This is not really an issue, just a successful test result! I'm including 2 links for each product, in case of link rot.
I've repurposed an EspUSB from https://atcnetz.de for use with EspVGAX, by soldering directly onto the module GPIOs, and programmed it using Arduino.app on a Mac. I installed the library using Tools > Manage Libraries..., and made some minor modifications to ~/Documents/Arduino/libraries/ESPVGAX/ESPVGAX.cpp and ESPVGAX.h to configure the GPIO pins, timer and colour settings.
First I tested the EspVGAX with this 7" screen, and it worked perfectly (once I figured out the timer and colour settings).
Screen link 1Screen link 2
Then I used a T-shaped VGA to HDMI adaptor to connect to the same screen, and that also works.
Adaptor link 1Adaptor link 2
Then I used the EspVGAX with the VGA to HDMI adaptor connected to an Elgato CamLink 4K HDMI capture device, viewing with OBS on a Mac.
Camlink link 1Camlink link 2
Now I plan to develop the software side further, so that the ESP shares its own access point, and lets me paste a full page of text, e.g. the lyrics to a verse of a song in church, or a conference presentation slide. I'm also interested in trying to pre-render the slide as a 1BITIMAGE in JavaScript, to easily allow Unicode text.
This is not really an issue, just a successful test result! I'm including 2 links for each product, in case of link rot.
I've repurposed an EspUSB from https://atcnetz.de for use with EspVGAX, by soldering directly onto the module GPIOs, and programmed it using Arduino.app on a Mac. I installed the library using Tools > Manage Libraries..., and made some minor modifications to ~/Documents/Arduino/libraries/ESPVGAX/ESPVGAX.cpp and ESPVGAX.h to configure the GPIO pins, timer and colour settings.
First I tested the EspVGAX with this 7" screen, and it worked perfectly (once I figured out the timer and colour settings). Screen link 1 Screen link 2
Then I used a T-shaped VGA to HDMI adaptor to connect to the same screen, and that also works. Adaptor link 1 Adaptor link 2
Then I used the EspVGAX with the VGA to HDMI adaptor connected to an Elgato CamLink 4K HDMI capture device, viewing with OBS on a Mac. Camlink link 1 Camlink link 2
Now I plan to develop the software side further, so that the ESP shares its own access point, and lets me paste a full page of text, e.g. the lyrics to a verse of a song in church, or a conference presentation slide. I'm also interested in trying to pre-render the slide as a 1BITIMAGE in JavaScript, to easily allow Unicode text.