Lowering the bounce rate

One thing that got my attention after installing Google analytics was bounce rate. The amount of visitors that see the first, landing, page of the site and leave.  The shortest and most accurate description for bounce rate I did encounter was ‘I came, I puked, I left’.… Read the rest


WordPress comment spam

During my usage of Drupal I had almost negligible amount of comment spam. About one or two per month. Those comments were usually containing some links to  not so useful web pages. I got used to removing those comments manually. After running my website on WordPress for a few days I got about 10 spam comments.… Read the rest


WordPress and adsense

Second issue, that made me move from Drupal to WordPress was idea to add adsense advertising to my website. That issue was not really critical, and can best be described as ‘why not?’. Many sites use some kind of advertising, almost everyone is used to it, for those, who do not like ads there are browser plugins to disable it.… Read the rest


Spamassassin and clean SQL database

When starting spamassassin with empty sql database You can see

‘WARN: bayes: database version  is different than we understand (3), aborting!’ in logs.

It should be read as ‘database is too empty’.Spamassassin stores its database version number in database. If it can not find its database version, it dies.… Read the rest


Heater Controller in theory

Controlling temperature in a room can be a complicated task.

It depends on the room obviously, conditions needed in that room, the amount and types of sensors installed etc.

For keeping this system somewhat general, as there should be no artificial limits, starting from simple solutions and then adding complexity seems the way to go. Also this system should still work if some non essential sensors fail.

The system this device is intended to control, composes of a heating element and a heat carrier which distributes heat around the room.