Hello! I have wind sensor with NMEA serial output. Logical interface - not problem, i use NMEA library. But i have trouble with physical interface: Output from sensor is serial, but this is nor ordinary RS232 or RS422/485. This is "high voltage" logical. So. I have 12 V for logical "1" and i h…

Interfacing 12V logical "1" signal to arduino - how?

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