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Messages - Saurabh_B

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Hello Joel,

1. Yes the display will work at 100khz
2. The supply current is dependent on what the display is showing and how far you are using the voltage booster, it can use up to 1 mA of current when fully powered.
3. This display does require 2 capacitors. can you tell me if you have both connected the way they are shown on page 4 of the datasheet?
4. You can find example code for both of the displays here:

Character LCDs / Re: NHD-C0216CiZ-FN-FBW-3V No ACK
« on: August 15, 2017, 08:26:40 AM »
Currently working on this via email with customer.

OLEDs / Re: spontaneous reverse mode with NHD-0420CW
« on: August 15, 2017, 08:25:30 AM »
The options that would allow you to remap the output would include the Entry Mode set as i mentioned in my previous post, along with the Set SEG Pins Hardware Configuration command on the OLED Command Set Table (RE = 1, SD = 1)

Attached is the layout for the COM and SEG lines on our OLED.
The Segment Remap command is better explained on Pages 33 & 34 of the controller datasheet (

OLEDs / Re: spontaneous reverse mode with NHD-0420CW
« on: August 14, 2017, 09:57:30 AM »

Would it be possible to add another set of commands to your initialization?
There are a few ways this display allows you to switch the text so that you can get reversed text or even upside down.

This is often controlled by the Entry Mode Set (extended [RE = 1]).

If the display is reversed (Characters coming from right to left, i would recommend possibly reversing the Segments (BDS = 0)

You can find more information about this on the controller datasheet pages 26, 33 & 35.
Datasheet Link:

TFTs / Re: NHD-10.1-1024600AF-LSXV-CTP #SUPPORT
« on: August 03, 2017, 09:02:16 AM »

This display does not come with a built in Controller.
Can you tell me what MPU you are using to write to the display? Also does your MPU support a LVDS controller?


Glad to see you have the display working, and thanks for uploading your code.


Looking at your trace, it looks like you're clocking in the SDA on the falling edge.

When you are sending the Address, it looks like you are sending a 0xF0 instead of the 78. Would you be able to try 0x3C for your address?

Character LCDs / Re: NHD-0216K1Z
« on: July 21, 2017, 02:09:25 PM »
That's great to hear, were you able to figure out the command that helps you get to the second line?

Instead of being a new line, this is actually the Set DDRAM address.
You can find a datasheet for one of our displays here:

On page 6 of the datasheet, we have the master table of instructions. On this we are using the Set DDRAM Address command (4th command from the bottom).
Using this you can set the cursor to any position of the display, the addresses of the digits can be found on the bottom of page 5.

Character LCDs / Re: NHD-0216K1Z
« on: July 21, 2017, 08:25:07 AM »
Can you tell me what letter you are seeing on your display?
Also How long are the delays in your code?

OLEDs / Re: Too much current in sleep mode
« on: July 20, 2017, 04:58:04 PM »

Unfortunately the datasheet needs to be updated to account for the DC/DC converter.
This does not shut down when the display enters sleep mode so the voltage is constantly being stepped up.

OLEDs / Re: Too much current in sleep mode
« on: July 17, 2017, 08:24:41 AM »

The current is being drawing by the DC/DC convertor.
It often draws more current when its not being powered.

Character LCDs / Re: Problems with a NHD‐0420H1Z‐FL‐GBW‐3V3
« on: July 17, 2017, 08:17:45 AM »

Can you tell me what the voltage you have going to VDD and V0 are for this display?

Would it be possible to get a picture of your display and the code you are using?

I would like to see if we can recreate the same problem.

Graphic LCDs / Re: 1.8V IO on NHD-2.4-240320CF-CTXI-F
« on: June 28, 2017, 11:30:55 AM »
While the controller for the display (ST7789S) Can work with a 1.8V system, the display will need 3.3V.
Because of this you CAN  use 1.8V on the IOVDD and 1.8V Logic with the data lines (DB0-15, /CS, D/C, /WR, /RD, /RES, IM0)
However you would need to apply 3.3V to the VDD for the LCD circuit. Is it possible for you to supply the +3.3V for the LCD alone?

The logic voltage should be related to the IOVDD, i will make this correction on future spec upgrades.

TFTs / Re: Graphic software for NHD-4.3CTP-SHIELD-V
« on: June 26, 2017, 08:39:38 AM »
Hello George,

I would recommend using the FTDI Screen Editor Software, this can be found here:

FTDI also includes a user guide to help you get started as well.

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