Zero-Code Hardware Macros: Build Your $8 Arduino Auto-Keyboard in 30 Minutes

# Zero-Code Hardware Macros: Build a $8 Arduino Auto-Keyboard & Mouse in 30 Minutes > Core question: Can a non-embedded engineer build a plug-and-play hardware macro pad that presses keys and clicks the mouse without touching the OS kernel? One-line answer: Yes—one Arduino Leonardo, one Qt client, and the steps below are all you need; no drivers, no firmware blobs, no assembly code. ## 1. What Exactly Is “KeyPresser Hardware” and Why Bother? Summary: A two-part project (Qt GUI + Arduino firmware) that turns a Leonardo board into a USB-HID keyboard/mouse and lets you schedule or randomize any input sequence. …