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Messages - Saurabh_B

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OLEDs / Re: NHD-0420DZW-AY5 to replace NHD-0420DZ-FSW-FBW
« on: January 17, 2018, 08:18:15 AM »
The display should be compatible for the most part, however a few minor adjustments for the firmware might be necessary.
The instruction execution time for the Oled is a fair amount slower so you might need to add a few delays or check for the busy flag before sending consecutive instructions.

The OLED does also require a larger current input through the +5V (VDD) Input as well, can you check to see if you are limited as to how much current you would be able to supply?

OLEDs / Re: NHD-0216MW-SB3 Font width question
« on: January 15, 2018, 02:22:49 PM »
What you're describing could be caused by how the segments are mapped.

Example Code:

The initialization function, we have the command that sets the SEG Pins Hardware configuration in the middle.
Can you possibly try using 0x00 or 0x10 for the 2nd portion. This remaps the segments so that the full character appears on the same character area.

TFTs / Re: Display Font related issue
« on: December 27, 2017, 08:20:51 AM »
Hello Darshana,

Fonts and other graphics are controlled by the software and the controller that write to the display.
The onboard display controller will only show what is loaded onto the RAM.

Could you show me what you are displaying currently for the letters?

OLEDs / Re: NHD-0220DZW-AB5 help!!!
« on: December 27, 2017, 08:16:23 AM »

There isn't a way to control the brightness for these displays. They are set depending on the voltage input.

Can you let me know the modifications you did to turn the display into serial, also would it be possible to provide a picture of the back of the display?

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?

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