• 990.014 MuIN LCD - Getting started [EN]

    Here you can see how to perform a simple check of your brand new MuIN LCD. If you encounter some problems during those operations, you can jump to Troubleshooting section at the end of this article. Let's start!

    Step 1 - Setting the jumpers

    Since we'll do a simple test with pc, using USB port, we must check some jumpers: leave open all the jumpers marked as "UART" and place a jumper on the connector marked "Logic" in direction of "USB" mark, follow the picture:

    Note
    The "UART" Jumpers are used to send/receive serial data over XBee, UART or RS485 lines. The USB have a dedicated communication line.

    The USB/EXT jumpers are used to power logic+display or XBee, we've closed the jumper like displayed in the picture in order to power up the board from USB connector. The above jumper is used to power XBee module.
    If you want to use the integrated speaker, you must sold together pads marked "SPK EN."

    Step 2 - Plug it!

    You need an USB cable with A / Mini B connectors like this: http://www.robot-italy.com/product_i...oducts_id=1479

    You need also VCom drivers, you can download them on download page.
    Note
    The driver installation will be showed on Windows XP operating system, for other OS please refer to manual.
    For MuIN LCD installation on Linux, please refer to this post in our blog
    Now you're ready to connect MuIN LCD to computer! First time you do this, a little ballon will appear:

    Note
    The MuIN LCD will power up, on the display will appear the firmware revision and if you have enabled the speaker you'll hear a beep.
    Then a window will pop-up, select "not now" and press next button:


    Now you must select the expert user option and then press next button:


    On the next window click "browse":


    Now you must select the folder in which you have extracted the file CDCinf.inf you've downloaded. Press OK. On the previous window press Next. A popup about "testing of windows logo program" may appear:


    Don't care and press Continue button, installation will begin:


    After a couple of seconds the installation will finish:


    Press END, a balloon will appear:


    Now you're ready to do some tests and setup the MuIN LCD.

    Step 3 - The GUI

    On this page you can download the GUIs. The GUIs are used to setting up display size and BaudRate
    Note
    Baudrate setting is used only when the MuIN LCD must communicate with UART, XBee or RS485, is not used with USB

    Troubleshooting


    Here you can find answers to most common problems:

    L1 led is turned on and MuIN is not recognized by pc/doesn't respond to commands

    This problem is caused by low-current power supply.

    If you're using USB power supply: try to attach board on another USB port (some front ports on desktop pc are low-current, attach cable on USB ports on the back) or try to use an external power supply (remember to change jumper position).

    If you're using an external power supply: be sure your power supply can carry at least 200mA and 7 to 12Vdc

    MuIN is recognized by pc/responds to command but I cannot see nothing on display/I see black lines

    Adjust trimmer marked as "contrast" using a small screwdriver

    Sometimes I receive strange characters on display when use USB communication

    Remove jumpers from XBee/UART/RS485

    MuIN doesn't operate with XBee module

    - Check power supply jumper for XBee (put XBee jumper in direction "EXT" if you want to power XBee module by external power supply or in direction "USB" if you want to use USB power supply to power XBee module)
    - Check your power supply
    - Check communication jumper: must be on "Xbee" position
    - XBee module and MuIN LCD must operate at same baudrate. XBee Baudrate can be changed with XCTU software. You can change MuIN LCD Baudrate using the GUIs

    MuIN doesn't operate with RS485/UART

    - MuIN LCD must have same baudrate of other devices you want to communicate with
    - Check communication jumpers