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The Display Section

The Master Development System features an OLED screen that displays

the navigation information from the receiver module. This allows the

development board to act as a stand-alone evaluation system without the

need for any additional software.

The display is driven by an on-board microcontroller located under

the display. Data from the receiver module is connected directly to this

microcontroller. The microcontroller receives data at the receiver’s default

9,600bps.

The display and microcontroller pull about 100mA when fully powered, so

a power switch is supplied to deactivate the display area when not in use,

saving battery life. To protect the display and extend its life, be sure to turn

the display section off before turning off the main power to the board.

Figure 7: The Development Board Display Section

communicate with the microcontroller.

Master Development Software

The development system is supplied with Windows-based software that

communicates with the development board through the USB module. This

software displays the information from the receiver module in the different

NMEA formats and the satellite information, signal strength, and positions

are displayed graphically. If the PC is connected to the internet, the

software plots the current location on Google Maps. Full details are in the

software’s User’s Guide.

Figure 8: Master Development Software