MAX7219 8x8x4 Dot Matrix
Et lille sjovt Modul til at lave Scrollende tekster på.
Jeg har her valgt en 8x8 dots modul x 4 som er sammensat fra fabrikkanten.
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Arduino Pin | MAX7219 Modul Pin | |
5V | --> | VCC |
GND | --> | GND |
11 | --> | DIN |
10 | --> | CS |
13 | --> | CLK |
GPS module #include <SoftwareSerial.h> #include <TinyGPS.h> #include <SPI.h> #include <SD.h> TinyGPS gps; SoftwareSerial ss(4, 3); File myFile; static void smartdelay(unsigned long ms); static void print_float(float val, float invalid, int len, int prec); static void print_int(unsigned long val, unsigned long invalid, int len); static void print_date(TinyGPS &gps); static void print_str(const char *str, int len); void setup() { Serial.begin(115200); ss.begin(9600); if (!SD.begin(7)) { return; } myFile = SD.open("GPS_Data.txt", FILE_WRITE); myFile.println(); myFile.print("Using TinyGPS library v. "); myFile.println(TinyGPS::library_version()); myFile.println(); myFile.println("Sats HDOP Latitude Longitude Fix Date Time Date Alt Course Speed Card Distance Course Card Chars Sentences Checksum"); myFile.println(" (deg) (deg) Age Age (m) --- from GPS ---- ---- to City ---- RX RX Fail"); myFile.println("-------------------------------------------------------------------------------------------------------------------------------------"); myFile.close(); } void loop() { float flat, flon; unsigned long age, date, time, chars = 0; unsigned short sentences = 0, failed = 0; static const double City_From_LAT = 55.477195, City_From_LON = 8.462352;//City_From_LAT = 51.508131, City_From_LON = -0.128002; London -- City_From_LAT = 55.477195, City_From_LON = 8.462352; Esbjerg Hygge Alle myFile = SD.open("GPS_Data.txt", FILE_WRITE); print_int(gps.satellites(), TinyGPS::GPS_INVALID_SATELLITES, 5); print_int(gps.hdop(), TinyGPS::GPS_INVALID_HDOP, 5); gps.f_get_position(&flat, &flon, &age); print_float(flat, TinyGPS::GPS_INVALID_F_ANGLE, 10, 6); print_float(flon, TinyGPS::GPS_INVALID_F_ANGLE, 11, 6); print_int(age, TinyGPS::GPS_INVALID_AGE, 5); print_date(gps); print_float(gps.f_altitude(), TinyGPS::GPS_INVALID_F_ALTITUDE, 7, 2); print_float(gps.f_course(), TinyGPS::GPS_INVALID_F_ANGLE, 7, 2); print_float(gps.f_speed_kmph(), TinyGPS::GPS_INVALID_F_SPEED, 6, 2); print_str(gps.f_course() == TinyGPS::GPS_INVALID_F_ANGLE ? "*** " : TinyGPS::cardinal(gps.f_course()), 6); print_int(flat == TinyGPS::GPS_INVALID_F_ANGLE ? 0xFFFFFFFF : (unsigned long)TinyGPS::distance_between(flat, flon, City_From_LAT, City_From_LON) / 1000, 0xFFFFFFFF, 9); print_float(flat == TinyGPS::GPS_INVALID_F_ANGLE ? TinyGPS::GPS_INVALID_F_ANGLE : TinyGPS::course_to(flat, flon, City_From_LAT, City_From_LON), TinyGPS::GPS_INVALID_F_ANGLE, 7, 2); print_str(flat == TinyGPS::GPS_INVALID_F_ANGLE ? "*** " : TinyGPS::cardinal(TinyGPS::course_to(flat, flon, City_From_LAT, City_From_LON)), 6); gps.stats(&chars, &sentences, &failed); print_int(chars, 0xFFFFFFFF, 6); print_int(sentences, 0xFFFFFFFF, 10); print_int(failed, 0xFFFFFFFF, 9); Serial.print('*'); Serial.println(); myFile.println(); myFile.close(); smartdelay(1000); } static void print_date(TinyGPS &gps) { int year; byte month, day, hour, minute, second, hundredths; unsigned long age; gps.crack_datetime(&year, &month, &day, &hour, &minute, &second, &hundredths, &age); if (age == TinyGPS::GPS_INVALID_AGE) myFile.print("********** ******** "); else { char sz[32]; sprintf(sz, "%02d/%02d/%02d %02d:%02d:%02d ", month, day, year, hour, minute, second); myFile.print(sz); } print_int(age, TinyGPS::GPS_INVALID_AGE, 5); smartdelay(0); } static void print_str(const char *str, int len) { int slen = strlen(str); for (int i=0; i<len; ++i) myFile.print(i<slen ? str[i] : ' '); smartdelay(0); } static void print_int(unsigned long val, unsigned long invalid, int len) { char sz[32]; if (val == invalid) strcpy(sz, "*******"); else sprintf(sz, "%ld", val); sz[len] = 0; for (int i=strlen(sz); i<len; ++i) sz[i] = ' '; if (len > 0) sz[len-1] = ' '; myFile.print(sz); smartdelay(0); }  static void print_float(float val, float invalid, int len, int prec) { if (val == invalid) { while (len-- > 1) myFile.print('*'); myFile.print(' '); } else { myFile.print(val, prec); int vi = abs((int)val); int flen = prec + (val < 0.0 ? 2 : 1); // . and - flen += vi >= 1000 ? 4 : vi >= 100 ? 3 : vi >= 10 ? 2 : 1; for (int i=flen; i<len; ++i) myFile.print(' '); } smartdelay(0); } static void smartdelay(unsigned long ms) { unsigned long start = millis(); do { while (ss.available()) gps.encode(ss.read()); } while (millis() - start < ms); }