Hardware base station for reading climate data along with a nice Processing GUI for your viewing pleasure

base_station.pde

#include <SHT1x.h>

#define dataPin 4
#define clockPin 5

SHT1x sht1x(dataPin, clockPin);

void setup() {
  Serial.begin(9600);
}

void loop() {
  double temp_f, humidity;
  
  temp_f = sht1x.readTemperatureF();
  humidity = sht1x.readHumidity();
  
  Serial.print(temp_f);
  Serial.print(":");
  Serial.println(humidity);
  
  delay(100);

}

user_interface.pde

/**
  Thermometer station - temperature and humidity display
  Joshua Sandlin <[email protected]>
  */

import processing.serial.*;

Serial climateSensor;
String rawData, tempF, humidity;

int x = 10;
PFont fontA;

void setup() {
  size(400, 130);
  background(102);

  // establish a connection to our serial port (xbee)
  // and clear out any mid-transaction cruft.
  String serialPort = Serial.list()[0];
  climateSensor = new Serial(this, serialPort, 9600);
  climateSensor.clear();
  
  rawData = climateSensor.readStringUntil(10);
  rawData = null;
  
  fontA = loadFont("FreeMono-48.vlw");
  textFont(fontA, 32);
}

void draw() {
  
  if( climateSensor.available() > 0) {
    
    rawData = climateSensor.readStringUntil(10);
    if( rawData != null) {
      background(102);
      
      // data from the station is sent in the format:
      // "temp:humidty", so we split it at ":"
      text("Temperature: ", 30, 50);
      text(rawData.split(":")[0], 275, 50);
      
      text("Humidity: ", 30, 85);
      text(rawData.split(":")[1], 275, 85);
    }
    
  }
}