I have been reading numerous tutorials and posts. I have learned ALOT but one thing I can’t seem to grasp is the programming of the micro controller. I know how all the hardware and how to wire the RS232 to the MAX232 converter but its actually the coding of the uC that I can’t figure out.
Basically, I have the GM862 Evaluation Board - RS232 with the GM862 module and I need to code/program a micro controller to have a preset 13 digit numbers such as 800-555-1111 that it will send to the GM862 module and place the call. I’m not sure how to get this to work though. Then to make the call I would like to be able to push a single button that would cause the micro controller to then make the call. Does this make sense?
Oh course the coding would need to interface and be understandable by the GM862 module.
Any help would be greatly appreciated in coding this to work and how to implement the single button.
Thank you,
Chad
I haven’t been able to get much help on this in other forums neither. I was wondering how or where I can go to get this done for me? Is there anyone willing to do it for a little bit of money?
I have so many projects going on right now and have recently been promoted to a new position so I’m running out of “spare time” to research and complete it myself. I don’t have much money but would be willing to pay a little if someone would be willing to program the chip and layout the steps in how it was done so I could go back and change say the telephone number later if needed.
Thanks,
Chad
I glanced at the board. If you are trying to control it using a microprocessor such as an AVR, I would suggest wiring up a serial logic-level interface to the board, bypassing the USB interface. Then follow the serial protocol for the cellular modem.
Implementing a USB Host on a microprocessor is quite difficult.
Thank you Steve. This is what I planned on doing. My problem though is in the Programming/Compiling of the code onto the AVR. I have been looking at the data sheets and WinAVR w/ avrdude and can’t understand the programing logic and how the different inputs/outputs work.
From what I can see this is mostly C language programming. All I’m looking to do is write some code that can be complied and programmed on the AVR to send the serial AT commands to dial a specific telephone number when the chip is activated. I want to activate the program on the chip by pressing a single button. If that means simply powering up the AVR then thats cool.
Thanks again Steve!