Is the space open right now?

Umeå Hackerspace is .

Normal opening hours are:

Remember to check the open status indicator here on the website before dropping by, since it's not guaranteed that anyone has arrived yet. Or just ask on IRC/XMPP.

We are also listed on spaceapi, which has phone apps available. Just search for "spaceapi" wherever you get your apps, install any one you like, then search for "Umeå Hackerspace".

Articles by frink

  1. 555 Class-D Amplifier

    By frink

    A Class-D amplifier made with a LM324 Op-amp, a 555 timer and a N-channel FET.

    I have no idea how something this simple and cheap can sound so good, and even without any kind of filter.

    Time to test out som unconventional "speakers …

  2. Arduino Theremin

    By frink

    Arduinos are truly universal, this one is playing some fine music, almost makes you feel like dancing, doesn't it?

    Used code and schematic from this site: