Blender – Grass

May 1, 2017

Node Editor Render output   Source file Grass.blend    

Blender Keyboard Map

May 1, 2017

https://wiki.blender.org/index.php/Doc:2.4/Reference/Hotkeys/Map https://www.katsbits.com/tutorials/blender/useful-keyboard-shortcuts.php http://www.giudansky.com/design/51-blender-map

Blender – Coffee cup tutorial

May 1, 2017

Blender interface (Some non-intuitive stuff explained here – important) Coffee cup tutorial Source File Blender_coffee_cup.blend Press F12 to render.   Getting started with Blender Introduction to hard-surface modeling with Blender https://www.youtube.com/user/blendercookie/playlists

Windows Gadgets

April 13, 2017

I use Windows Sidebar Gadgets (originally developed for Windows7) in Windows 8/10. You can install 8GadgetPack from the internet to do so. I like being able to use my computer as an alarm clock to show me a message after X minutes or at a specific time.  Most countdown / alarm clock timers play a […]

Arduino + HC-SR04

November 4, 2016

Description The HC-SR04 ultrasonic sensor uses sonar to determine distance to an object like bats do. It offers excellent non-contact range detection with high accuracy and stable readings in an easy-to-use package. From 2cm to 400 cm or 1” to 13 feet. Its operation is not affected by sunlight or black material.   Acoustically soft […]

Arduino + WS2812

November 2, 2016

Description You can purchase long flexible strips of small surface mounted LEDs that come on a spool.  You can cut the strip to length at the cut marks.  You can solder strips together by using the solder pads. There are a number of different type of SMD (surface mounted device) LEDs available: The most common […]

Arduino + Mains power (433MHz TX + Safe)

November 1, 2016

Description Do NOT interface an Arduino board with any mains power cabling, components, etc.  However, rather than telling you what you can’t do, the polite thing to do would be to at least provide you with a solution how you can achieve the desired result in a safe way. Remote Control Mains Operated Switch In […]

Arduino + Relay

October 30, 2016

Warning Do NOT use this tutorial to connect a relay to 230Vac mains power.  I have blown the cap of a LED by connecting it directly between +5Vdc and ground once.  I have melted an electrolytic capacitor by connecting it to a voltage higher than it was rated for.  There are not too many people […]

Arduino + Safety

October 30, 2016

Electrical safety considerations This article is a strong warning to not open or manipulate any mains powered electrical equipment.  Do NOT interface an Arduino board with any mains power cabling, components, etc. This document provides some basic guidelines how to make electronics equipment electrically safe.  If anything I hope you will learn something from this. […]

Arduino + DS1307

October 28, 2016

Description A Real Time Clock (RTC) is basically just like a watch – it runs on a battery and keeps time for you even when there is a power outage.  Using an RTC, you can keep track of long timelines, even if you reprogram your microcontroller or disconnect it from USB or a power plug. […]