I am trying to get the data that I am getting from my AM2315 Humidity sensor (AM2315 - Encased I2C Temperature/Humidity Sensor : ID 1293 : $29.95 : Adafruit Industries, Unique & fun DIY electronics and kits) to go to my my micro SD breakout board, then to my computer from there. It is going to the SD card great but when I put the SD card in my computer I get completely different numbers. I'm not sure if this is cause they are in different formats or what. Thank you for an help.
And here is the code I am using:
[code]
/*
SD card datalogger
This example shows how to log data from three analog sensors
to an SD card using the SD library.
The circuit:
- analog sensors on analog ins 0, 1, and 2
- SD card attached to SPI bus as follows:
** MOSI - pin 11
** MISO - pin 12
** CLK - pin 13
** CS - pin 4
created 24 Nov 2010
modified 9 Apr 2012
by Tom Igoe
This example code is in the public domain.
*/
#include <SPI.h>
#include <SD.h>
#include <Wire.h>
#include "cactus_io_AM2315.h"
AM2315 am2315;
const int chipSelect = 10;
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
Serial.print("Initializing SD card...");
// see if the card is present and can be initialized:
if (!SD.begin(chipSelect)) {
Serial.println("Card failed, or not present");
// don't do anything more:
return;
}
Serial.println("card initialized.");
Serial.begin(9600);
Serial.println("AM2315 Humidity - Temperature Sensor");
Serial.println("RH\t\tTemp (C)\tTemp (F)");
if (!am2315.begin()) {
Serial.println("Sensor not found, check wiring & pullups!");
while (1);
}
}
void loop() {
// make a string for assembling the data to log:
String dataString = "";
// read three sensors and append to the string:
for (int analogPin = 0; analogPin < 3; analogPin++) {
int sensor = analogRead(analogPin);
dataString += String(sensor);
if (analogPin < 2) {
dataString += ",";
}
}
// open the file. note that only one file can be open at a time,
// so you have to close this one before opening another.
File dataFile = SD.open("datalog.txt", FILE_WRITE);
// if the file is available, write to it:
if (dataFile) {
dataFile.println(dataString);
dataFile.close();
// print to the serial port too:
Serial.println(dataString);
}
// if the file isn't open, pop up an error:
else {
Serial.println("error opening datalog.txt");
}
am2315.readSensor();
Serial.print(am2315.getHumidity()); Serial.print(" %\t\t");
Serial.print(am2315.getTemperature_C()); Serial.print(" *C\t");
Serial.print(am2315.getTemperature_F()); Serial.println(" *F\t");
// Add a 2 second
delay(2000);
}