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The Recalbox Team.

[Script] CLCD display on recalbox

  • Recalbox-Clcd

    alt text


    Small script written in Python for Recalbox project ( )
    running on Raspberry Pi 2,3, which displays all necessary info on a 16x2 CLCD display
    You must scrap your rom to make this script work correctly when playing.



    • Current Date and Time
    • IP address of eth0, wlan0
    • CPU Temperature and Speed
    • Emulation and ROM informations
    • Daemon provide to manage start/stop of the script

    Development Environment

    • Raspberry Pi 3
    • Recalbox v4.1
    • 16x2 I2C HD447800 LCD (A00)


    Raspberry Pi I2C GPIO Pinout

    1602 LCD + IIC/IC2, 16x2 HD44780A00 or HD44780A02 (A00 = Ascii + japanese fonts, A02 = Ascii + European fonts)

    Connection of the I2c to a raspberry pi 3

    alt text

    Scripts installation

    • connect in ssh to your recalbox and mount partition to rw mode
    mount -o remount, rw /
    • Copy
      to /recalbox/scripts folder with winscp for example

    • Copy
      to /etc/init.d/

    • then give execute right on all file

    chmod +x /recalbox/scripts/
    chmod +x /recalbox/scripts/
    chmod +x /recalbox/scripts/
    chmod +x /recalbox/scripts/
    chmod +x /etc/init.d/S97LCDInfoText

    Activate I2C inside recalbox

    • Edit /etc/modules.conf
    • Add at the end of the file
    • Edit the /boot/config.txt
      add at the end of line
    • reboot

    Check I2C address

    You should check your I2C address of 16x2 CLCD as this device can have different adress.
    Those are two address each other normally => 0x27 or 0x3f.

    Execute the following command (could take some time to complete)

    i2cdetect -y 1
         0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
    00:          -- -- -- -- -- -- -- -- -- -- -- -- --
    10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    20: -- -- -- -- -- -- -- 27 -- -- -- -- -- -- -- --
    30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

    edit line #22 in in /recalbox/scripts with the correct adress show by the command (in this example :0x27).

    # LCD Address
    ADDRESS = 0x27 # or 0x3f

    Important note

    To make this script work with Scummvm, they should be scrap but the path in the gamelist.xml should be a folder and not the scummvm "fake file".

    instead of 



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  • great thank you,
    could it be possible to do a wiki, please ?

  • could be possible, for the moment I still working to clean-up the code and do a more simple one.

  • Developer
    Global moderator

  • Thank will be fix in the next commut.

  • I have add an entry to the French and English wiki.

  • Any return about this script especially on stable version of recalbox ?

    Is there a way to "intercept" retroachievemet unlock ?
    Same for kodi I didn't find a way to know which file is been playing, I saw that kodi already have some kind of script that do that but it require LCDPROC which seems to not be avalaible on recalbox.

  • Developer
    Global moderator

    @choum I don't have the required hardware, so I can hardly comment on that (yet, at least).
    About kodi... the people on its forum is very responsive if you don't find another way to do it online.

  • Banned

    @choum I think you're only the second one here to have a lcd display for its recalbox ...

  • For kodi I think you can use the jsonrpc api :

  • Developer
    Global moderator

    It would be cool if the script would identify recalbox's language (store in recalbox.conf) and show the dictionary for it. There are not so many strings to translate and you can allways fallback to english it the languague isn't supported.

  • @paradadf This is now implement. Just check the different translation if some word are incorrect, (missing turkish and chinese translation)

  • Developer
    Global moderator

    @choum you are so efficient! Great job! I'm on my phone now, but I'll try to correct some translations tomorrow.

  • I have redo all the translation implementation, all texts are now in .lang text file to make translation easiest.

    The script support all recalbox language (from 4.1).
    Non European alphabet like Greek, Chinese, Russian, Arabic will use English (GB) texts (European console name)
    Japanese use English text with his own specific console name.
    Because the lcd HD44780 display them correctly ( but I think it could be possible for Japanese).
    Future unsupported language will also use English (GB) texts in not found in .lang file.

  • Developer
    Global moderator

    @choum hi! I´m not sure if you´ve missed the issues and PR I made on your repo, but wanted to give you a heads up about the installation script I wrote. Currently, it is based on the changes I made on my fork. Mainly and most important moving the scripts to a separated folder to have it better organized.

  • Hello,

    I saw them today, this is wonderfull.

  • @choum
    achat de l'afficheur sur aliexpress. (1602 16x2 HD44780 Character LCD blue + 1pcs IIC/I2C 1602 Serial Interface)
    branchement ok (rétro-éclairage)
    et configuration (copie des fichier & modifications) mais a la commande: i2cdetect -y 1
    ça ne fonctionne pas rien de détecté.
    D’où viens le pb ?
    merci de votre aide.

  • @paradadf said in [Script] CLCD display on recalbox:

    @choum hi! I´m not sure if you´ve missed the issues and PR I made on your repo, but wanted to give you a heads up about the installation script I wrote. Currently, it is based on the changes I made on my fork. Mainly and most important moving the scripts to a separated folder to have it better organized.

    message d'euure au lancement !

    sous windows avec putty:

    login as: root
    root@recalbox's password:
    # sh ./
    sh: ./ No such file or directory
    # cd /
    # sh ./
    ./ line 7: syntax error near unexpected token `newline'
    ./ line 7: `<!DOCTYPE html>'
    # chmod +x

    merci de votre aide.

  • Bonjour,

    Pour le script aucune idée, je ne l'ai pas pas encore testé ni développé.

    Pour la commande i2cdetect -y 1, elle devrait normalement fonctionner, une fois les modifications effectuées ET le raspberry redémarré.

    Si tu fais un : LS /dev/

    Tu vois un I2c-1 (ou autre I2C)

  • Developer
    Global moderator

    @la-vague I don’t speak french, but you have to copy the script preferably to /recalbox/scripts/ with, e.g. WinSCP. Connect with putty and navigate to that folder wirh cd /recalbox/scripts/, then chmod +x ./ and finally run the script with ./ Follow the instructions then...

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