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Category: tech

How to Remove and Replace Keys on Lenovo ThinkPad T450s (with pictures)

This guide is for removing keys off a Lenovo ThinkPad T450s and should also work for the T430, T440, T450, […]

Adding 18650s and DC Power to Hot Shoe Video LED Light

  I use Neewer’s hot shoe LED lights for a variety of purposes – photography, video, and scanning negatives.  The […]

Flashlight Adapter for GoPro Mounts and Helmet Mount

This how-to concerns making an adapter to hold a flashlight on a standard gopro mount.  It allows you to mount […]

How To Scan A Lot Of Film Negatives Using Your Camera

Most dedicated film scanners don’t scan negatives as well as your camera. If you spend anywhere between $50-$200, you’ll first […]

Why Typedef Is Used For Structs In C

At first glance, adding a typedef to a struct in C seems to complicate the definition. However, it simplifies the […]

Atmel ATtiny ATmega AVR Quick Code Reference

  I usually forget bitwise operators, basic variables, and functions when coding in Atmel Studio for an ATtiny or ATmega […]

Kawasaki CSR 250 & 305 1979 – 1982 Manuals

I had a hard time finding this online for free.   This manual is for the following models: Kawasaki KZ […]

Simple Automatic Volume Control with Arduino

This was for a pair of outdoor speakers in front of KMNR, my college radio station.  KMNR was receiving complaints for […]

Designing a Single Op-Amp Triangle Wave Generator

  While this is not my design, this is my analysis and derivations. I used this in my sound reactive lighting […]

LED Sound Reactor – All Analog Approach

In the winter of 2013, LED strip lighting hit its tipping point – a big rise in popularity. A year beforehand, in […]

Motorcycle Seat Repair – Liquid Electrical Tape

The #1 vinyl repair kit on Amazon has 2.9 stars. And it’s not made to fix an 10″ split seam. […]

Motorcycle Brake/Turn Light PCB

A stranger off eBay got me pulled over, from across the world. I have a 1983 Kawasaki CSR 305 that has […]

LED Strip Current Draw and Power Consumption – A Simple Reference Chart

Trying to figure out which power supply, transformer, or wire gauge you need for a LED strip project?  Look no […]

Best Shortcuts in CircuitMaker by Altium

Here’s a list of the most useful shortcuts in CM – more graphical and intuitive than the built in shortcut […]

2×15″ Home Subwoofers, Car Amp, & Server Power Supply

After half a semester of college, I learned that my 8″, 40W woofer wasn’t enough.  I wanted something bigger, but […]

Designing and Building a CNC Machine

A summary of my homemade CNC machine, built during my junior and senior year of high school.

Making a Computer Jog/Scrolling Wheel

  The idea is simple, take the scrolling mechanism out of a mouse, and move it to a large, heavy spinning […]

Logitech Z340 2.1 Pinout and Reuse

Logitech has a large presence in 2.1 systems, where price and appearance dominate.  This sub is designed to trick you, there’s […]

Mazda 2 Quickest Subwoofer Installation Ever

  Running wire, head unit adapters, fuses, and less trunk space all suck. Let’s not do that. Modular setups seem […]

Powered Subwoofer for Your Car and House

I have a thing for subwoofers, convenience, and low cost. Arguing over DVCs in $300 subs isn’t my thing. This 8-inch tube […]

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