Add hardware configuration for Serdaco MP32L device

[probonopd]

#785 (reply in thread)

@BobanSpasic it would be great if you could test the configuration in this build.

Need to replace the default minidexed.ini in the root of the microSD card with the appropriate one from inside the hardware folder.

[BobanSpasic]

Done more testing. Please correct the following lines:

SSD1306LCDRotate=1

LCDColumns=20

[github-actions]

Build for testing:
MiniDexed_2025-01-07-0d450e8
Use at your own risk.

[probonopd]

@logomancer maybe you can give this a try, too.
Need to replace the default minidexed.ini in the root of the microSD card with the appropriate one from inside the hardware folder.

[logomancer]

It's functional with the mt-32-pi hat, but if the hat is installed with the SH1106 and the corresponding buttons, the controls and display are rotated 180 degrees, and the display is blank on every other line (because it uses a 128x64 display instead of a 128x32). These can be fixed with config changes. Here are the changed lines I had:

# SSD1306 LCD
# For a 128x32 display, set LCDColumns=20; LCDRows=2
# For a 128x64 display, set LCDColumns=20; LCDRows=4
SSD1306LCDI2CAddress=0x3c
SSD1306LCDWidth=128
SSD1306LCDHeight=64
SSD1306LCDRotate=0
SSD1306LCDMirror=0

[...]

# Default is 16x2 display (e.g. HD44780)
LCDColumns=20
LCDRows=4

[...]

# GPIO Button Navigation
#  Any buttons set to 0 will be ignored
ButtonPinPrev=22
ButtonActionPrev=click
ButtonPinNext=23
ButtonActionNext=click
ButtonPinBack=27
ButtonActionBack=click  
ButtonPinSelect=17
ButtonActionSelect=click
ButtonPinHome=17
ButtonActionHome=longpress 
ButtonPinShortcut=0
# (Shortcut doesn't have an action)

[BobanSpasic]

There is a minor thing - with this configuration, the encoder remains enabled, but MP32L doesn't have one.
I mean, it isn't something of a real issue, but it is also not needed.

As for the rest - this configuration works for me.

[github-actions]

Build for testing:
MiniDexed_2025-01-08-86a3401
Use at your own risk.