FrameBuffer overflow

[mwood77]

Currently overflowing the SRAM buffer on an Arduino nano (distortion in bottom right screen). This generates an annoying artifact on the bottom right of the screen.

Cause:

• Adafruit_SSD1306 library allocates 1024byte in SRAM during runtime.
• Current code (as of 1.1.0 & 1.2.0) uses:
• ---- 825bytes @ compile SRAM (40%)
• ---- 23636bytes @ compile RAM (73%)
• This leaves 1223bytes in SRAM available at runtime, of which 1024 is allocated for the SSD1306 lib.

Considerations:

• Refactor the code's variables to be smaller.
• Swap to U8G2 library, or another small-buffer library
• Sidestep issue and propose upgrade to a different board (Pico / ESP32?)

[mwood77]

bandaid solution was to comment out some unused frame buffer calls. See PR #13

Upgrade to ESP32 architecture is still under consideration.