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2.4G Wireless Supported

A project log for 8‑Key Macro pad with 3.5 inch LCD

The 8-key macro pad with screen isn’t just another macro pad — it's a visual, scriptable, dynamic control deck you build and own.

shu-yangSHU YANG 11/21/2025 at 11:270 Comments

To keep my desk cleaner, I added wireless functionality to my Macro Pad. My design goal was to make it truly plug-and-play without relying on any background software, so we went with a 2.4 GHz receiver solution. 

The receiver presents itself as a USB HID device to the computer, while communicating with the keyboard over Wi-Fi, enabling a clean, cable-free, and seamless user experience.

It works right out of the box — no drivers and no tedious Bluetooth pairing needed.

The macropad communicates with the receiver over ESP-NOW, delivering impressively fast and responsive performance. I’m really happy with how well it works.

Since it doesn’t rely on any background software, I can use it to enter my password wirelessly and log in as soon as my computer starts.

Cool, right?

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