| ??? 09/05/04 16:40 Read: times Msg Score: +1 +1 Informative |
#76922 - my example code Responding to: ???'s previous message |
I found it is sufficient, to read the matrix two times with a 20..200ms delay.
And if the two readings are identical, then accept it. Following an example of a 3 * 8 = 24 key matrix: http://www.mikrocontroller.net/attachmen...d_drvn.c51 It support also to detect two or more keys simultaneous (for more than two keys decoupling diodes are needed on every key). Peter |
