Linux TCP/IP, GreenIT and more…
One best friend has two apartments not far away from each other, the typical human idea was to pay only for one internet connection and connect the another apartment over WLAN.
A little map of the area (the red line Continue reading ‘Yagi Wlan Boosting’
If your are looking at your power socket(European standard) you see two pins. One of two pins is your phase and the other one is the neutral and of course the ground.
The stupid thing is, there is no rule that makes sure that right pin or the left one of your power socket is the phase. There are many rules for electricity, why not for this? Continue reading ‘Electronics basics (high voltage)’
Some weeks ago I bought a really cool book – “Getting Started with Arduino”, which was written by the co-founder of Arduino Massimo Banzi.
This little booklet offers a thorough introduction to the Continue reading ‘Getting started with arduino’
Calculating LED resistor value, this is very easy and the most of you had this in the school.
A typical LED requires 20 mA and has a voltage of 2 V across it when it is working. The power supply for the circuit could be 9 V – Block battery.
For the right calculation you need three values:
1. Power supply (Your Battery 9 V)
2. LED voltage (2 V)
3. The current flowing (20 mA)
Continue reading ‘LED resistance calculation’
It was another great weekend with DIY idea:)
Its a kind of mini lamp for the desk with nice colors.
Continue reading ‘RGB LED Lamp’