Provides multiple I/O options.

• 4x 7 Segment display
• 3 x push button
• Buzzer
• 4x LED
• 10 turn pot

• https://www.arduino.cc/reference/en/libraries/multifunctionshield/
• http://electronicexperiments.blogspot.com/2019/01/multi-function-shield.html
• https://www.techonicsltd.com/product/arduino-multifunctional-expansion-board-basic-learning-kit-microcontroller-development-board/
• https://thinkrobotics.com/products/multifunction-expansion-board-with-4-digit-led-online
• https://www.cohesivecomputing.co.uk/hackatronics/arduino-multi-function-shield/
• https://www.mpja.com/download/Hackatronics-Arduino-Multi-function-Shield.pdf

If any referenced page no longer exists, try looking for its URL on http://archive.org.