The Keypad library is designed for driving matrix style keypads (matrix decoder) when using the Arduino platform. It uses the standard method of selecting a column and scanning all the rows to see ...

Most guides for how to program your garage door keypad are super confusing! I tried to make a coherent one. If you thought ...

Here’s something fun from [Chad Kapper] over on HackMakeMod: Escape Room Lockbox with the Cheap Yellow Display. You may have heard of the “cheap yellow display” (CYD), so-called due to the board’s ...

You're currently following this author! Want to unfollow? Unsubscribe via the link in your email. Follow Lee Chong Ming Every time Lee Chong Ming publishes a story, you’ll get an alert straight to ...

December 31, 2025 • A few years back, many politicians were raising the alarm about the dangers of "CRT" in schools. Today, the new risk to public education is "DEI." What do both of these moments ...

This project demonstrates Li-Fi (Light Fidelity) communication between two Arduino boards using visible light for data transmission. Text data is transmitted using an LED and a 4x4 keypad on the ...

With "vibe coding," almost anyone can be a programmer. Just ask an AI to generate code through a ChatGPT-like conversation, and refine the output. This technique is rapidly becoming a popular way for ...