ATGM336H

The ATGM336H GNSS module is a Chinese ublox MAX-M8 type clone, suitable even as a drop in replacement. It is based on the AT6558 GNSS SoC.

GNSSToolKit

Making Adjustments

The ATGM336H can largely be manipulated by sending PCAS commands, the documentation for which are supported is very sparse. Most of these I have captured from the GNSSToolKit application. Without GNSSToolKit, one can echo these commands directly to the device.

Description PCAS Command
save configuration $PCAS00*01 echo -en '$PCAS00*01\r\n' > /dev/ttyUSB0
hot restart $PCAS10,0*1C echo -en '$PCAS10,0*1C\r\n' > /dev/ttyUSB0
cold restart $PCAS10,2*1E echo -en '$PCAS10,2*1E\r\n' > /dev/ttyUSB0
factory reset $PCAS10,3*1F echo -en '$PCAS10,3*1F\r\n' > /dev/ttyUSB0
stationary mode $PCAS11,1*1C echo -en '$PCAS11,1*1C\r\n' > /dev/ttyUSB0
GPS Only $PCAS04,1*18 echo -en '$PCAS04,1*18\r\n' > /dev/ttyUSB0
BSD Only $PCAS04,2*1B echo -en '$PCAS04,2*1B\r\n' > /dev/ttyUSB0
GPS+BDS $PCAS04,3*1A echo -en '$PCAS04,3*1A\r\n' > /dev/ttyUSB0
GPS+GLONASS $PCAS04,5*1C echo -en '$PCAS04,5*1C\r\n' > /dev/ttyUSB0
115200 Baud $PCAS01,5*19 echo -en '$PCAS01,5*19\r\n' > /dev/ttyUSB0

Some configuration parameters do not have PCAS values and must be sent as raw hex.

Description Command
Enable DOP Messages echo -en '\xBA\xCE\x04\x00\x06\x01\x01\x01\x01\x00\x05\x01\x07\x01\x0D\x0A' > /dev/ttyUSB0
atgm336h.txt · Last modified: 2023/02/28 02:41 by millerjs
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