[En-Nut-Discussion] Motorola G18 how-to ?

[Harald Kipp]

At 23:51 12.05.2006 +0200, you wrote:

>Is there any reason of doing G18 (3.3V) -> Max323 RS232c (+/- 12V) -> 
>max323 Ethernut(3.3V) ?

Not for Ethernut 3. However, Ethernut 1 and 2 are 5V and you
need to make sure, that the GSM modem is 5V tolerant. If
not, you need a 3.3V buffer with 5V tolerance, like the
74LVC or 74LCX families.

Harald