Description: This is keypad. It is designed to data entries for embedded applications. It supports 16 keys by 4 rows and 4 columns. The MCU drives this board by key scanning software and the KEY4X4 can directly connect to ere's embedded processing board with TTL logic.
Features:
- 16 keys (4 x 4 matrix key)
- Connect to MCU port directly
- TTL logic
Dimensions: 81.3x81.3mm
Documents:
schematic
Examples:
with EMBMEGA32 by Bob Gardner
