Good evening everybody --
My problem is this: there's a pulsing LED on my power meter that I'd like to use to track my electricity usage. The LED pulses 500 times per kWh usage, that translates to a pulse every 20s in normal times, but could go up to a pulse a second.
I can do some soldering off a diagram and I do use a 1-wire bus to measure other stuff (Linux computer running 24/7 taking regular samples from some DS1820 temp sensors), but am very much not into hardware. What would be the easiest way to capture those pulses? 1-wire is preferred, but I'm happy with a serial connection, too.
Thanks for suggestions!
Marc