I've got this amazing tool for a while, I never really talked about it, so I think it's time. It's a component tester, relatively cheap, but quite surprising in terms of capabilities. It works on transistors, LEDs, inductors, capacitors, resistors, diodes, among a few others. It can detect the component and present it in a graphical way, providing its basic properties. For instance, it can give you LCR meter readings, distinguish between BJT and MOSFET transistors, NPN or PNP transistors, detect their gain and threshold voltage, and measure a diode's forward voltage. It's quite useful actually, although it typically comes just as a PCB with an LCD, which makes it a bit unpractical to use. And for that reason, I decided to design a 3D printed case for it and the 9V battery that powers it.
August 15, 2019
Having a PCB ruler in the hackerspace has always been an interest at our hackerspace, but we never actuallly designed one, until now. PCBWay has kindly offered to make some of our PCB rulers. There are quite a lot of PCB rulers out there, but I always thought they could look better, so I designed my own, and thus something that is both useful but equally beautiful. And since eLab hackerspace logo is black and white, it only made sense to use a supper cool matte black soldermask with white silkscreen. As for the copper layers, nothing looks better than gold on black!