I have a Huawei e160 3g usb modem, that i want to connect to an arduino . When connected to the pc, the modem is creating a serial port and simulate a cd rom with a software on it. I can then send at commands selecting the port created. Trying to connect it directly to arduino it does't work , because(i think) the data wires are not typical rx/tx serial connection. I tried to look for the pinout of the modem to find the rx/tx , but i could only find jtag pins.
I want to use the modem only as a gsm, sms sender and reciever with at commands.. (no internet or data transfering) I don't wanna use a usb shield with it( later i want to use it with an arduino mini pro). Does anyone have tried connecting a 3g modem to an arduino without a usb shield? Or have a sugestion to how can i connect it?