I am trying to control a 16x2 LCD with s dingle wire using SN74HC595N shift register.
I came across this great library "ShiftRegLCD123"http://code.google.com/p/shiftreglcd123/wiki/Schematics#ShiftRegLCD123
I tired this schematic it just didn't work.
I thought there might be something wrong with the LCD the register or something else , so I tried the 3 wire connection and it worked just perfectly !
I also tried the 2 wires one but replaced the 1N4148 with 1N4007 (the only one I have) and it didn't work :/ !
So is there any other schemes for 2 and 1 wire connections ?