User manual

GHI Electronics,LLC Embedded Master User Manual
Supported Devices
USB GPS
USB GPS devices do not have a specific class but since original
GPS devices are serial devices, it would make sense to develop
USB GPS devices that will show on Windows as a virtual COM port.
This way, any existing software that uses serial GPS devices can
use USB GPS devices as well.
We have tested a couple of these GPS device and they had Prolific
chipset inside. This wasn't a surprise because most USB to Serial
cable converters use Prolific chipset as well. As Embedded Master supports Prolific
chipsets, it can communicate with these USB GPS devices as well.
14.1.1 Magnetic Strip Reader
Magnetic strip readers emulate a keyboard. Once a card is swiped, it
will transmit the info just like if someone was to type it on a USB
keyboard.
Other readers are based on CDC class, which is a virtual serial port.
Both CDC and keyboard (HID) are supported in Embedded Master.
Data from magnetic strip is not only for credit cards, they are also available on driver's
licenses and corporates identity cards.
14.1.2 USB Barcode Reader
Barcode readers emulate keyboards just like magnetic strip readers do.
A good application example of how Embedded Master can be
used with these reader is a warehouse stock system. A wireless
USB Barcode reader is connected to Embedded Master. When a
worker scans one of the boxes, Embedded Master captures the
number and store it on a file on an SD card. Also, it will send it
over the network to the server for processing.
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