Another MCU <-> Cellphone problem

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Sokol525

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im using PIC18F452 @ 20M and Siemens M55 to send and receive SMS and calls, and it works gr8 but.. every time when phone is ringing, or call is active, all messages (at-commands)that mcu gets from phone is garbage. Phone sends them as it should(checked with Hyper-Terminal and DockLight), but somehow mcu gets only garbage.

Can anyone help me on this?
(sorry about bad language)
 

The phone ringing must be corrupting the data.
Try shielding the ckt from the cell phone with a mild steel or aliminum shield.
 


Hi Sokol525!! I'm trying to make a PIC with an M55 mobile, but it's difficult to me to send and receive SMS (only tested yet on hyperterminal) and I want some more information about how do you do to make this, send and receive SMS with this mobile if you are now over the forum,
Thanks for advance.
max
 

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