Pin names are not Arduino pin numbers, rather actual AVR pin names (i.e. B,5 is PB5 pin). You may need to lookup in the board pinout/schematics. Also timer outputs are actual OCnX lines, i.e. 2,B is ...

[Kaushlesh Chandel] prototyped a few projects on his Arduino that use an HD44780 Character LCD. Wanting to keep these projects in one piece, but not sacrifice his Arduino board, so he etched his ow… ...

Running the LCD in 4-bit mode it can be hooked up with 6 wires. Using a shift register allows it to be used with only 3 ports from the Arduino. After I designed the circuit in Eagle I etched a proto ...