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1  Products / Arduino Due / Re: SoftwareSerial for Arduino Due on: January 20, 2013, 06:54:56 am
LucaV72 wrote:
I have 2 MC33290 chips but, I have discovered that it is simply a voltage level converter. Therefore, I am using a LM393 DIP chip to convert my 12volt K-line to 5volt for my Arduino. Basically the LM393 is set-up as a dual comparator, one comparator is the TX from the Arduino with it's collector tied to 12v, and the other comparator is from the K-line of the bike with it's collector tied to 5v.

Have you mentioned that the DUE I/O-Pins are specified for 3.3 Volt only, 5 Volt would damage the chip.
Best regards Gerd
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