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• Converting serial signal (12V-5V) and reading it using Arduino - Electrical Engineering Stack Exchange

Converting serial signal (12V-5V) and reading it using Arduino - Electrical Engineering Stack Exchange

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I'm trying to read some commands from a device that uses non-standard voltage levels for serial communication. It uses 0V for 0 and 12V for 1. For all I know, TTL levels are 0-5V, so if I want to

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