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Unpacking my Keweisi KWS-V20 USB Tester

I’ve started to taking out from storage some of my electronic related tools to start on some personal projects. Lately, I’ve had the need to measure voltages and currents on USB devices and it’s a pain to setup circuits just to test them.

After, searching the Internet to find a solution, I’ve found out about this small USB tester that allows easy measurement of a USB device’s voltage and current. It also has other features that allows a user to measure other parameters like milli-ampere-hours and the elapse time. This became very useful, for instance, in cases where I want to find out the charging capacities of lithium batteries.

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$1 Home Design 3D App for iOS/macOS

I’ve been using an iOS app called iDraw (now called Graphic when Autodesk acquired it). I use it for creating 2D vector graphics for apps and web site I create. It’s great since Graphic (iDraw) is available both on iOS and MacOS.

Recently, I’ve been trying to learn how to create 3D graphics on MacOS for some personal home projects using SketchUp. For personal projects, SketchUp is actually free. I started looking for an affordable 3D graphics app that runs on iOS (especially on the iPad).

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