Piggybacking a 2nd 74HC595 An old prototype before the upgrade Product of dry solder tip cleaning Product of dry solder tip cleaning What does IKEA think of us? Killed by sand Killed by sand Jena at night Parking spaces Schott Jena Schott Jena Carl Zeiss Jena Carl Zeiss Jena Carl Zeiss Jena Carl Zeiss Jena Intershop Tower Jena Intershop Tower Jena Uni Jena dormitory Intershop Tower Jena Hellma Optics Jena Hellma Optics Jena Jena Lobeda at a distance Parking spaces Piggyback closeup More light hack More light hack Weller WSM 1 - soldering station Weller RT3 tip Weller RT3 tip Weller RT3 tip Weller WSM 1 - soldering pencil Weller WSM 1 - soldering pencil Weller WSM 1 - soldering stand Weller WSM 1 - soldering pencil A strange game... A couple hours of soldering Defective PCB - front side Defective PCB - back side Sugru blob 2 Bike damaged by my heavy U-lock Bike damaged by my heavy U-lock Time for cleaning... again! Quick fix with some Sugru Kneading a bit of Sugru Sugru blob 1