Hi
I bought 3 of these "LCM1602 IIC" things with the hope I can use the 3 of them in one arduino.
It was a difficult task to get them work until I got to http://arduino-info.wikispaces.com/LCD-Blue-I2C.
The bad news was they ALL have address 0x20 , so I see the same info in the 3 20x4 LCD Displays ( 2004).
Is there a way to change the address to 2 of these 3 circuits?.
thnx