• EEVblog #313 – Bus Pirate LCD Debugging

    Getting a Newhaven 8×2 LCD display working with the Bus Pirate.
    And some unexpected debugging.

    Be Sociable, Share!

      About EEVblog

      Check Also

      EEVblog #820 – Mesh & Nodal Circuit Analysis Tutorial

      EEVblog #820 – Mesh & Nodal Circuit Analysis Tutorial

      Dave explains the fundamental DC circuit theorems of Mesh Analysis, Nodal Analysis, and the Superposition ...

      • Tony

        Very cool! Are you thinking of using this display with the USB power supply? Looks like it might be a great fit.

      • http://dangerousprototypes.com/2012/07/16/added-2x8-hd44780-support-on-the-bus-pirate-lcd-adapter-v3/ Ian

        Thanks for using the Bus Pirate. We made a prototype of the LCD adapter with a 2×8 connector yesterday, you can see it at the website link on this comment.

        I’ll send a prototype once the PCBs come back.

      • http://www.majenko.co.uk Majenko Technologies

        It would have been nice if that little daughter board could be plugged direct into the BP without the need for that dodgy cable.

        You can, of course, carefully lever the shroud off the header on the LCD board using a small screwdriver / slim knife and put it on the other way around, so you can use a non-reversed cable. It baffles me why they have it backwards like that.

      • Pingback: EEVblog #313 – Bus Pirate LCD Debugging / Cooking Hacks Blog()

      • http://omarfrancisco.com Omar Francisco

        As usual, nice work. Initialization seems to be one of the biggest problems when working with LCD displays. It may be of help to readers of this blog an HD44780 protocol analyzer I wrote for the Saleae Logic Analyzer. A full write up and links to download is located at http://omarfrancisco.com/hd44780-protocol-analyzer/.

        Keep up the good work!

        • http://www.eevblog.com EEVblog

          Yeah, that’s the problem. Your code and hardware is either 100% and it works, or you get nothing. Classic debugging problem!

      • http://www.atlanta-robotics.com jebadiah moulton

        Where did you get the flying lead test cable? Not the ribbon cable you discussed but the one with all the different colored flying leads. I’ve been looking for something like that at a good price.

        • http://www.eevblog.com EEVblog

          Don’t recall. Had it in my junk bin a long time.