I have modified and existing circuit for 2x16 LCD. I removed 2 variable transistors and two resistors. Difference I could see now is back light is very bright now.
Attached is my new circuit. Does it look good? Will running it long create any issues?
LCD Pin Connection Details
1 - Grounded
2 - 5V
3 - Grounded
4 - 26th Pin of GPIO
5 - Grounded
6 - 24th Pin of GPIO
7 - NOT USED
8 - NOT USED
9 - NOT USED
10 - NOT USED
11 - GPIO 25
12 - GPIO 24
13 - GPIO 23
14 - GPIO 18
15 - 5V (This enable the backlight)
16 - Grounded
