I have hooked my LCD up to my Arduino using the guide on: http://arduino.cc/en/Tutorial/LiquidCrystal but my backlight doesn't work. I have a 20x4 lcd 5v 8ma. [image] here is my interface list: -1 GND -2 + 5v -3 1k resistor to GND -4 pin 12 -5 pin 11 -6 pin 10 -7 pin 9 -8 pin 8 -9 pin 7 …

lcd 20x4 problem

MAS3 April 11, 2014, 8:07pm 4

Then why do you expect the backlight to be lit ?

Topic		Replies	Views
Lcd Backlight question for a newby Displays	5	1389	May 6, 2021
problem with connecting 20x4 LCD to arduino Displays	6	3113	May 6, 2021
LCD BACK LIGHT NO WORKING Frequently-Asked Questions	8	25406	May 6, 2021
LCD display not working Displays	13	4437	May 6, 2021
Problem with a 8x2 HD44780 LCD Troubleshooting	15	11456	May 6, 2021