The Previous Glasses Review Site

Glasses Reviews – the search for something under $40

Reviews (with pictures) for a number of online prescription glasses retailers.

Stellar Labs 32-2476 Deep Fringe High-VHF Antenna

A quick look at the Stellar Labs 32-2476 Hi-VHF Deep Fringe Antenna

UHF for the fringe? Lots of options! Hi-VHF for the fringe? Well, there’s Stellar Labs…!

4" duct booster fan pressure mod with caulk

Quick/dirty 4″ duct fan mod: increasing the pressure

Sometimes the best way to find out how well X will work is to give X a try and see!

My Vinker T01-A “manual”

The down side to some of these cheap-yet-complex devices is that if you lose the manual and can’t find one online, your garbage bag often ends up with an extra item in it.

Coleman 100W solar panel cracked diode

Coleman 100W solar panel – voltage but no power/current – quick fix

Since the panel had a 25 year warranty, I expected at least 1 hassle-free decade. 3 years was a little quick to be pulling things apart. Oh well.

Arduino custom backslash

Arudino workaround: backslash (\) shows on LiquidCrystal as the Yen symbol

Solving an odd little issue where instead of printing the backslash character to my Arduino-connected LCD, it was printing the Yen (¥) symbol!

1.5 years later: My Gudcraft aka Aleko Wind Turbine (WG600/WG700)

Looking at this small scale wind turbine. Does it generate power? Yes. Does it generate *lots* of power? Well…

Arduino Wind Turbine MPPT charge controller

MPPT sucks for wind – making my own wind turbine charge controller with an Arduino

After buying/trying tonnes of controllers in an effort to try and utilize all the power my wind turbine can generate, I found a solution: Design and build my own controller!

BougeRV 30A Charge Controller (Front when powered on)

BougeRV 30A – a very poor solar charge controller (review)

A “30A” charge controller that struggles to provide 5A.

DROK LTC1871 - DC boost converter

Detailed info (and review) for the DROK LTC1871 3.5v-30v DC boost converter

A solid little DC boost converter I’ve had for the last year.

Vinker T-01A Main Unit

A Short Review: Vinker T-01A (Home Alarm System)

The parents wanted an alarm and I got to pick and install one. Taking a look at one of the most cost-effective home alarm systems I could find!

Vermicompost Calculator

(possibly) The first and only red wiggler reproduction calculator on the web – by me!

Yes, I made a calculator… for worm things… Also optimized it for performance because I like performance, even on the web.

Vermicompost Calculator

Red Wiggler reproduction calculator and more! (Vermicomposting)

An online vermicomposting calculator (simulator) specifically for red wiggler worms. Made by me!

DCS-933L grow tent

Using the D-Link DCS-933L for time lapse video via FTP (review-ish)

A look at a D-Link IP camera – one of the few cameras that let you upload images to an FTP server at regular intervals. And all without needing to install apps or use “the cloud”.

GLW 50W Flood LIghts

A look inside 2 GLW “50 Watt” LED Flood Lights

Recently grabbed a couple “50W” led flood lights. Electrically hazardous, missing screws, and mislabelled drivers – what’s not to love?!

pH meter used for testing

My attempts at adjusting pH (for plants) with vinegar and citric acid

Here I adjust the pH of water used for watering plants grown indoors. Tap water + pH meter + vinegar/citric acid.

BladeRunner Atom MAV - The goodies in the box

BladeRunner Atom MAV: A review and Mode4 to Mode2 conversion how-to

Looking at the little Atom MAV nano, and an in depth guide for soldering to convert this quadcopter from “Mode 4” to the more common “Mode 2” controls.

Air Hogs Helix Ion - The Hand Size comparison

The Helix Ion: Durable, a bit clunky, and has an interesting charger (quadcopter review)

The Air Hogs almost-indestructible “Helix Ion” quadcopter – a quick look.

Bridge rectified LED

Running LEDs (almost) directly from AC – a brief overview / how-to

Running LED’s from a simple bridge rectifier: a look at my little project.

Bridgelux Vero vs Cree CXB efficiency

Looking for the best LED efficiency: Vero 29 vs CXB3590 vs CXB3070

Collecting data from Bridgelux/Cree datasheets and the Cree tool, and figuring out what’s the most efficient way to go… within reason.