I'm trying to power on a LCD on a breadboard. For some reason, the LCD is not turning on (No backlight). Here's how I wired it and I'd like to know if I messed up on anything:
Datasheet: http://www.lcd-module.de/fileadmin/eng/pdf/doma/dip203-4e.pdf
I've checked the voltages on VDD (Pin 2) and LED Backlight (Pin 17) and they are getting 3.3V. Measuring voltage on VEE (Pin 3) gets about 2V, which I'm assuming is the voltage being dropped from the pot and internal resistor inside VEE.
I've also measured the current using an ammeter on LED B/L+ (17) and it's at 33mA. The datasheet says the maximum current on LED Backlight pin is 45mA so I think I'm safe here.
I haven't wired the data lines yet because I can't even get this LCD to power up.
The LCD was bought 2 days ago, so while not impossible, it's very unlikely this is defective.
Is there anything I've messed up in my wiring?
Datasheet: http://www.lcd-module.de/fileadmin/eng/pdf/doma/dip203-4e.pdf
I've checked the voltages on VDD (Pin 2) and LED Backlight (Pin 17) and they are getting 3.3V. Measuring voltage on VEE (Pin 3) gets about 2V, which I'm assuming is the voltage being dropped from the pot and internal resistor inside VEE.
I've also measured the current using an ammeter on LED B/L+ (17) and it's at 33mA. The datasheet says the maximum current on LED Backlight pin is 45mA so I think I'm safe here.
I haven't wired the data lines yet because I can't even get this LCD to power up.
The LCD was bought 2 days ago, so while not impossible, it's very unlikely this is defective.
Is there anything I've messed up in my wiring?