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digispark:tutorials:gps

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digispark:tutorials:gps [2014/12/12 14:28]
digistump 		digispark:tutorials:gps [2016/06/09 12:03] (current)
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 =====Assembly:​===== =====Assembly:​=====
  
 +**NOTE:** Before you start: If you have a multimeter check for shorts between the GND pin hole and the other pin holes - if you find any please send us an email at support at digistump dot com and we will replace the board.
  
 [[https://​s3.amazonaws.com/​digispark/​images/​m/​gps1.JPG|{{https://​s3.amazonaws.com/​digispark/​images/​t/​gps1.JPG}}]] [[https://​s3.amazonaws.com/​digispark/​images/​m/​gps1.JPG|{{https://​s3.amazonaws.com/​digispark/​images/​t/​gps1.JPG}}]]
Line 63: Line 63:
 NOTE: The first time you use the GPS module it may take 5 minutes or more, near a window or outside, to acquire a fix and produce data. NOTE: The first time you use the GPS module it may take 5 minutes or more, near a window or outside, to acquire a fix and produce data.
  
-The below code will type the data out like a keyboard and must be connected to a computer - but other than the DigiKeyboard stuff, it can be reused ​in non-connected projects as well. +A GPS example ​can be found in the newest Digistump IDE Release ​- 1.5.8A or higher - under File->Examples->​Digispark_Examples->​GPS 
- +NOTE: You must select the Digispark Pro (16Mhz) (64 byte buffer) for the example ​to work!
-<code arduino> +
-#include "​DigiKeyboard.h"​ +
- +
-String nmeaString;​ +
-bool gpsReady = 0; +
- +
-void setup() { +
- +
-DigiKeyboard.delay(3000); +
-  Serial.begin(9600);​ +
-  initGPS();​ +
-} +
- +
- +
-void loop() { +
-   +
-  if(updateGPS()){ +
-    DigiKeyboard.println(nmeaString);​ +
-    DigiKeyboard.println(getStatus());​ +
-    if(gpsReady){ +
-     ​DigiKeyboard.println(getTime());​ +
-     ​DigiKeyboard.println(getDate());​ +
-    } +
-  } +
-  DigiKeyboard.delay(1000);​ +
-  +
-  +
-} +
- +
-void initGPS(){ +
-   +
-  Serial.println(PSTR("​$PUBX,​40,​RMC,​1,​1,​1,​0*46"​));​ //turn on RMC msgs +
-  Serial.println(PSTR("​$PUBX,​40,​GLL,​0,​0,​0,​0*5C"​));​ //turn off the rest +
-  Serial.println(PSTR("​$PUBX,​40,​GGA,​0,​0,​0,​0*5A"​));​ +
-  Serial.println(PSTR("​$PUBX,​40,​GSA,​0,​0,​0,​0*4E"​));​ +
-  Serial.println(PSTR("​$PUBX,​40,​GSV,​0,​0,​0,​0*59"​));​ +
-  Serial.println(PSTR("​$PUBX,​40,​VTG,​0,​0,​0,​0*5E"​));​ +
-   +
-} +
- +
- +
- +
- +
-bool updateGPS() { +
-    if(Serial.find("​GPRMC,"​)){ +
-      nmeaString = Serial.readStringUntil('​$'​);​ +
-      if(getStatus() == '​A'​) +
-        gpsReady = 1; +
-      else +
-        gpsReady = 0; +
-         +
-      return true; +
-    } +
- +
-    return false; +
-     +
-} +
- +
- +
-long getTime(){ +
-  return nmeaString.substring(0,​6).toInt();​ +
-} +
- +
-char getStatus(){ +
-  return nmeaString.charAt(nmeaString.indexOf(','​)+1);​ //this has to work even if the other data isn't present +
-} +
- +
-float getLat(){ +
-  return nmeaString.substring(12,​22).toFloat();​ +
-} +
- +
-int getLatDeg(){ +
-  return nmeaString.substring(12,​14).toInt();​ +
-} +
- +
-float getLatMin(){ +
-  return nmeaString.substring(14,​22).toFloat();​ +
-} +
- +
-float getLon(){ +
-  return nmeaString.substring(25,​36).toFloat();​ +
-} +
- +
-int getLonDeg(){ +
-  return nmeaString.substring(25,​28).toInt();​ +
-} +
- +
-float getLonMin(){ +
-  return nmeaString.substring(28,​36).toFloat();​ +
-} +
- +
-float getKnots(){ +
-  return nmeaString.substring(39,​44).toFloat();​ +
-} +
- +
-long getDate(){ +
-  return nmeaString.substring(46,​52).toInt();​ +
-} +
- +
-int getDay(){ +
-  return nmeaString.substring(46,​48).toInt();​ +
-} +
- +
-int getMonth(){ +
-  return nmeaString.substring(48,​50).toInt();​ +
-} +
- +
-int getYear(){ +
-  return nmeaString.substring(50,​52).toInt();​ +
-} +
- +
-long getFullYear(){ +
-  return 2000 + nmeaString.substring(50,​52).toInt();​ +
-} +
- +
-char getNS(){ +
-  return nmeaString.charAt(23);​  +
-} +
- +
-char getEW(){ +
-  return nmeaString.charAt(37);​  +
-} +
- +
-</​code>​+
digispark/tutorials/gps.1418423312.txt.gz · Last modified: 2014/12/12 14:28 by digistump

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