/// <summary>
/// Constructs DS-18B20 object for a given 1-wire bus and a device sequence number.
/// </summary>
/// <param name="bus">1-wire bus to whish the sensor is attached</param>
/// <param name="index">sequence index of a bus element</param>
public Ds18b20(OneWire bus, int index)
{
if (bus.AcquireEx() < 0)
{
throw new InvalidOperationException("Invalid OneWire bus.");
}
OneWireBus = bus;
ArrayList devices = GetDevices();
if (index >= devices.Count)
{
throw new IndexOutOfRangeException("Invalid device number.");
}
Address = (byte[])devices[index];
}
/// <summary>
/// Constructs DS-18B20 object for a given 1-wire bus and a device address
/// </summary>
/// <param name="bus">1-wire bus to whish the sensor is attached</param>
/// <param name="address">device address</param>
public Ds18b20(OneWire bus, byte[] address)
{
if (bus.AcquireEx() < 0)
{
throw new InvalidOperationException("Invalid OneWire bus.");
}
OneWireBus = bus;
ArrayList devices = GetDevices();
foreach (byte[] Address in devices)
{
if (Address.Compare(address))
{
this.Address = Address;
return;
}
}
throw new InvalidOperationException("Device with the specified address is not present in the bus.");
}