Meshtastic Firmware Hacks

Prerequisite

Download & install PlatformIO
git clone https://github.com/meshtastic/firmware.git
cd firmware && git submodule update --init

Customization

Custom Boot Logo

Use XMB Viewer to convert an image to XMB
The data from this goes in firmware/src/graphics/img/icon.xbm

You can use the provided icon.xbm for a rad GTA:SA fist to show up on boot.

Custom boot message

Navigate to firmware/src/graphics/Screen.cpp
Find & replace const char *title = "meshtastic.org"; with your custom message.

Custom screen color

Navigate to src/graphics/TFTDisplay.cpp
Find & replace #define TFT_MESH COLOR565(0xFF, 0x00, 0x00) with your custom color. (The one shown here is for RED mode >:))

Custom alert sound (for T-Deck & devices with a buzzer)

From the mobile app, click the 3 dots on the top right, and select Radio configuration
Under Module configuration, select External Notification
Scroll down & you will see a Ringtone option that takes RTTTL formatted tones.

As far as I know, at the time of writing this, the only way to change the Ringtone is from the App. While this is not a "firmware" related thing, I included it in this file because it was difficult to find this setting...

Compile & flash firmware

Select PlatformIO: Pick Project Environment & select your board.
Run PLatformIO: Build to compile the firmware.
Place device in DFU mode & plug in to the computer
Do PlatformIO: Upload to send the firmware to the device
Press the RESET button or reboot your device.

See here for more information building & flashing custom firmware.

1.9 KiB Raw Blame History