Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - Paul_B

Pages: 1 ... 12 13 [14] 15 16 ... 20
« on: July 01, 2015, 09:36:54 AM »

Our Slim OLED character displays are available in 2x16, 2x20, and 4x20 character formats.

When you send the Double Height command you are doubling the size of the text. i.e Combining the rows (see picture attached).

I recommend looking at our Graphic OLED displays if a standard character display will not fit your requirements:

Hope this helps!

OLEDs / Re: NHD-0216CW module using SPI - Question
« on: June 29, 2015, 04:18:49 PM »
Afternoon Fred,

Thank you for sharing your code  8)

Regarding the delay for the /RES line, you will need to follow the sequence below:

Power on
Wait at least 1ms
Bring reset low
Wait at least 3us
Bring reset high
Wait at least 200ms before sending commands

Finally, the .1 second delay listed in the example code was used during mock-up and is in no way the min value. For specific delay times please refer to the US2066 datasheet:

Hope this helps!

TFTs / Re: NHD-1.8-128160EF-CTXI#
« on: June 26, 2015, 07:42:40 AM »

NHD-1.8-128160EF-CTXI# only supports a 8‐bit Parallel interface.

Have a great weekend!


Correct, this VFD display has a 14 pin connection (see picture attached). The 5-wire cable is soldered to Pin NO. 1,2,3,4,6


1. GND
2. Vcc
3. SI/SO
4. STB
5. SCK

Please let me know if you need any additional help  ;)

OLEDs / Re: NHD-0216CW module using SPI - Question
« on: June 22, 2015, 07:50:33 AM »
Morning Fred,

Below is some example code written for the Arduino  ;)

Next, (IS, RE and SD) will need to be configured correctly in order for the controller to correctly identify which command the user wishes to execute. Take a look at the initialization sequence (File: NHD_US2066.cpp). The code is heavily commented and should clear up any questions.

Please keep us posted on your progress!


To answer your question, yes you can use the linker cable as long as the pin-out matches your motherboards serial header.

Please see page 16 in the displays datasheet regarding the pin-out and how to configure the jumper settings.

Hope this helps!

Character LCDs / Re: NHD-0212WH-ATMI-JT# on 3.3V
« on: June 10, 2015, 02:00:01 PM »
Hi Dave,

Glad to hear, thank you for posting an update  :)

OLEDs / Re: NHD-0420CW-AG3 Pixel Test
« on: June 05, 2015, 07:39:57 AM »
Not a problem, have a good one!

OLEDs / Re: NHD-0420CW-AG3 Pixel Test
« on: June 04, 2015, 08:39:08 AM »

Burn-in (as in ghostly image) is a more susceptible to OLED displays, however it can still occur with standard LCD's.

The length of time required for noticeable screen burn to develop varies due to many factors. It can take as little as only a few weeks for noticeable ghosting to set in, especially if the screen displays a certain image (example: a menu bar at the top or bottom of the screen) constantly, and displays it continually over time.

Please note that screen burn-in can easily be avoided, you may want to think of a plan to reduce long-term display in the same place on the screen.

Below are a few simple steps you can take to prevent burn-in:

E.g. In your case maybe install a PIR sensor to turn off the display when no one is in proximity of the unit.

E.g. Enable the OLED's built-in scroll feature.

Finally, Karma points are given by members to other members for any reason, usually for answering or posting a helpful question  8)

OLEDs / Re: NHD-0420CW-AG3 Pixel Test
« on: June 03, 2015, 08:33:47 AM »

I have seen similar behavior before usually caused by ESD (Electrostatic Discharge) damage to the module / controller. Unfortunately in this case the damage is irreversible, generally devices with finer geometries are more susceptible to damage from ESD.

I always recommend working on a static-safe work bench and following the appropriate procedures to ensure your device is protected from ESD. This includes grounding enclosures, bezels, etc ...

Finally, can you please tell me what steps you took to ground your devices as a whole?




To answer your question yes, it is definitely possible. If you have some shorter jumper wires on hand it wouldn't hurt to swap them out.

However, I do not believe this is the culprit  ;)


Regarding your first post, can you please tell me if your MCU has built-in pull up resistors?

If so it is possible that it could be causing a weak pull-up.

Finally, I recommend you use 10k Ohm resistors. If you get no response we will continue to debug  8)


OLEDs / Re: OLED dark horizontal bands
« on: May 14, 2015, 08:15:23 AM »
Hello Edwin,

Since these OLEDs are passive matrix displays unfortunately there will always be slight banding. You can reduce the effect by adjusting the registers like you previously stated.

TFTs / Re: NHD-5.0-800480TF-ATXL#-CTP backlight Driver
« on: May 13, 2015, 05:05:39 PM »

There are no discrepancies within the NHD-5.0-800480TF-ATXL datasheet.

The backlight supply current values are: Min - 45, Typ. - 60 and Max. 75 mA

There must be an issue with your wiring or backlight circuit. Please note you have to limit your current. The reason your display is getting hot is because the supply current is 250mA.  :o

Character LCDs / Re: NHD-C0220Biz and Arduino/Teensy3.1
« on: May 13, 2015, 07:52:28 AM »

I'm sorry to hear about the issue you encountered. We have a set quality control process that is followed for every part so I'm not sure how this one got through, but we will make a note to double-check this type of issue during our QC inspections. I apologize for the inconvenience.

Please contact:


Pages: 1 ... 12 13 [14] 15 16 ... 20