OOD!
Price: $8.17

This board includes a 4x4 keyboard matrix and 4 standalone keyboards, and also 8 Marquee LEDs, which can be use to teach&learn the very basic knowledge of electronic and programming such as I/O controlling, interrupt, scanning,etc.

Features:

  • 4x4 Keyboard matrix, to learn scanning
  • 4 Standalone keyboard and 8 LEDs to learn I/O control

Specification