hi
I am working on 3G USB GSM modem, I need to interface through PIC controller, would you please share the circuit diagram and interface technique. I would be very thankfull to you .
Neither the 16F84 nor the 16f877 support USB interface directly.
You will have to use a usb to RS232 chips like FT232H or CP2192
The 16F877 has a HW Uart or a SW Uart (via a compiler like CCS)
The 16F84 only has only a SW Uart (via compiler like CCS)
Ok thats fine about the controller, I use C code to program the controller, can you please guide me how can I send sms & received by using the GSM USB 153 U by huawei
Hi I have tried and search EDA board but can't find the related information which meets my objective. I would appriciate if you guide me to build an interface to connect GSM USB 153 through which I can send and received SMS.
It is possible! I have done it using PIC24FJ starter kit with tplink MA180. It could accept and response to AT commands and could send and receive text SMS using GSM.
I am also trying to connect Huwai standard USB dongle based modem to PIC24F. For evaluation I have bought DM240011 from Microchip. Its a standard USB OTG dev. tool.
Library support is provided. Can you please provide how to start writing an application to fire AT commands as you have already did this.
Please reply. Thanks for valuable response in advance.
- Shivam K.