Recent Posts

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91
Evaluation Tools / Re: Does NHD-FT81x-SHIELD support Arduino due?
« Last post by Ted_M on November 26, 2018, 03:42:23 PM »
Hi Nachalan,

Unfortunately the Due is not compatible. The NHD-FT81x-SHIELD requires an operating voltage of 5V to be supplied by the Arduino.  The Arduino Due board runs using a 3.3V operating voltage.

For a list of compatible Arduino's, please refer to our NHD-FT81x-Shield User Guide on page 11.
http://www.newhavendisplay.com/userguides/NHD-FT81x-SHIELD_User_Guide.pdf

Best Regards,
92
Evaluation Tools / Re: FTDI Eve screen editor
« Last post by Ted_M on November 26, 2018, 03:26:46 PM »
Hi Nachalan,

FTDI has just released a new Asset Builder Tool that allows you to generate Fonts, convert JPEG images, Video files and Audio into EVE compatible formats.
The new "EVE Asset Manager" tool can be found on FTDI's Website here:  https://www.ftdichip.com/Support/Utilities.htm#EVE%20Asset%20Manager

Also, the new "EVE Screen Designer 4.5" tool is available from the same link.

Best Regards,
93
Character LCDs / NHD-0216S3Z-FL-GBW-V3 Cannot Use I2C To Change I2C Address
« Last post by billtrib on November 26, 2018, 06:45:46 AM »
I can write to this display using I2C or Serial, no problem: commands, text, cursor etc. However, after clearing the display and setting the position to home when I write the address change command to the display it echoes a "b" indicating that it did not interpret the command as a command. Self-test still shows I2C address as 50h. I have a 10ms delay to make sure the address change sticks.

If I use serial then I can change it. Sending the command to display the I2C address displays whatever address I set. However, if I power off, set the jumper to self-test then power on the display shows the I2C address as the default 50h.

Is there a firmware update?
Thanks in advance for any help,
Bill
94
Evaluation Tools / Re: FTDI Eve screen editor
« Last post by Nachalan on November 26, 2018, 02:26:41 AM »
Thanks so CarlW, that video you posted helped so much in solving my problem. What's the latest version of the EVE screen editor?
95
Evaluation Tools / Does NHD-FT81x-SHIELD support Arduino due?
« Last post by Nachalan on November 26, 2018, 02:23:41 AM »
I'm happy to be part of this forum. Just a little question that needs an answer
Can NHD-FT81x-SHIELD work with Arduino due,
Would there be any changes to the examples library for the 7 inch displays from your github repository, when using the ICSP header for SPI ?

I'd be glad to hear from you.

Thanks
96
Character LCDs / Re: Problem with WHITE COLOR CHAR on NHD-0440WH-ATMI-JT with 2 lines
« Last post by Alee_S on November 21, 2018, 01:33:08 PM »
Hi Michele,

The code you have shown looks good to me.

It could be possible that Pin 12 may not be receiving enough contrast voltage to display correctly, hence you are seeing blue with a contrast loss under 2-line mode.

How are you currently connecting Pin 12 of the display? Are you using fixed resistors, or a potentiometer?
Also, what is your measured voltage reading on Pin 12 of the display?
97
Graphic LCDs / NHD-C12864A1Z-FS(RGB)-FBW-HT1 Arduino Uno example
« Last post by jainvikas8 on November 21, 2018, 05:22:25 AM »
Hi guys,

   Wonder if there any example code for Arduino Uno to work with NHD-C12864A1Z-FS(RGB)-FBW-HT1 Display?

Thanks.
 
Product link http://www.newhavendisplay.com/nhdc12864a1zfsrgbfbwht1-p-3896.html
98
Graphic LCDs / C12864WC vs C12864LZ - Driving differences?
« Last post by bugfixin on November 18, 2018, 05:17:14 PM »
Hi, I have a couple of PCBs I've made with extremely similar circuitry, the only difference is in the pinout / connector for the display, a 30 pin flat flex for C12864WC (NHD-C12864WC-FSW-FBW-3V3-M) and a 28 pin 0.05" header for C12864LZ (NHD-C12864LZ-FSW-FBW-3V3-ND).

Both are using a 4x booster circuit with 1uF ceramic caps, resulting in approximately 12.8V on the vout terminal, with the same capacitance on v0-v4, driven via "4-wire" SPI with the same software using the same configuration values.

The C12864WC has MUCH lower contrast, to the point that it's almost invisible, while the C12864LZ works perfectly. The datasheets do not mention any real differences in software settings (at least not that I've seen), is there a significantly different value (electronic volume, etc?) i should be setting for one vs the other?
99
TFTs / Re: NHD-2.4-240320CF-CTXI#-F Display Not Responding
« Last post by sjdorsay on November 18, 2018, 08:13:06 AM »
I finally have my display changing colours. However, the colours being displayed aren't the correct ones. For example when I send 0xF800 (Red) I get cyan. When I send 0x001F (blue) I get yellow. I am using the 8-bit parallel bus with 16 bpp (565 RGB). I will just treat it as a CMYK display.

For anyone who might have similar issues here is what I went through to get my display working.

Arduino:
1) 5V logic needed to be shifted down to 3.3V logic
2) Avoid using digital pins 0 and 1

Nucleo-F411RE:
1) Some of my jumper connections were not strong enough
2) Continue avoiding digital pins 0 and 1
3) Add delays after data bus is set to ignore cross talk interference
100
OLEDs / Blinking Double Height Font NHD-0216CW
« Last post by MatthewKerr on November 13, 2018, 05:45:23 PM »
Hi.
I am using double height font with the NHD-0216CW. I would like to create a blinking effect by writing to DDRAM address 0x00 and 0x40 and switching between the two addresses. For example, i would write the following to each address:
0x00:  'Test:         On'
0x40:  'Test:           '

By switching between the two addresses, the right hand side of the display would appear to blink. This is to highlight to the user that the text 'On' is modifiable.
Currently I re-write to the display when I want the switch/blink to occur. But I suspect there is a better way to do this.
Thanks.
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