At the beginning, I have started the project with i2c Lcd and find out that i2c connect to Lcd 16x02 or 20x04 through IC PCF8574 has a problem in simulate.
Another thing I have test the same circuit in Proteus and it work as the picture I have include below.
In further, I take the circuit in a real world and it work fine.
The Conclusion is that I think it have a problem with this driver in SimulIDE (1.0.0 and 0.4.15)
- File SimulIDE, Proteus and the same hex for all
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