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Messages - Paul_B

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31
Evaluation Tools / Re: NHD-4.3xxx-Shield - Vertical Mode
« on: January 09, 2017, 04:16:36 PM »
Orientation switching support was recently added to the second generation FT81x IC's.  Portrait operation is not natively-supported on the FT80X IC's.

32
TFTs / Re: EMI/EMC design tips for NHD-4.3-480272EF-ATXL#
« on: December 09, 2016, 03:44:53 PM »
Below are a few tips that should help improve your design:
 
   Ground the TFT's bezel
   Utilize flat cable Ferrite core (used for FPC/FFC cable)
   Utilize EMI shielding foils and film
   Place 33 Ohm resistors in series on the display lines to help improve EMI performance

Please note that the bezel can act as a shield keeping noise from other system components it must be well grounded to provide the best immunity.

Shielding techniques can go a long way toward reducing electromagnetic/RF interference (EMI) and delivering reliable systems.

Hope this helps, feel free to contact me if you have any questions or concerns.




33
OLEDs / Re: NHD-2.8-25664UCB2 goes dark under heavy updates
« on: December 09, 2016, 08:28:53 AM »
Morning Peter,

The maximum frequency depends on the slave device in this case the NHD-2.8-25664UCB2. After reviewing the SSD1322 datasheet the max clock speed is 10MHz, you will need to lower the clock speed so you are not in violation of the datasheet.

1 / (100ns) = 10MHz

34
OLEDs / Re: NHD-2.8-25664UCB2 goes dark under heavy updates
« on: December 08, 2016, 11:23:50 AM »
Morning Peter,

Im sorry to hear about the trouble you are having with the NHD-2.8-25664UCB2. I feel these are software related issues on your end. Can you please provide the library link and attach your initial setup sequence?

Finally, for trouble shooting purposes can you provide me with a detailed pin-out diagram so I can verify your connections?

Hope this helps, feel free to contact me if you have any questions or concerns  ;)

35
Character LCDs / Re: NHD-0216K3Z-FL-GBW-V3 outputting 5V on data pin
« on: December 07, 2016, 08:34:51 AM »
Glad to hear you got your display up and running!

Thanks for sharing your solution, it will definitely help others  :D

36
OLEDs / Re: NHD-0420DZW-AG5 OLED character module--Displaying junk data
« on: December 07, 2016, 08:30:53 AM »
Morning Spandana,

When designing a display into your system, the first thing to consider is what components in the system are generating noise that the display might pick up. It is important that the system rails and ground be as noise free as possible. At the system level, utilize a star topology ground design connected to chassis ground or earth ground, if available.

Below are a few tips that should help improve your design and eliminate / minimize the corrupt data you are experiencing:

  • Utilize EMI shielding foils and film
  • Place 33 Ohm resistors in series on the serial interface lines to help improve EMI performance

Shielding techniques can go a long way toward reducing electromagnetic/RF interference (EMI) and delivering reliable systems.

Hope this helps, feel free to contact me if you have any questions or concerns.

37
Character LCDs / Re: NHD-0216K3Z-FL-GBW-V3 outputting 5V on data pin
« on: December 05, 2016, 07:57:30 AM »
Im sorry to hear about the trouble you are having with the NHD-0216K3Z-FL-GBW-V3. All displays are tested before they leave our facility, chances that it is DOA is fairly low.

First to enter the RS‐232 mode, both R1 and R2 should be open. Can you please confirm that both R1 and R2 are open on the back of the display?

Second, can you please confirm you are using matching the displays BAUD rate? By default the BAUD rate is 9600, and is changeable with a command function (see page 7 in the displays datasheet).
http://www.newhavendisplay.com/specs/NHD-0216K3Z-FL-GBW-V3.pdf

Third, the RS232 signal must be 5V TTL compatible, can you also confirm that this is what you are using for the communication?

Finally, can you provide me with a detailed pin-out diagram so I can verify your connections.

38
Evening,

The LCD and backlight pins should be soldered directly onto a thru-hole connection on a PCB (not a cable).

For your convenience I have attached the recommended footprint below  ;)

 

39
OLEDs / Re: I2C Errors on NHD-0216CW-AB3 but not NHD-0220CW-AB3
« on: December 02, 2016, 08:38:39 AM »
Morning Eric,

Im sorry to hear about the trouble you are having with the NHD-0216CW-AB3. All displays are tested before they leave our facility. We have never experienced this issue, both displays utilize the US2066 controller and share the same timing.

Can you provide me with a detailed pin-out diagram so I can verify your connections / pull-ups?


40
TFTs / Re: NHD-7.0-800480EF-ATXV
« on: December 02, 2016, 08:32:20 AM »
Resolved via email, post closed.


41
TFTs / Re: NHD-7.0-800480EF-ATXV
« on: November 30, 2016, 10:20:36 AM »
Morning,

The backlight requires a constant-current mode boost converter E.g. FAN5333BSX

http://www.digikey.com/product-detail/en/fairchild-semiconductor/FAN5333BSX/FAN5333BSXCT-ND/3042778

What source are you using to power the backlight? If you have a DMM can you please post the current draw and voltage?

Finally the Data Enable & Display on/off signal will have no affect on the backlight.


42
Glad to hear you got your display up and running!

Thanks for sharing your solution, it will definitely help others  :D

43
Graphic LCDs / Re: NHD-C128xx 3D models
« on: November 23, 2016, 07:51:23 AM »
Morning,

For 3D model requests, can you please email nhtech@newhavendisplay.com.

Thanks!

44
OLEDs / Re: NHD-0216CW-AB3 and an Arduino Micro
« on: November 02, 2016, 10:10:05 AM »
Glad to hear you are up and running!

45
Glad to hear you are up and running! The library was originally written with the old IDE, and since then the avr-gcc compiler has changed and certain keywords/datatypes give errors in the new Arduino IDEs.


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