I'd really like to know why it's so much easier to get a temperature sensor for a Raspberry Pi that comes with dangling leads, wire it to a board, write my own driver for it, etc., than it is to find a USB temperature sensor with an open--source driver on Amazon.
@rob Back in the day I attempted to source a simple USB pushbutton. It ended up being such a bear that I soldered a button to an Arduino and fed the push signal back to the computer over serial instead.
... which almost turned into a mistake. Did the math wrong on my voltages and put not nearly enough resistance in the circuit, resulting in a *very* warm pushbutton.
