I need to send AT commands to a GR64. I’m using a MAX232 to convert RS232 to TTL levels for input to GR64. I’ve wandered the forums to no avail. I have 3 pins from RS232 (from PC) hooked up (DTM1, DFM1, and ground). I got the RS232 link (through the MAX232) to work with a microcontroller (that I w…

AT commands via UART (RS232) from terminal to GR64

cfjell September 13, 2009, 9:39pm 3

Apparently I just needed to look at UART1 diagram for Q64.
wavecom.com/modules/movie/sc … Rev003.pdf

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