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Author Topic: connect two ardui  (Read 1047 times)
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Hi I am trying to build  serial connect between two arduino baords with radio connection.

The recipient module gets values from 0V to 0,8 V. So I boosted up the signal that 0V stays 0V (digital 0) and everything grater than 0,6 becomes ~ 5V (digital 1).

Is it correct that the serial input (RX) accepts ~0V als logigal 0 and ~5V als 1??

Thanks for your help!
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berlin
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i couldn't find information on the site but see Mellis' answer here :
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1159424394

Arduino or the Atmega8 on it uses TTL serial, which is ~0V and ~+5V for LOW/HIGH.

kuk
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