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MIKROE GPS click is a compact solution for adding GPS functionality to your device. It carries the u-blox LEA-6S high-performance position engine. The click is designed to run on a 3.3V power supply and communicates with the target MCU through UART or I2C interface.
Data can also be acquired through a PC application using the USB connection.
GPS click can simultaneously track up to 16 satellites while searching for new ones. The LEA-6S module’s TTFF (time to first fix) is less than one second — this is the measure of time necessary for a GPS receiver to get satellite signals and navigation data, and based on this information, calculate a position (a fix).
The click uses 121mW in continuous mode, and only 36mW in power save mode. Once a position is acquired, satellites are passed on to a power-optimized dedicated tracking engine.
Different power modes (Maximum performance, Eco, Power Save) allow you to control the acquisition and tracking engines in order to balance between performance and power consumption. Detailed information about the different power modes and their configuration are available in the data sheet.
"During a Cold start, a receiver in Maximum Performance Mode continuously deploys the acquisition engine to search for all satellites. Once the receiver has a position fix (or if pre-positioning information is available), the acquisition engine continues to be used to search for all visible satellites that are not being tracked."
During a Cold start, a receiver in Eco Mode works exactly as in Maximum Performance Mode. Once a position can be calculated and a sufficient number of satellites are being tracked, the acquisition engine is powered off resulting in significant power savings. The tracking engine continuously tracks acquired satellites and acquires other available or emerging satellites. Note that even if the acquisition engine is powered off, satellites continue to be acquired.
Power Save Mode (PSM) allows a reduction in system power consumption by selectively switching parts of the receiver on and off. Power Save mode is not available with LEA-6R.
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