Hi all !
Firstly excuse me for my bad english..
I have a little problem, i programmed my arduinio nano v3 with mini USB and my program work normaly but only when i use the USB connection ( integrated in the arduino, i have just to put my USB wire ).
My application is a compass who are connected at the arduino with i²c bus, and arduino give me 3 values like : "33 -66 34"; with usb connection i have no problem but with RS232 connection ( Tx, Rx and ground ) the response are like : x97\x00\xab\x2e\xac\x66\xga\xab.......
; And with RS232 connection i can't update my arduino
Tha data rate are corectly configured, flow control also..
Do you know what is the problem ?