tag:blogger.com,1999:blog-3251920374329557969.post748128800568773310..comments2024-03-29T07:40:23.265+00:00Comments on RAREblog: Driving text LCDs with the teensy 3.0Romilly Cockinghttp://www.blogger.com/profile/04944907795639823332noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-3251920374329557969.post-31025392325760587542014-02-06T22:59:26.110+00:002014-02-06T22:59:26.110+00:00I have a question. My 20x4 display is a bit differ...I have a question. My 20x4 display is a bit different than the one you illustrated here, but it is a 5v system and I had it wired directly using a unidirectional configuration and had no results. I figured it was the 3.3v logic levels so I ran each line through a MC74ACT125 buffer and still no results. I noticed you actually used 1k resistors on the data channels but no level translation. How??<br /><br />I had this working great using a PIC18F4550 and might build that project back up again, using serial to it to display from the teensy, but I would rather not. lol. Gary Rubinhttps://www.blogger.com/profile/16312034647300227483noreply@blogger.com