2x16 LCD And 4x4 Keypad Interfacing With 8051 in Assembly Language | bOtskOOl
Microcontrollers are just silicon wafers until we tell them what to do, program them according to our requirement.Read More ... The connections are similar as shown over here. Now consider this, if I select the first column only, it has 4 keys, 1, 5,9,13....