This add-on keypad features a telephone operator's standard 4 × 4 keyset, with numbers 0-9, #, *, and functions A-D. The keypad comes with 8 flying leads with square pin connectors one each end, which allows you to easily wire the keypad to standard 0.1" spaced square pin headers. Output
Pin | Connection | | 1 | ROW 2 | | 2 | ROW 3 | | 3 | COL 1 | | 4 | ROW 4 | | 5 | COL 2 | | 6 | COL 3 | | 7 | COL 4 | | 8 | ROW 1 |
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