Refactor GPS firmware to API-only with event handling#7
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Robotmad wants to merge 2 commits into
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Major changes: * Remove the graphical app portion, the firmware now runs in the background only * Provide 3 API methods for getting the current position as a (lat, lon) tuple, ground speed in knots, and course in degrees from true north * Add a GPSEvent type and emit events every time a location fix message is received from the GPS * In both the API and the GPSEvent, when the fix is lost, the position value will be None instead of a tuple Other fixes: * Firmware version bumped to 2 * Add a character timeout to the UART configuration to improve the ability of uart.readline() to read a full line, and reduce parsing errors caused by reading partial lines * Override background_task to manage sleep for longer between UART message bursts, to reduce the impact of the blocking UART timeout on other apps
GPS Firmware API/Events
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