ljunggren.nethttps://ljunggren.net/2026-11-11T12:48:22ZAndreas LjunggrenMarknadsnougathttps://ljunggren.net/mat/marknadsnougat2026-11-11T12:48:22ZBarnens favorit och väldigt enkelt att göra. Alla mått i både volym och vikt.Weigh it, don't measure ithttps://ljunggren.net/weight-not-volume2026-11-11T12:42:45ZMost recipes give amounts in decilitres. In a cramped kitchen like a caravan's, weight is far easier: everything goes into one bowl on the scale.PHP snippet: RGB ↔ HSV colour conversionhttps://ljunggren.net/archive/php-hsv-colour-conversion2026-11-11T12:36:31ZA small PHP class for converting colours between RGB and HSV, handy for twisting pictures and generating captchas.A little better today beats perfect too latehttps://ljunggren.net/better-today-than-perfect-too-late2026-11-11T12:29:06ZA thought that keeps coming back, at work and at home: a small improvement now is worth more than the perfect one that arrives too late.The TRV that cried “1 %”https://ljunggren.net/workshop/trv-that-cried-1-percent2026-11-11T11:44:09ZFor a week, a Sonoff TRVZB in my office convinced me its batteries were dead. What it had really lost was its calibration.LP250 LCD projector: DIY halogen hackhttps://ljunggren.net/workshop/lp2502026-11-11T11:41:56ZTurning an old LP250 projector into a kid-friendly home cinema with a 12 V halogen lamp.A non-linear mindhttps://ljunggren.net/non-linear-mind2026-11-11T11:39:09ZA colleague read my meeting notes and saw how my mind works. Years later, the same shape became this site.BackupPC to the rescuehttps://ljunggren.net/workshop/backuppc-to-the-rescue2026-11-11T11:29:59ZFailed disks, a hosting company's data corruption, burglaries: every time, a proper backup brought things back. BackupPC is one way to get there.About mehttps://ljunggren.net/about2026-11-11T08:50:36ZAndreas Ljunggren: electronics technician turned computer scientist, based in Stockholm.