Hoe rekent ABN-AMRO?

Er zijn vast mensen die het nog preciezer weten dan ik, maar ik denk dat ik ongeveer weet hoe aflossingen op een hypotheekbedrag bij ABN-AMRO berekend worden: met maanden van 30 dagen.

Run Ubuntu Desktop on a Raspberry Pi 4

A Raspberry Pi 4 is a pretty competent computer for a student’s desktop. I have setup two of these for my kids and apart from a few proprietary packages, everything works well. However, Raspbian won’t cut it, mostly because its’ Firefox is way too old. Hence we’ll go install Ubuntu Desktop.

Slimme meter lezen met Zabbix en OpenWRT

Mijn slimme meter stond al jaren te wachten op uitlezen. Nu heb ik het even gefixt – met Zabbix. Gewoon, omdat als je een hamer hebt, alles eruit ziet als een spijker. Ik heb Zabbix en ik lees dus uit met Zabbix.In English: I’m reading my smart meter with OpenWRT and Zabbix. It’s not perfect,…

Laser tag – optics

As noted before, laser tag actually is infrared tag. To be able to focus the infrared beam properly, you need a lens.

Let’s build a laser tag – part 1

I’ve been building a laser tag system for my kids and it’s in a working state now. So I’m sharing my instructions with the rest of the world here. Enjoy! It might take some time to document everything, so stay tuned.

Set Windows time at boot – the ultimate reference

While preparing some 200 non-domain-registered Windows 7 systems as POS systems, we came across a couple of dead BIOS batteries. Time on these machines would start 1-1-2009 every time and while you could forcibly setup the correct time by pushing a couple of buttons inside of Windows, the question arose if it would be possible…

Upside Downternet v2.0

I’ve always wanted to implement upside-down-ternet, but lacked the resources. But now it’s 2016 and you can make your wifi-stealing-neighbour’s web browser do all the hard work. This means that a simple OpenWRT router will have enough power to flip the internet – all of it, except for the ssl-protected areas.