Posts tagged ‘tutorial’

How to Drive a Latching Relay

Latching relay (a.k.a. impulse relay) can be turned on and off by momentarily applying a voltage across the relay coil. The relay would maintain in its last switched state without the need to maintain the coil current. In this post, I will show a simple circuit which can be used to drive such relays. In the video towards the end, I also included more explanations and some demonstrations. Continue reading ‘How to Drive a Latching Relay’ »

Setting up WordPress on Ubuntu Server — Step by Step

I wrote a tutorial on how to setup WordPress on Ubuntu Server back in 2007. While the setup steps have largely remained the same from version 6.10 to 8.04 (both are long term support LTS versions), I decided to create an other guide focusing on the setup processes with Ubuntu Server 8.04. Continue reading ‘Setting up WordPress on Ubuntu Server — Step by Step’ »