini form factor: Compact size that fits into tight spaces, boards, and enclosures without adding bulk. Compatibility: Supports standard 3.3V and 5V logic from common microcontrollers and peripherals, enabling broad use across platforms. Practical use: Simplifies wiring and integration, making it easier to design and test projects without voltagerelated issues. Use scenario 1: Prototyping with boards such as Arduino, ESP8266/ESP32, and Raspberry Pi Pico to connect sensors and modules safely. Use scenario 2: Integrating into small, spaceconstrained devices or enclosures where board real estate is limited. Use scenario 3: Educational demonstrations and DIY electronics labs to teach voltage compatibility and safe interfacing. Notes on function and performance: Provides straightforward compatibility across 3.3V/5V systems, designed for reliable operation in everyday hobbyist and development tasks.