The botany section moved to a new site
I decided to move the botany section of the blog to a new place. I plan to add a few photos and plant growing instructions / logs every now an then to the botany section and to keep this blog …
Year: 2014
Convert ESP114A to floating ground
I did write a post on powering and using ESP114A power supply some time ago. To make the power supplies even more useful you can also convert one of them to a floating ground power supply. Floating ground power supplies …
Arduino generating two fast phase offset signals
So recently I wanted to generate two fast (40kHz), phase offset signals with Arduino. I have done various modes of PWM and PPM modulation before, but have not yet tried to generate phase offset signals. Actually there is only one …
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Digitalocean 512 MB server performance serving WordPress
I have previously posted about the digitalocean VPS hosting. Here are some details on a performance test I just did. Just for thesting the server I set it up with nginx+php_fpm+mysql. I used a custom set-up droplet with 32bit Ubuntu …
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Using and programming a NEO-6 GPS receiver module
I recently had to programm a NEO-6 GPS receiver module for a friend of mine, that needed it to have a specific baudrate and specific NMEA sentences to be sent. The module was to be connected to a ham radio …
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Wacom Tablet “There is a problem with your tablet driver” Fix
The Wacom bamboo tablet on my computer recently started behaving erraticaly – part of the functions did not work anymore. Trying to access the Wacom preferences from the start menu or from the Control panel just brought up a “There …
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Rei-Labs Legacy
I just recently obtained a safety copy of my old blog site. 😉 when you want to keep your site alive you should really keep a safety copy somewhere. The legacy Rei-Labs.Net blog was actually my second blog, after the …
Virtualbox shared folder between guest (Ubuntu) and host OS
Ok, so this will be just a quick guide and I will just cover the case I had. I have a Windows 8 host operating system and Ubuntu 14.04 as the guest operating system. The guest operating system was already …
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USB to serial (TTL/RS232) converter comparison
There are many integrated circuit products available for the USB to serial (TTL or RS232) conversion on the market. Serial communication protocols like RS232, RS485, RS422, USART, UART, LIN are still commonly used in industrial and commercial applications where only …
Save $10 on DigitalOcean VPS hosting
I recently needed to set up a ssh forwarding server for a project of mine. As I don’t have any permanently running server set up I set up a VPS hosting with DigitalOcean. You can set up an account here …