I am a complete beginner in Arduino ( But with a passion to learn) and I have been breaking my head to solve my problem with LCD 16X2.
I double checked my connections and the code. I have a LCD 16216-9SL ( Oriole - Indian Make. http://www.orioleindia.com/lcd%20manual/16x2.pdf) and a PCF8574T (Phillips/NXP) Back pack.
I downloaded and installed the latest libraries (1.3.4) as mentioned and complied my code. But my display wont show anything. It occasionally shows gibberish data, some times blank, some times some Japanese script like characters.
I am unable to figure out what is wrong. The backlight goes on and off. But nothing on the display. Please find the bizzare LCD behaviour -
While checking the data sheet of 16216 LCD, I see the pin configurations are different. Can someone please help me