Matrix E-blocks2 Keypad Board BL0138

Description

The E-blocks2 keypad board allows for simple data entry using an array of switch inputs which can be added to the E-blocks2 system.

The E-blocks2 Keypad board is a useful tool as it allows you to enter numeric and textual data into the embedded system. The switches are all push to make type and read by controlling the logic level of the columns and reading back the state of the rows.

Only a single active switch on the keypad can be read at once.