This web app can create font files for the MAX7456 OSD chip with a customized boot logo image, which can be then uploaded to a compatible flight controller using the Betaflight Configurator. Requires Python 3.

Like always, just use pip to install dependencies on your system:

sudo pip3 install -r requirements.txt

Or even better, you may consider using a virtual environment.

Fonts from the Betaflight project are not part of this repo, but are required by this app. Run update-fonts.sh to download them from Betaflight Configurator's repo.

• This fork was modified to unzip both version 1 and version 2 fonts. The app.py is hard-coded to point to version 2 fonts.

This web app supports reCAPTCHA to repell robots and keep them from spamming. Once you have created an account at the official reCAPTCHA home page and registered your site, you can provide the site key and secret key to the app to enable the reCAPTCHA widget. Copy recaptcha.cfg.sample as recaptcha.cfg and edit the copied file to include the keys for your site.

SSL is enabled by default, the required certificate (app.crt) and key (app.key) files can be created by running create-cert.sh. The --no-ssl command line option can be used to disable this.

The input image for the custom logo must satisfy these requirements:

• image has to be exactly 288px×72px
• the best to use PNG or BMP format
• background must be full green (#00ff00)
• must use white (#fff) and black (#000) colors only
• it's better to use RGB mode than RGBA (alpha is ignored anyway)
• green areas will be transparent on the OSD

usage: app.py [-h] [--no-ssl] [--no-recaptcha] [-p PORT] [-s ADDR] [-v] [-d]

optional arguments:
  -h, --help            show this help message and exit
  --no-ssl              disable SSL support (default: False)
  --no-recaptcha        disable reCAPTCHA (default: False)
  -p PORT, --port PORT  server port (default: 8720)
  -s ADDR, --host ADDR  host address (default: 0.0.0.0)
  -v                    verbosity level, can be used multiple times (default:
                        0)
  -d, --debug           enable debug mode and autoreload (default: False)

example: ./app.py --no-ssl --no-recaptcha -p 8080

Then open your web-browser to http://127.0.0.1:8080