49 lines
747 B
C
49 lines
747 B
C
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#pragma once
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#include <Arduino.h>
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struct GPSData {
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float latitude; // in degrees, poistive is N
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float longitude; // in degrees, positive is E
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short altitude; // in meters from sea level
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};
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class GPSSerial {
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private:
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enum Field {
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HEADER,
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TIME,
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LATITUDE,
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LAT_INDICATOR,
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LONGITUDE,
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LONG_INDICATOR,
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FIX_STATUS,
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SAT_USED,
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HDOP,
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ALTITUDE,
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ALT_UNIT,
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ALTREF,
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ALTREF_UNIT,
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DIFFAGE,
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DIFFSTATION,
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CHECKSUM,
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};
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HardwareSerial* port;
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char field_buffer[32];
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unsigned char field_len;
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Field field;
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unsigned char checksum; // rolling checksum
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bool read_field();
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void update_checksum();
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public:
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GPSData data;
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GPSSerial(HardwareSerial* hw_port) { port = hw_port; }
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~GPSSerial();
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bool is_data_ready(void);
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};
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