I've began development of the Xprotolab 2. There will be many changes, but the most important ones are:

• It will use an STM32G473, which is a 32-bit Cortex M4 microcontroller.
• 4 Analog Inputs, 4 MSPS
• 2 Analog Outputs
• Higher resolution, color display
• 5 buttons for the User Interface
• USB C connector

The new micro has a ton of flash and RAM, so I won't be as constrained during development. The color display will be very nice when displaying many waveforms.

The micro also has many cool DSP features and peripherals that I plan to integrate in the firmware.

Here is a picture of the first prototype: