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This board is a GPRS Class B meaning it could only do one service (GPS/GPRS) at a time
while character LCDs are great for simple text layouts
to add new wireless capabilities
562A Blue  
Internal patch antenna which works quite well when used outdoors + u
Signal Generator AD9833 Module 0-12.5MHz - Square/Tri/Sine mh-et live This board is a GPRSThe AD9833 is a programmable waveform generator capable of creating sine, triangular, or square wave outputs in a frequency range of 0 to 12. 5 MHz. It has two 28 bit frequency registers and two 12 bit phase registers whose values can be used to calculate the frequency and phase of an output waveform. This chip is perfectly suited for use with the PIC 18F4520, as it uses SPI communication for its setup and control. A connection diagram for the AD9833
