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 ... 3 4 [5] 6 7 ... 20
OLEDs / Re: Controller questionfrom a newbie
« on: August 10, 2017, 03:28:14 PM »
Welcome to the forum  8)

To keep things simple the "Controller" or driver chip manages the display.

Take as an example the NHD-1.69-160128ASC3:

This display utilizes the SEPS525 controller and you will communicate via 4-wire SPI to your MCU.

The controller or driver chip is bonded onto the displays cable via a COF (Chip-On-Film) process.

Hope this helps!

Evaluation Tools / Re: NHD-4.3RTP-SHIELD-V Problem
« on: August 04, 2017, 01:33:56 PM »

Thanks for the update, enjoy the rest of your evening  :o

Evaluation Tools / Re: NHD-4.3RTP-SHIELD-V Problem
« on: August 02, 2017, 12:01:25 PM »
Hey Matt,

If it's not a genuine Arduino you can never be quite sure what you are getting. It sounds like the MEGA2560 clone in addition to the NHD-4.3RTP-SHIELD-V is drawing to much power. To prevent damaging your computer, the USB device drawing too much power has been disabled. Other devices may have also been disabled. When you disconnect the device drawing too much power, your other USB devices will be enabled again.

You can utilize a cheap USB Power Meter to monitor how much power is being drawn. If you notice to much power is being drawn between the two devices try dimming the backlight on NHD-4.3RTP-SHIELD-V to drop the current consumption.

The backlight control pin is a pulse width modulated (PWM) signal controlled by two registers: REG_PWM_HZ and REG_PWM_DUTY. REG_PWM_HZ specifies the PWM output frequency, the range is 250-10000 Hz. REG_PWM_DUTY specifies the duty cycle; the range is 0-128. A value of 0 means that the PWM is completely off and 128 means completely on.

Hope this help!

Evaluation Tools / Re: NHD-7.0CTP-CAPE-N no picture
« on: July 31, 2017, 04:17:25 PM »

Thank you for the information, manual updates will be required to enable all aspects of the display when using the 4.x debian kernels (stock operating system).

The BB-BONE-NH7C-01-A0.dts overlay is available for download here:

Please note that it was recently added to the default BeagleBoard Debian Image by Robert Nelson and will not be installed on the beaglebone black directly out of the box.

You are not obliged to install Ubuntu, the software support is as follows:

  • Ubuntu with Kernel 3.15, 3.17, 3.18, 4.1 support (with SGX).
  • Ubuntu with Kernel 3.8 (device tree) support.
  • Rowboat android 4.2.2 with Kernel 3.2 support.
  • AOSP Android 4.4 with Google apps support
  • 4.x Debian

Best Regards,

Customer Projects / Re: Clock and weather display
« on: July 11, 2017, 10:50:04 AM »
Brilliant, thank you for sharing Dave! Did you spin your own PCB? I would be interested in seeing a picture of the back of the weather station  ;)

TFTs / Re: Using RGB666 on NHD-4.3-480272EF-ATXL#-T
« on: June 14, 2017, 08:04:48 AM »
You can also wire them to the upper bits, in sequence  ;)

TFTs / Re: Using RGB666 on NHD-4.3-480272EF-ATXL#-T
« on: June 14, 2017, 08:02:54 AM »
Hello carrasco,

One approach is to wire all the unused bits to a fixed value (typically zero - Ground). Please note that you do not need to utilize a pull-down resistor. 

Evaluation Tools / Re: NHD-7.0CTP-CAPE-N Picture offset
« on: May 10, 2017, 08:06:32 AM »
Not a problem, you should receive the patch files via eamil shortly  ;)

Evaluation Tools / Re: NHD-4.3CTP-SHIELD-N
« on: May 03, 2017, 12:11:44 PM »
Thank you for contacting me with this inquiry, I am happy to help clarify how you can prototype with our 4.3" Arduino Shield with Capacitive Touch!

Since you'll probably be connecting other things to the Arduino (LEDs, sensors, servos) you can purchase a breakout shield and sandwich the two together. Another option to purchase an Arduino clone that has the I/O pins brought out on a second connection.

The NHD-4.3CTP-SHIELD-N is compatible with the Arduino MEGA straight out of the box, no solder jumpers need to be configured. By default it will utilize the ICSP/SPI header which is on most genuine Arduino’s.

Finally, our advice is to stick with a 7V - 8V DC adapter since most Arduino's utilize a cheap LDO and have trouble regulating at higher voltages. 

TFTs / Re: help with REG_MACRO_0
« on: May 01, 2017, 08:39:30 AM »
Question responded via email inquiry.

Evaluation Tools / Re: NHD-7.0CTP-CAPE-N Picture offset
« on: May 01, 2017, 07:50:47 AM »
Morning Rasmus,

Very strange, let me look into this bug which you are experiencing.

 In the mean time if you are interested in rolling your own overlay I am happy to send you the patch files.


Evaluation Tools / Re: NHD-7.0CTP-CAPE-N no picture
« on: April 26, 2017, 03:23:42 PM »

Have you had a chance to review the NHD-7.0CTP-CAPE 7.0” BeagleBone Black Cape User Guide?

The NHD-7.0CTP-CAPE is designed to work with existing software and drivers already developed for the BeagleBone

The Requirements for use are:

  • NHD-7.0CTP-CAPE-x
  • BeagleBone Black with suitable distribution loaded - Images available for download in the User Guide
  • 8GB microSD card
  • 5V DC supply suitable for the BeagleBone Black

It would also be helpful to see your boot process. To see the actual boot process a RS232 cable like the TTL-232R-3V3 from FTDI is needed. Just plug it into the J1 connector (located on the BBB) and open a serial terminal of your choice.


TFTs / Re: NHD-5.0-800480TF-ATXL#-T
« on: March 16, 2017, 08:26:23 AM »

I’m sorry to hear about the trouble you are having with the NHD-5.0-800480TF-ATXL#-T. Can you please provide a short video of the problem you are experiencing?


TFTs / Re: NHD-5.0-800480TF-ATXL# Sunlight Readable feature
« on: March 16, 2017, 08:17:38 AM »
Morning Laxmikant,

The NHD-5.0-800480TF-ATXL# is not a sun-readable display. We will be introducing a sunlight-readable 5.0" TFT in the up coming year.  These new displays have brightness levels and features that allow for excellent viewing quality even in direct sunlight conditions.

In the mean time feel free to check out our new 4.3" Sunlight Readable TFT:

Pages: 1 ... 3 4 [5] 6 7 ... 20