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The revA version of the NHD-4.3-480272EF-ASXN#-T TFT now uses a Sitronix ST7282T2 controller that replaced the  Himax HX8257-A controller on the original vesion of the 4.3" TFTs. 

Please see the Engineering change notice on our website that was sent out to customers purchasing this display: http://www.newhavendisplay.com/appnotes/datasheets/LCDs/ST7282T2.pdf

The image below shows the RGB timing characteristics for this display. 

Please see the current datasheet for more details:http://www.newhavendisplay.com/specs/NHD-4.3-480272EF-ASXN-T.pdf

Best Regards,
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Graphic LCDs / Re: Series LED for backlighting
« Last post by Ted_M on Today at 03:12:04 PM »
Please take a look at these Graphic display modules with the same 128x64 resolution: https://www.newhavendisplay.com/128-x-64-c-21_96.html
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Character LCDs / Re: Cheap LCD character or bitmap display suggestions?
« Last post by Ted_M on Today at 02:40:39 PM »
Take a look at our Color OLED Arduino Shield: https://www.newhavendisplay.com/nhd169aushield-p-9482.html


Best Regards,
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Graphic LCDs / Re: Series LED for backlighting
« Last post by stratifi on Today at 04:55:59 AM »
Even we have worked on NHD-C12864WC-FSW-FBW-3V3 for a bit to create a new design. However, I'd suggest buying a better one for custom design if cost is not a problem. I am in the process of buying one, but confused between many, can you suggest me some best ones?


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Graphic LCDs / Re: NHD-C12864A1Z-FS(RGB)-FWB-HT1
« Last post by Alee_S on April 24, 2019, 10:33:41 AM »
This topic is currently being supported via e-mail.
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TFTs / Display NHD-4.3-480272EF-ASXN#-T and NHD-4.3-480272EF-ASXN#-T revA
« Last post by rvalor on April 24, 2019, 06:33:38 AM »
Hello,

We manufacture a device based on a RPi 3 Model B and we use the display NHD-4.3-480272EF-ASXN#-T.  Recently we have updated kernel to version 4.18.20-v7+ and in some devices we are experiencing display problems... After some investigation we saw that our devices were using 2 different revisions of the display:

NHD-4.3-480272EF-ASXN#-T and NHD-4.3-480272EF-ASXN#-T revA

Both of them purchased to Mouser with the same product reference in their catalog.

The current configuration in the file /boot/config.txt regarding HDMI is:

hdmi_ignore_edid=0xa5000080
hdmi_group=2
hdmi_mode= 87

hdmi timings is:

hdmi_timings=
<h_active_pixels>   480
<h_sync_polarity>   0
<h_front_porch>      1
<h_sync_pulse>      41
<h_back_porch>      2
<v_active_lines>   272   
<v_sync_polarity>   0
<v_front_porch>      2
<v_sync_pulse>      10
<v_back_porch>      2
<v_sync_offset_a>   0
<v_sync_offset_b>   0
<pixel_rep>         0
<frame_rate>      60
<interlaced>      0
<pixel_freq>      9009000
<aspect_ratio>      3

and regarding colors, we have:

framebuffer_depth=32
framebuffer_ignore_alpha=1

we also have (but I am not sure if related...)
enable_uart=1
dtoverlay=pi3-disable-bt
dtoverlay=pi3-miniuart-bt

Please, have you any idea to overcome this problem??




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Graphic LCDs / NHD-C12864A1Z-FS(RGB)-FWB-HT1
« Last post by mrsinger61 on April 23, 2019, 02:28:47 PM »
Can you provide the proper init commands for this LCD.  I've used other board with the same controller, but I can't seem to get anything to display on here even using the ALL POINTS ON command.

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Graphic LCDs / Re: Can't figure this thing out (NHD-C12832A1Z-NSW-BBW-3V3)
« Last post by Alee_S on April 23, 2019, 09:53:08 AM »
Hi Duwaar,

Yes, the max current output from the regulator should be sufficient, as this display requires a max of 1mA to operate.
The backlights shouldn't be powered with the 5V pin either, as its rated for 3.3V operation only.

Since you are still seeing low voltages across Vout and V1-V5, this indicates the voltage-booster circuit isn't properly activating.
Can you verify that you have changed the pin locations from your setup on the Arduino to match with the code I've provided? 
Code: [Select]
/****************************************************
*               Pinout on Arduino Uno               *
*****************************************************/

#define RES 8   //Reset signal
#define CS  9   //Chip select signal
#define RS 10   //Register select signal
#define SC 11   //Serial clock signal
#define SI 12   //Serial data signal

Can you also clarify if you are using electrolytic capacitors, and provide an image of your setup if so? Or are you utilizing non-polarized capacitors?

Perhaps you may also be interested our NHD-PCB12832A1Z; a PCB specifically designed with the necessary capacitors and a current-limiting resistor on-board for this display. This would be an ideal part to use simultaneously for optimal prototyping.
PCB Overview: https://www.newhavendisplay.com/nhdpcb12832a1z-p-3569.html
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OLEDs / Re: Double Height Font NHD-0216CW
« Last post by Samuel22 on April 17, 2019, 06:30:17 AM »
Exactly what I needed! You just saved me several hours. Thanks! mobdro
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