During the last weeks, various improvements to the software and hardware where made, in part thanks to contributions from the Hackaday community. The highlights include:
- Further drawing speed improvements: A full screen draw is now just under 500ms, partial draws can be much faster!
- @Sebastius made the PCB more robust and versatile by adding the option to run the power supply on 5V or 3.3V via a jumper, adding a test pad for VCOM and improving the ground plane connections.
- Fonts can now be rendered in any (4 bit grayscale) color and can be drawn on a background. This was essential for the terminal example.
The Terminal Example:
What you see here is a (almost) complete terminal (actually a port of the simple terminal from suckless.org), running on the ESP32! Currently, I'm using it to mirror a terminal emulator through `script -f /dev/ttyUSB0`, but I'm working on hooking up a laptop keyboard to make it fully stand-alone!