Beispiel #1
0
        private const string RowPadding = "                    "; // 20 chars

        #endregion Fields

        #region Methods

        /// <summary>
        /// 20x4 LCDs wrap rows in order 0-&gt;2-&gt;1-&gt;3 due to its memory configuration. This compensates by modifiying the string to write.
        /// </summary>
        /// <param name="lcd">
        /// The lcd module.
        /// </param>
        /// <param name="text">
        /// The text to write to the LCD.
        /// </param>
        public static void Write20X4(Lcd lcd, string text)
        {
            lcd.Clear();
            lcd.Home();

            var memoryMappedText = text.Substring(0, Math.Min(text.Length, 20));
            if (text.Length > 40)
            {
                memoryMappedText += PadRight(text.Substring(40, Math.Min(text.Length - 40, 20)));
                memoryMappedText += PadRight(text.Substring(20, Math.Min(text.Length - 20, 20)));

                if (text.Length > 60)
                {
                    memoryMappedText += text.Substring(60, Math.Min(text.Length - 60, 20));
                }
            }
            else if (text.Length > 20)
            {
                memoryMappedText += RowPadding;
                memoryMappedText += PadRight(text.Substring(20, Math.Min(text.Length - 20, 20)));
            }

            lcd.Write(memoryMappedText);
        }