The PiIoT is a WAN communications board which provides an HSPA / 3G wireless interface for the Raspberry Pi. Conforming to the HAT specification, the PiIoT also provides location information using an on-board GNSS* solution.
*Please note: the optional GPS fuction is only available for the HL8548-G variant of the PiloT. Please see specification and/or related documents for more information.
The following instructions set up an NMEA feed over the Raspberry Pi serial port.
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Step 1: Connect to the PiloT Using Minicom:
minicom -D /dev/ttyAMA0
Step 2: Change the Speed of the Serial Port to 9600bps:
Change Minicom serial speed to 9600bps and reconnect by holding Ctrl + A, then 'Z' > 'O' > arrow down to 'Serial port setup' > enter 'E' > 'C'.
Press enter, then press 'Esc', then arrow down to 'exit' and press enter.
Step 3: Direct the NMEA Output to the Physical Serial Port:
Step 4: Start GPS Output on the Serial Port:
(See Sierra Wireless HL8548 AT Command Guide for more details of GPS commands)
NMEA sentences should now stream from /dev/ttyAMA0.
Step 5: Stop Running GPS:
Open a Minicom session on /dev/ttyACM0 and enter:
Close Minicom (Ctrl + A, then X > enter).
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