The PCB fabrication and assembly industry does have standards, but enough people don’t follow these standards that the manufacturers are obliged to assume that no one does The PCB fabrication and ...
One of the questions that hobbyists ask over and over is how to select the value of a current limiting resistor for an LED. Usually the seat of the pants response is: “Subtract 2 V from the supply ...
If you’ve worked on a project with small LEDs, you know the frustration of determining their polarity. This ingenious LED Probe from [David] packs a lot of useful features into a simple, ...
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