ClackLab Hardware Lab

Technical Guides & Engineering Whitepapers

Behind every millisecond test on ClackLab lies electromechanical physics, firmware debouncing algorithms, and USB protocol design. Explore our in-depth guides to understand how your peripherals communicate with your machine.

Keyboard Engineering

Mechanical Switch Chatter & Contact Bounce

Why mechanical switches double-fire, how contact leaf oxidation creates electrical noise, and how firmware debouncing algorithms (eager vs. deferred) filter bounce.

Matrix Architecture

NKRO vs. 6KRO & Ghosting: The Rollover Guide

How switch matrix sneak paths trigger ghost keys, why per-switch diodes enable full rollover, and how keyboards bypass the legacy 6-key USB HID boot protocol.

USB Protocols

1,000Hz vs 4,000Hz vs 8,000Hz Mouse Polling Rates

Breaking down USB 2.0 High-Speed microframe scheduling, frame-alignment on 240Hz+ OLED monitors, CPU DPC latency spikes, and wireless battery trade-offs.

Switch Metallurgy

Mouse Double Clicking & Optical Switches

Why modern 3.3V wireless mice suffer from contact starvation, Omron microswitch leaf fatigue, and why infrared optical switches are physically immune to double clicks.

Neurology & Latency

Human Reaction Time: Biology & Latency Stacking

From retinal phototransduction to muscle contraction: why auditory reflexes beat visual reflexes, Hick's Law, and how hardware latency stacks on top of biology.