Here’s a nostalgic vibe of an awesome analog chip from the 1990s era that’s still making an impact in audio designs.

Arduino Real Time Alarm Clock DS3231 with TM1638. Arduino Clock with Battery backup (real time clock), Time, Date, Alarm, Temperature, TM1638 seven segment module output and input, Display Sleep mode.

GitHub is where people build software. More than 150 million people use GitHub to discover, fork, and contribute to over 420 million projects.

Arduino Relay Basics - How It Works and How to Use It. Posted: June 3, 2025 | Last updated: June 3, 2025. Hi, I'm Bill. I'm a software developer with a passion for making and electronics.