/// <summary>
/// Calculates the "on" and "off" values of a channel from milliseconds (and optional delay),
/// then writes them together, and updates it in <see cref="Channels"/>.
/// </summary>
/// <param name="index">Zero based channel number (0-15) or 16 for the "all call" channel.</param>
/// <param name="length">
/// Pulse length in milliseconds. Cannot be greater than one clock interval (1000 / frequency).
/// </param>
/// <param name="delay">Optional delay in milliseconds. Cannot be greater than one clock interval (1000 / frequency).</param>
/// <returns>
/// Updated channel value or null when all channels were updated.
/// </returns>
public NxpPca9685Channel WriteChannelMilliseconds(int index, float length, float delay = 0)
{
// Read current frequency
var frequency = ReadFrequency();
// Call overloaded method
return(WriteChannel(index, NxpPca9685ChannelValue.FromMilliseconds(length, frequency, delay)));
}
