davemaster
Joined: 23 Jan 2007
Posts: 80
Helped: 1
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 30 May 2008 10:26 Re: Connection problem between PIC16F877A and Sony Ericsson |
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| elektrog wrote: |
Hi everyone,
I have a project and I want to make communicate my cell phone and µc each other
for sending SMS. Is there any idea about this topic?
1. Can they communicate without signal converter? ( MAX232 etc. )
Thanks... |
Greetings
It is possible. First, take this in mind: the PIC16F877A works with 5V, and the phone works at 3 or 3.3V; so, we need to convert 5V to 3 or 3.3V interface.
For that, just use a voltage divider with a couple of resistors you find easily at your residence zone, you could protect the 3 or 3.3V side with a 3.3 V Zener in addition to the voltage divider...
Good luck!
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