![]() ![]() The usage of the SerLCD couldn’t really be simpler. ![]() With the HD44780 you have to worry a lot about timing and initialization, although there is an arduino library for them which works fine and abstracts a lot of the mess. I got the 5-volt version since the arduino is 5V. Their unit is pretty cheap ($17 for just the backpack, $25 with an LCD). That’s what put me off them in the past, since I see parts and like to buy a couple and have them sitting in reserve for when I want them.Īfter this last project I ended up buying a couple of the Sparkfun SerLCD modules. The problem with serial-enabled LCD’s is that you can get boring HD44780 parallel units for like a dollar from electronics surplus stores, and the serial-enabled ones are like $80. That project finished up fine, but I figured I would investigate using a Serially-enabled LCD for the next thing I did. By the time I had analog inputs, SPI, I2C, and this LCD going in 4-bit mode (using 6 lines, 7 if not cheating the Read/Write), I was out of pins. The problem in that project was I essentially ran out of digital control lines. Recently I did a little project with an Arduino board, using an LCD based on that HD44780 chipset. (There is no music associated with this post) ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |