There's a tiny spring inside! These things are delicate A tiny spring AVR ISP pogo-pin programming adapter Pogo-pin programming adapter at work AVR ISP pogo-pin programming adapter AVR ISP pogo-pin programming adapter AVR ISP pogo-pin programming adapter AVR ISP pogo-pin programming adapter Pogo-pin weak spot covered with blob of solder ATtiny13 LED-strip controller Panic button Texas Instruments TI-30 IMGP7477.jpg IMGP7479.jpg IMGP7478.jpg IMGP7483.jpg IMGP7490.jpg IMGP7481.jpg IMGP7486.jpg IMGP7487.jpg IMGP7484.jpg IMGP7491.jpg AVR ISP pogo-pin programming adapter Using the jig to assemble the pogo-pin adapter Trying to get good pin alignment Assembly jig Wooden assembly jig Assembly jig Wooden assembly jig Pogo-pin adapter with assembly jig Set of holes Pogo-pin adapter PCB Some sort of flower Some sort of flower Piezo buzzer - cleaned Optical smoke sensor Optical smoke sensor Optical smoke sensor Smoke detector - PCB Smoke detector - PCB Piezo buzzer - oxidized Smoke detector / alarm Smoke detector - weak buzzer Jig with pogo-pins