??? 09/19/06 17:24 Read: times |
#124592 - Detecting Responding to: ???'s previous message |
When there is no key pressed, the inputs (rows) are high and the outputs (columns) are low. Pressing a button will pull the row low. Then I set each coulmn high in turn and see which one restores the row to a high state.
Is this backwards from the way I should be doing this? |