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Messages - Saurabh_B

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This display does have a temperature compensation circuit built in.
This circuit is tied to both the VDD, so modifying the input voltage will affect the contrast. The VLCD is VDD-V0, the V0 is supplied through the temperature compensation circuit.
At 25C this should produce approx. 0.6 V.

When used normally what voltage do you see across the VDD and VSS pins?

Graphic LCDs / Re: NHD-C160100DiZ-FSW-FBW - random pixel after init
« on: February 11, 2016, 08:19:03 AM »
This is not normal,

Have you tried to clear the display?

Character LCDs / Re: NHD-C0216CZ-FSW-FBW-3V3
« on: February 11, 2016, 08:07:54 AM »
Solved by Email.

This is an SPI display, I2C commands will not work.

Character LCDs / Re: NHD-0108CZ-FSW-GBW-33V3 contrast voltage
« on: February 11, 2016, 08:05:02 AM »

You should not need to use a negative voltage input.
You would tie one end of the Temp comp circuit to the +3.3V, and the other end to 0V.

The V0 will be the same pin as VL.

TFTs / Re: NHD-1.8-128160EF-CSXN#-F Programming
« on: February 09, 2016, 09:54:50 AM »

I will look over your code for any mistakes.
All displays are tested before they leave our Facility, chances that it is DOA is fairly low.

You can provide 3.3V to both the VDDIO and VDD pins.

You can use the optimal settings for the VCOM and Power_Control found in our example code here:

Is it possible to also share your wiring diagram / Schematic for your connections?

Graphic LCDs / Re: NHD-C160100DiZ-FSW-FBW - random pixel after init
« on: February 08, 2016, 09:11:09 AM »
Would you be able to post a picture of what you are seeing?

Graphic LCDs / Re: SPI connection to NHD-C12832A1Z-FSR-FBW-3V3
« on: January 29, 2016, 09:29:52 AM »
Hi Javier,

The schematic seems fine.
This display will require you to activate the booster circuit prior to operation. You can find an example initialization example on page 8 of the display datasheet.
Display Datasheet:

We also have an example program available for this display in our App Notes page.
Example Program Code:

Let us know if you have more questions.

OLEDs / Re: NHD-2.7-12864UCY3 brightness/contrast adjusting
« on: January 28, 2016, 09:51:31 AM »
Would it be possible to copy your code here?

It might help to see where the issue might be. Also if possible can you also upload your wiring diagram?

OLEDs / Re: Control differences between LCD and OLED?
« on: January 27, 2016, 03:40:27 PM »
Hi Jan,

There are a few differences between these displays which would require a modification to the code used to drive them.

These displays do require up to 600s for commands to execute, vs the 37s required by the ST7066U Controller.
The initialization sequence is also different when using a 4-bit interface.

Would you be able to post your code to see if there are any changes that might need to be made for these displays?

TFTs / Re: 2.4" LCD module viewing angle
« on: January 25, 2016, 11:21:09 AM »

The 2.4" TFT has an optimal 65 Viewing Angle in all directions. The 12 o'clock grayscale inversion shouldn't be an issue until you go past that.

Unfortunately we do not have any other displays that will match your height limit. Our other TFTs are much larger.

Graphic LCDs / MOVED: 2.4" LCD module viewing angle
« on: January 25, 2016, 08:19:32 AM »

Would it be possible to share the segments of code that write the pixels and clear the display.

The clear and fill could possibly be sped up by speeding up how fast you write to the display.

The display has a 400 ns Serial clock period, and theoretically you could fill the whole display in about 3ms.
If you are calling for delays within the write command this could greatly reduce the time it takes clear or fill the screen.

Character LCDs / Re: Small Serial Display
« on: January 20, 2016, 09:04:03 AM »

Unfortunately we do not have any displays with a UART interface.
We do have Serial Displays that use a RS232 Interface, but unfortunately the smallest display has 2 lines and 16 characters.

For your size requirement i would recommend taking a look at our new OLED Glass.

This is a 2x16 OLED display that has an outside diameter of 41.4 x 19.9 mm.

It also has a double height feature that will allow you to use it as a 1x16 display.

This display has the following interface options.
- 8/4 Bit Parallel (6800 or 8080)
- IC


There is a command to turn all points on.

Using command #10, 0xA5 will turn all points of the display ON.
You can reverse this by using 0xA4 (Normal display).

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