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Messages - Ted_M

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OLEDs / Re: NHD-0420CW-AW3 powering ( I2C driven )
« on: September 23, 2019, 02:37:55 PM »
Hi Sam,

The NHD-0420CW-AW3 display can be run using a 3.3V source for Vdd with no issues.  To select running at 3.3V, pin 3 for RegVdd would be grounded.

Best Regards,

TFTs / Re: LCD compatibility issue with USB (NHD-4.3-480272EF-ASXN-CTP)
« on: September 23, 2019, 02:06:22 PM »
Hi Robb,

It appears there may some contention of the frame buffer memory, or with the 2 memory layers when using both the display and the USB.  Have you tried double buffering the frames?
Please see this link for more details

Best Regards,

Evaluation Tools / Re: NHD-3.5-320240MF-PIC Eval Board
« on: September 17, 2019, 12:00:21 PM »
The NHD-3.5-320240MF TFT displays come with a 24-bit RGB interface so it would be best to connect the display to our NHD-3.5-320240MF-20 Controller Board.

It will support the 24-bit RGB display interface and allow you to program the controller's SSD1963 controller using an 8-bit parallel interface from the PIC.
Libraries are available to support the SSD1963 controller that will help get you started.  Here are a few examples:;757320

Here is a link at Digikey with more details on using our 3.5" TFT with a PIC32:

Best Regards,

TFTs / Re: NHD-10.1-1024600AF-ASXV#-CTP
« on: September 17, 2019, 10:24:43 AM »
Hi ElremGu,

Unfortunately, the Focaltech FT5x26 controller is not sensitive enough to detect touches reliably with an extra 4mm of cover class on top of the standard touchscreen's cover glass.
It is possible to add up to 2.0mm of cover glass on top of the standard touchscreen's glass and adjust the register values to increase the sensitivity. 
If a 4mm cover glass is required, then we can quote you a custom capacitive touchscreen with one piece of cover glass and a different touch controller to meet your requirements.

Please contact us at for more details and a quote.

Best Regards,

Hi jrandall11,

Try formatting the SDcard as FAT32.

Best Regards,

Please double check the logic high and logic low are within the specified target ranges when using a level shifter from 3.3V to 5V.  For a High, the logic level would need to be at least (0.8*VDD).  For a Low, the value would need to be less than (0.2*VDD).  If necessary, use a pull-up or pull-down resistor to help achieve these logic levels.
Best Regards,

TFTs / Re: Unable to use multi-touch protocol in NHD-5.0-800480TF-ATXL-CTP
« on: September 06, 2019, 04:20:39 PM »
Hi Nitin,

Please reference our Github for the Focaltech FT5x26 Linux drivers:

Best Regards,

OLEDs / Re: Valid VCC Range for NHD-0216MW-AB3
« on: August 28, 2019, 02:18:57 PM »
Changing the resistance to lower the Iref will affect the overall contrast level range that can be adjusted in software, however it may not produce a counteracting effect to the displays lifetime. This would still be dependent on the contrast level the display is set to while using the higher VCC voltage.

Best Regards,

TFTs / Re: NHD-7.0-1024600AF-LSXP-CTP timing information required
« on: August 28, 2019, 02:04:47 PM »
The RGB timing values in the HX8282-A01 look realistic for this display at 1024x600.  Please report back if these values do not work for your application.

Best Regards,

OLEDs / Re: Valid VCC Range for NHD-0216MW-AB3
« on: August 27, 2019, 05:02:57 PM »
The datasheets Optical Characteristics table is based on setting the typical value of +9V  for VCC.  This voltage is mainly used to power the OLED Glass.
Increasing this voltage will affect the OLED display's brightness and contrast along with affecting the lifetime hours to half brightness of the display.
A higher VCC voltage will not affect the logic circuitry as this is powered separately by the 5V or 2.8V VDD supply.
The calculations for Iref (used for setting the maximum contrast based on VCC) in the US2066 datasheet will also support the NHD-0216MW-AB3.

Best Regards,

« on: August 27, 2019, 09:54:28 AM »
The touch screen is a plug and play USB-HID device which is connected to through the Mini-USB port CN2.
No external drivers are required for Linux or Windows.

Best Regards,

Character LCDs / Re: Command structure for NHD-0220D3Z-FL-GBW-V3
« on: August 09, 2019, 04:59:18 PM »
Please confirm the RS-232 signal driving the display is 5V TTL .

Best Regards,

« on: August 09, 2019, 04:54:59 PM »
This effect could be caused by an insufficient DC power supply.
Please try a 6v or 7v, 2amp power supply for this HDMI display.

Best Regards,

Graphic LCDs / Re: NHD-3.5-320240MF-ATXL#-CTP-1-ND
« on: July 23, 2019, 10:47:07 AM »
From the NV3035C datasheet, it appears that the serial timing diagram on page 32 shows the Vertical Sync line VSD to be high during the Active Low Serial Chip select SPENB.
Please confirm this is performed and let us know if you are able to process the serial commands.

Best Regards,


Sorry to hear you are having some trouble getting the EVE2 TFT display working properly.

When using the NHD-FT81x-SHIELD, it is only necessary to power the Arduino itself with the 9v to 12v and 3Amp DC wall supply. 

Do not power the EVE2 TFT pins with a separate 3.3v supply in this case. 

Using a 12v supply for the Arduino may be necessary if the 20 pin interface cable is longer than 8" to 10" or if you have other devices connected on the 20 pin interface cable or SPI bus. 

It is ok to keep the USB programming cable connected to the Arduino at the same time as the DC supply for convenience in programming and testing simultaneously.

The Arduino Shield will supply 5v to drive the backlight voltage booster circuit on the EVE2 PCB so that chip will be cooler as it will produce up to 26v to drive the LED's for the backlight depending on the TFT display connected.

Best Regards,


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