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Interfacing NT7605-based LCD with MSP430

I've spent the last week or two trying to get my MSP430 to communicate with an NT7605-based LCD. I found this post with a very similar problem: Debugging initialization of LCD with NT7605 driver I'...
1
vote
1answer
829 views

LCD 16x2: circuit to adjust the LCD backlight by a PWM signal

I am testing a lcd 16x2 whith msp430g2553. I am controlling the backlight by PWM signal. I am using the P2.4 as output generating a PWM signal. I have connected the anode directly to pin P2.4 of the ...
-2
votes
1answer
821 views

Calculator with MSP430 in Assembly Language

I am programming a calculator in assembly language with the MSP430g2553. I have a 4x4 membrane keypad and an 2x16 LCD. I already can display numbers in the LCD with the keypad. The issue is that the ...
0
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1answer
174 views

NHD-0216HZ-FSW-FBW-33V3C Black Boxes in Line LCD Display

I installed a NHD-0216HZ-FSW-FBW-33V3C with an MSP430g2553. I tried to initialize it for 4-bit mode in assembly language but black boxes still shown and initialization is not completed I think. My ...
1
vote
2answers
856 views

How do you initialize an LCD screen to be used with the MSP430

I have successfully wired everything together and the LCD powers up fine. Its a 16x2 display. The one problem i see is that when the LCD gets power, one of the rows is visibly darker than the other ...
1
vote
2answers
776 views

Connecting an LCD display to msp430 launchpad?

So im trying to give my lcd display (Lumex 1602) 5v. Im trying to use the test pins on my msp430 launchpad TP1 and TP3. On the LCD pin 1 is gnd and pin 2 is power. for the launchpad TP1 is power and ...
3
votes
1answer
4k views

How to fix Hitachi HD44780 16x2 LCD garbled display in 4 bit mode?

It often happens that a HD44780 16x2 LCD shows garbled characters during usage. Most help on the web advises for using snubbing techniques to prevent voltage noise such as induction spike. I've done ...
1
vote
0answers
3k views

Controlling LCD with MSP430 via I2C backpack PCF8574

I'm at my wits end with this at the moment. I need to interface my MSP430G2553 with the PCF8574 I2C expander in order to drive an LCD display. So far I've had not much luck at all. There is very ...
1
vote
1answer
3k views

Is it possible to use msp430 with keyboard + LCD?

I'm trying to do an assignment for my class which requires me to use a keyboard as input through a microcontroller to a LCD screen, nothing fancy , I just need to show that when I press characters on ...
4
votes
5answers
2k views

Debugging initialization of LCD with NT7605 driver

I've been trying to get my LCD initialized for about a week now, and am quite embarrassed to say that I've been unsuccessful thus far. I've done this in the past, and I remember it being a little ...
3
votes
3answers
1k views

Tips for multiple voltage regulators?

I've got a project I want to work on, which involves an LCD, MAX232, and MSP430. The LCD requires 5V for logic and 3V for the backlight. The MAX232 will work from 3VDC to 5.5VDC. The MSP430G2231 ...