User:Sbmeirow/Sandbox7

Arduino board comparison table
split up and migrated table on May 27, 2023 to these articles...
 * Arduino Uno
 * Arduino Nano

Other changes to consider:
 * MCU Battery-Backed RAM & RTC -- R7FA4M1AB = 0.5 KB (powered by ??? pin on Uno R4 boards), STM32H747XI = 4 KB (powered by VRTC pin on GIGA R1 WiFi board)
 * MCU Dbg/Pgm -- similar to ATtiny table?

Compare against:
 * https://en.wikipedia.org/wiki/ATtiny_microcontroller_comparison_chart
 * https://en.wikipedia.org/wiki/List_of_Arduino_boards_and_compatible_systems
 * https://i.stack.imgur.com/4r0iO.png
 * https://circuitdigest.com/fullimage?i=inlineimages/u4/Entry-Level-Arduino-Boards.png
 * https://core-electronics.com.au/guides/compare-arduino-boards/