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Online random number generator for MSP430 microcontroller 16 Jun 2013 | 06:26 pm
This is an online random number generator for a MSP430 microcontroller, you can use it to include some randomness in your project. When using these static random numbers in more than one MSP430 contro...
Countdown timer with random intervals 30 Apr 2013 | 07:49 pm
After the random timer based on an Attiny24 I have build a larger version of the random countdown timer. The Attiny24 had a single channel and two potentiometers. In this countdown timer the number of...
Time server using 1PPS GPS receiver 28 Apr 2013 | 07:53 pm
What is a time server? A time server gets its time from a reference time source. That source can be a another time server, a local time source such as a rubidium or cesium atomic clock. In this post I...
Joule thief AA battery led circuit 14 Jan 2013 | 02:16 am
Here I present to you a single AA battery led circuit. This circuit is a variant of the Joule thief in that it contains 2 transistors and a simple standard 2 lead inductor instead of a hand wound 2 wi...
Ext4 online defragmentation using e4defrag for Centos 6 11 Jan 2013 | 03:11 am
I made an update for the e2fsprogs rpm for Centos that enables ext4 online defragmentation using e4defrag. The Ext4 file system supports online defragmentation since kernel version 2.6.28. Centos 6 ha...
PHP-FPM Centos 6 for PHP 5.3.3 rpm installing and configuring howto 6 Jan 2013 | 03:39 am
I have compiled for you a PHP-FPM Centos 6 rpm that can be installed for PHP 5.3.3. This rpm works with the standard PHP version that is installed with Centos 6. With this you can configure Apache to ...
Howto IPv6 NAT in Centos 6 1 Jan 2013 | 06:46 pm
Since the release of the Linux 3.7.0 kernel IPv6 NAT is possible. There is much discussion about whether IPv6 NAT is needed. You just do no need it when you have enough IPv6 addresses. However, maybe ...
Random timer circuit using a Attiny24A 31 Dec 2012 | 02:28 am
This random timer circuit is based on a Atmel ATTINY24 avr driving one power relay. You can use this circuit to switch on and off other circuits randomly. For example, when using this circuit on a mod...
TDA2030A Amplifier DIY Kit Schematic and soldering howto 29 Dec 2012 | 05:27 pm
This howto shows you the schematic of a popular TDA2030A amplifier DIY kit which is sold on eBay and other places. After ordering the kit on eBay (search for “TDA2030A Audio Power Amplifier DIY Kit”) ...
Online random number generator for AVR microcontroller 24 Dec 2012 | 12:24 am
This is an online random number generator for an AVR microntroller, you can use it to include some randomness in your project. When using these static random numbers in more than one AVR controller, t...
