Hi, I am begginer in this technologie and I need to construct a GSM modem with GR64. What I don’t understand is:
- does GR64 comes with firmware that accepts AT commands and therefore needs only interface (RS232 for example) or does GR64 (as well as other modules) needs to be programmed in full. Can anyone simplify this for me because I can’t find a straight information on what is what.
Thanks to anyone who finds time to help me