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Messages - Saurabh_B

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OLEDs / Re: Best newhaven display?
« on: January 28, 2019, 08:58:15 AM »
This would depend on the type of information you would like to show.

You have plenty of options for under $40. However the driving factor should be the information you need to show and what it will be used for.

Hello Charlie,

Sorry for the delay, The heater should be activated whenever the display starts to show any signs of lag from the cold weather.
This will typically start to occur ~-10C. However many people use a thermistor circuit to turn the heater on when the temperature drops.

I would not recommend running the heater when the temperature is room temperature or higher. This can cause the glass of the LCD to heat up past safe levels.

The heater for this display is just a clear ITO sheet behind the glass. there is noway for the heater to compensate for variation in temperature.

TFTs / Re: Windows 10 IoT Core
« on: October 10, 2018, 03:37:47 PM »
The capacitive touch panel displays also provide a better resolution.
Could you also provide a video of where the displays cut off?

Character LCDs / Re: Inverse video on NHD‐C0220BiZ‐FSW‐FBW‐3V3M
« on: October 10, 2018, 03:26:22 PM »
No, Unfortunately this display does not allow you to flip individual characters.

TFTs / Re: NHDev board and NHD-1.8-128160EF-CTXI#-FT
« on: June 14, 2018, 09:13:53 AM »
Can you tell me when you purchased the NHDev Development board?

It seems that you have an older version of the software. the NHD-1.2-128160TF was an older model we used to sell and has been replaced by the NHD-1.8-128160EF series.

Hello Bill,

Unfortunately because these are Passive Matrix OLEDs the brightness of the pixels can vary based on how many pixels are on in a row.
The brightness will be higher if you only have a few pixels lit, as opposed to having the whole row on.

OLEDs / Re: How to reset NHD-0216SZW-BY5?
« on: April 11, 2018, 08:08:16 AM »
The first thing you would have to do is to add a short delay when the power is applied.
Then before you start writing I would recommend sending the return home command.

There is also a clear display command that would be able to "reset" the screen to a blank state and move your cursor to the home position as well.

I would recommend adding delays to the end of your write functions. The max execution times are listed in the instruction table.
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OLEDs / Re: Issue about drawing on NHD-0420CW-AY320 in i2c
« on: March 05, 2018, 09:23:51 AM »
Can you tell me if you are getting an ACK from the display?

Graphic LCDs / Re: NHD-C12864WO-B1TFH#-M Contrast issue
« on: March 05, 2018, 08:02:47 AM »

The VLCD is generated by the booster circuit on the display and is controlled via software (Set Electronic Volume Command)
This voltage doesn't need to be applied, and you should see 9~11 V on pin V0 if your settings are correct and the internal booster is activated.

OLEDs / Re: NHD-2.23-12832UCB3-40956 display & SPI mode???
« on: February 08, 2018, 08:20:31 AM »

This display uses 4-Wire SPI. There is more information about the SPI communication on page 12 of the display datasheet. (

The Clock is rising Edge and the polarity of the clock does not matter. So this can work in either mode 0 or mode 3

« on: February 01, 2018, 02:02:02 PM »

Sorry i gave you the wrong github link, the one that i posted was for our Color OLEDs.
The one that this display along with our 2.8" and 2.7" OLED displays use is here:

The font table should still work for a 5x8 character array, however you need to resize the window.

To write the character you would need to give the start x and y addresses. Which would be C & D in your previous post.

« on: January 31, 2018, 09:34:54 AM »
The full code was from an older example which had plans to be extended.
However we were never able to add the Font Table to the code.

Many of the links you have through github include font tables.
Because this is a graphics display the controller itself does not have built in fonts. These need to be provided.

OLEDs / Re: Antialiasing on NHD-2.23-12832UCW3
« on: January 30, 2018, 03:48:09 PM »
Unfortunately it is not.
These had to be photoshopped to make the anti-aliasing effect disappear.

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