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Messages - Saurabh_B

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OLEDs / Re: Example MikroC code for NHD-0216AW-IB3 I2C
« on: December 19, 2017, 05:23:30 PM »
Hello Chris,

I'm sorry we do not have any example codes in MicroC or xc8.
Many of the i2c examples do use the Wire.h library, however we do have an example where we are bit banging the data to make it easier to follow.

Would you be able to email for this, we would be able to provide this to you.

TFTs / Re: Touchscreen Defect on NHD-7.0CTP-CAPE-N
« on: December 13, 2017, 04:34:07 PM »

I'm sorry to hear you're having an issue with this.
Would it be possible to contact us via. Email @

Character LCDs / Re: NHD-0216K1Z-NSW-BBW6L contrast problem
« on: December 12, 2017, 01:16:12 PM »
Can you give me more information about where the display is used?

I can see what you mean by the browning on the display, this leads me to believe that something is causing extreme heat build up on or near the display.
The low contrast stripes lead me to believe this might be a connection issue with the Zebra strips and the PCB.

Do you know if there is any dust entering the display or any liquids used near by? Another issue could be that the com/seg traces could be getting shorted and destroyed.

Character LCDs / Re: NHD-0216K1Z-NSW-BBW6L contrast problem
« on: December 12, 2017, 08:04:33 AM »
Would it be possible to send a picture of what you are seeing.

Also what temperature is the display used in, and what is the voltage on the display?

TFTs / Re: Help with NHD-5.0-800480TF-ATXL#-CTP
« on: December 05, 2017, 04:40:12 PM »
This would depend on how you are planing on communicating with the display.

Most CTPs have have built in Controllers have multiple drivers available; at times these are even provided by the manufacturer.
If you are going to be using an external controller, this can be quite a bit different. The external controller (SSD1963, EVE, ect...) should have some stock drivers that can be found online.

Character LCDs / Re: NHD-C0220Biz-FS(RGB)-FBW-3VM initialization problem
« on: December 05, 2017, 08:15:02 AM »
Are you sending a delay between the commands or allowing the commands that were sent to execute?

Graphic LCDs / Re: Can't get NHD-12232KZ to work with STM32
« on: December 05, 2017, 08:13:24 AM »
Would it be possible to show a schematic of how you have the display connected?
Other than the shift register you also have certain control signals that need to be toggled to latch the data.

TFTs / Re: Help with NHD-5.0-800480TF-ATXL#-CTP
« on: December 05, 2017, 08:11:46 AM »

The driver is not the same thing as a TFT controller.

While you will be writing to the driver to show anything on the display, it does not have a built in RAM and it doesn't refresh the screen either.
These would be handled by the controller.
Certain Microcontrollers do have a built in TFT controller which are able to handle TFTs without an issue. These would include PIC24s, TI Sitara and so on.

For smaller less powerful controllers you would need to use a controller such as the SSD1963 or the FT81X.
For this you would have the following:

Processor ---(SPI/ 16/8-Bit Parallel)--->Controller---24RGB--->Driver (OTA7001) --->Display

For a processor with a built in controller you would have:

Processor ---24RGB---> OTA7001 --->Display


I have used this display and the pinouts do confuse a few people.
However i can confirm that when you are looking at the front of the display the pin on the far right is the Reset pin.

The schematic on EasyEDA might be looking at the display from the back, would it be possible to link that to me?

TFTs / Re: working with nhd-7.0-800480ef-asxv-t with buildroot framebuffer
« on: November 16, 2017, 08:15:38 AM »
Can you give us more information as to what issues you are having?

OLEDs / Re: NHD-2.8-25664UCB2 display - Linux device driver
« on: November 08, 2017, 08:03:56 AM »

Unfortunately we do not have any Linux drivers for our monochrome displays.

However there are plenty of people who have made drivers for this and other displays online:
The first one I found was FBTFT:
Another would be the Luma:

TFTs / Re: FT5336 problem with sensitivity and gesture
« on: November 01, 2017, 04:56:10 PM »
Sorry for the misunderstanding.

The firmware on the CTP is often programmed by the display manufacturer.
The different versions on the firmware could be perfectly normal, however you would have to check their application notes to see what might have changed.

More than likely the standard values of the registers will be different. You would need to adjust the threshold & sensitivity of the touch panel.

TFTs / Re: FT5336 problem with sensitivity and gesture
« on: November 01, 2017, 11:16:17 AM »
This might be a firmware related issue, i would recommend contacting FTDI for more support. they've worked with more manufacturers than we have and they might have a fix for it.

TFTs / Re: NHD-2.4-240320CF-CSXN#-F Brightness Adjustment
« on: November 01, 2017, 11:13:47 AM »

For our LCDs you are directly connected to the LEDs, the power is not controlled by the ST7789s.

I would recommend using an external current limiting circuit into the anode for the display.

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