FEZ One Wire Device Temperature Sensor Example

This code example demonstrates how to take a reading from a one wire temperature sensor connected to a GHI Electronics FEZ board.

This code is written in C# and assumes the development workstation has all required software installed.

using System;
using System.Threading;

using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;

using GHIElectronics.NETMF.Hardware;
using GHIElectronics.NETMF.FEZ;
 
public class Program
{
    public static void Main()
    {
        Cpu.Pin myPin = (Cpu.Pin)FEZ_Pin.Digital.Di4;
 
        OneWire ow = new OneWire(myPin);
        ushort temperature;
 
        while (true)
        {
            if (ow.Reset())
            {
                ow.WriteByte(0xCC);     // Skip ROM, we only have one device
                ow.WriteByte(0x44);     // Start temperature conversion
 
                while (ow.ReadByte() == 0) ;   // wait while busy
 
                ow.Reset();
                ow.WriteByte(0xCC);     // skip ROM
                ow.WriteByte(0xBE);     // Read Scratchpad
 
                temperature = ow.ReadByte();                 // LSB 
                temperature |= (ushort)(ow.ReadByte() << 8); // MSB
 
                Debug.Print("Temperature: " + temperature / 16);
                Thread.Sleep(1000);
            }
            else
            {
                Debug.Print("Device is not detected.");
            }
 
            Thread.Sleep(1000);
        }
    }
}

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