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Hi, I'm making a project and I'm having some problems with the display.
I have a couple of temperature sensors and a GPS. The data recorded by these devices through Arduino must be shown on the display: two thermometers for the temperatures and strings to show the GPS coordenates (latitude, longitude, date, time).
When I test each device separately, the display works correctly and shows everything with no problem. But when i put all together the device goes crazy, the numbers doesn´t look right in the strings, the thermometers disappear and a red cross appears in their place and things like these. This is the code I'm using:
As I said, everything goes right when I test them separately but when I put all together it doesn't work.
Does anybody know why is this happening?
I have a couple of temperature sensors and a GPS. The data recorded by these devices through Arduino must be shown on the display: two thermometers for the temperatures and strings to show the GPS coordenates (latitude, longitude, date, time).
When I test each device separately, the display works correctly and shows everything with no problem. But when i put all together the device goes crazy, the numbers doesn´t look right in the strings, the thermometers disappear and a red cross appears in their place and things like these. This is the code I'm using:
Code:
#include <genieArduino.h>
#include <SoftwareSerial.h> //GPS library
#include <OneWire.h> //Temperature sensor's DS18B20 library
float tempC;
int tempPin = 2;
int DS18S20_Pin = 2;
OneWire ds(DS18S20_Pin);
SoftwareSerial gpsSerial(10, 11); // TX, RX (RX not used)
const int sentenceSize = 80;
char sentence[sentenceSize];
void setup()
{
genieBegin (GENIE_SERIAL, 9600);
gpsSerial.begin(9600);
}
void loop()
{
GPS();
temperature1();
temperature2();
}
float GPS()
{
static int i = 0;
if (gpsSerial.available())
{
char ch = gpsSerial.read();
if (ch != '\n' && i < sentenceSize)
{
sentence[i] = ch;
i++;
}
else
{
sentence[i] = '\0';
i = 0;
displayGPS();
}
}
}
float temperature1()
{
tempC = analogRead(tempPin);
tempC = (5.0 * tempC * 100.0)/1024.0;
genieWriteObject(GENIE_OBJ_LED_DIGITS, 0x00, tempC);
genieWriteObject(GENIE_OBJ_THERMOMETER, 0x00, tempC);
delay(1000);
}
float temperature2()
{
float temperature = getTemp();
genieWriteObject(GENIE_OBJ_LED_DIGITS, 0x01, temperature);
genieWriteObject(GENIE_OBJ_THERMOMETER, 0x00, temperature);
delay(1000);
}
float getTemp()
{
byte data[12];
byte addr[8];
ds.reset();
ds.select(addr);
ds.write(0x44,1);
byte present = ds.reset();
ds.select(addr);
ds.write(0xBE);
for (int i = 0; i < 9; i++) {
data[i] = ds.read();
}
ds.reset_search();
byte MSB = data[1];
byte LSB = data[0];
float tempRead = ((MSB << 8) | LSB); //using two's compliment
float TemperatureSum = tempRead / 16;
return TemperatureSum;
}
void displayGPS()
{
char field[20];
getField(field, 0);
if (strcmp(field, "$GPRMC") == 0)
{
getField(field, 9); // Date
genieWriteStr(0,field);
getField(field, 1); // Time
genieWriteStr(1,field);
getField(field, 3); // Latitude
genieWriteStr(2,field);
getField(field, 4); // N/S
genieWriteStr(3,field);
getField(field, 5); // Longitude
genieWriteStr(4,field);
getField(field, 6); // E/W
genieWriteStr(5,field);
}
}
void getField(char* buffer, int index)
{
int sentencePos = 0;
int fieldPos = 0;
int commaCount = 0;
while (sentencePos < sentenceSize)
{
if (sentence[sentencePos] == ',')
{
commaCount ++;
sentencePos ++;
}
if (commaCount == index)
{
buffer[fieldPos] = sentence[sentencePos];
fieldPos ++;
}
sentencePos ++;
}
buffer[fieldPos] = '\0';
}
Does anybody know why is this happening?
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