wazlie
Newbie level 1
![Newbie level 1](/styles/images/ranks/alevel1.gif)
how to make limit for the thing that want to get is only two using microcontroller at89c51 with lcd and keypad?
the thing is we need to used the keypad to select the number and with the number, one can get to press the switch that connect with 8051 only 2 times. the limit for the number to get a thing is only 2. so any idea, anyone?![Oops! :oops: :oops:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
the thing is we need to used the keypad to select the number and with the number, one can get to press the switch that connect with 8051 only 2 times. the limit for the number to get a thing is only 2. so any idea, anyone?