Hello
Is there anyone who can send me the firmware of these card ?
I need to replace the processors
Thanks
Hi milasota.
Check the ‘Troubleshooting’ section [PIC-Based Serial Enabled Character LCD Hookup Guide for the firmware we used on those. There are a few different versions depending on the exact type of display you have.
Hope this helps!](https://learn.sparkfun.com/tutorials/pic-based-serial-enabled-character-lcd-hookup-guide#troubleshooting)