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 - Saurabh_B

Pages: 1 [2] 3 4 ... 23
16
Evaluation Tools / Re: NHD-TFT40 PWM pin
« on: August 28, 2017, 02:07:03 PM »
Hello,

Can you tell me what pins are drawing current?

The display VDD itself will still be powered without the backlight, for this you would need to trigger the display's standby mode. (DISPOFF)
After triggering this, you will still get current draw for the DC/DC converter used to boost the voltage. (5V input)

The PWM signal only controls the brightness of the backlight. The backlight isn't tied to any circuits on the display that would cause it to shut down or pause.
The PWM signal doesn't stop the current drain for the backlight voltage booster either, to stop this you would need to shut down the power being provided to the +5V input of the NHD-TFT40

17
OLEDs / Re: Supply voltage for KZW series OLED
« on: August 25, 2017, 08:09:31 AM »
Awesome, please let us know how the project works.

18
OLEDs / Re: Supply voltage for KZW series OLED
« on: August 24, 2017, 08:38:39 AM »
Unfortunately we do not have datasheets on the change in brightness.
However we can see that its half to 2/3 as bright as a 5V, this would also be dependent on the color.

19
Graphic LCDs / Re: Create a fun car entertainment system
« on: August 24, 2017, 08:13:17 AM »
Hello Jack,

Unfortunately we have not heard of nextion in the past, I'm not really sure how their displays will work.
However i will mention that most standard LCD panels have a standard operating temperature of -20C to 70C & a storage of -30 to 80C.


20
TFTs / Re: Operating Temperature range NHD-10.1-1024600AF-LSXV#-CTP
« on: August 23, 2017, 04:07:41 PM »
Hello,

When operating an LCD close to the lower end of its operating temperature, the display itself will start lagging.
The Rise and Fall times for pixels will start becoming larger, and you will notice that switching screens will take a little bit more time.
At the lower end of the operating range you also run the risk of damaging the LCD due to the liquid crystals freezing.
If used in the cold i would recommend placing a heating element behind or inside the same enclosure as the display to keep its temperature maintained.

On the opposite end, when you run the display above the recommended high operating temperature you run the risk of permanently causing dark spots to appear on the screen.
At or around 50C this shouldn't be a problem. However if you do go above this you can start seeing dark spots appear and if it continues to operate, the spots will become permanent.

The 10.1" TFTs are a new product for us and we do not have any extended range panels available as of yet.

21
OLEDs / Re: Supply voltage for KZW series OLED
« on: August 23, 2017, 10:50:05 AM »
Hello,

The standard character OLED displays can be powered via 3.3V, however please note that the brightness of the OLED panels will be dimmer than what is optimal.

You would need to apply 3.3V to the VDD, and have a logic voltage of 3.3V as well.

22
Graphic LCDs / Re: NHD-C160100DiZ and Raspberry Pi
« on: August 21, 2017, 02:12:30 PM »
Hello Joel,

1. Yes the display will work at 100khz
2. The supply current is dependent on what the display is showing and how far you are using the voltage booster, it can use up to 1 mA of current when fully powered.
3. This display does require 2 capacitors. can you tell me if you have both connected the way they are shown on page 4 of the datasheet?
4. You can find example code for this display here: NHD-C160100DiZ

23
Hello Joel,

1. Yes the display will work at 100khz
2. The supply current is dependent on what the display is showing and how far you are using the voltage booster, it can use up to 1 mA of current when fully powered.
3. This display does require 2 capacitors. can you tell me if you have both connected the way they are shown on page 4 of the datasheet?
4. You can find example code for both of the displays here:
NHD-C0220BiZ
NHD-C160100DiZ

24
Character LCDs / Re: NHD-C0216CiZ-FN-FBW-3V No ACK
« on: August 15, 2017, 08:26:40 AM »
Currently working on this via email with customer.

25
OLEDs / Re: spontaneous reverse mode with NHD-0420CW
« on: August 15, 2017, 08:25:30 AM »
The options that would allow you to remap the output would include the Entry Mode set as i mentioned in my previous post, along with the Set SEG Pins Hardware Configuration command on the OLED Command Set Table (RE = 1, SD = 1)

Attached is the layout for the COM and SEG lines on our OLED.
The Segment Remap command is better explained on Pages 33 & 34 of the controller datasheet (http://www.newhavendisplay.com/app_notes/US2066.pdf)

26
OLEDs / Re: spontaneous reverse mode with NHD-0420CW
« on: August 14, 2017, 09:57:30 AM »
Hello,

Would it be possible to add another set of commands to your initialization?
There are a few ways this display allows you to switch the text so that you can get reversed text or even upside down.

This is often controlled by the Entry Mode Set (extended [RE = 1]).

If the display is reversed (Characters coming from right to left, i would recommend possibly reversing the Segments (BDS = 0)

You can find more information about this on the controller datasheet pages 26, 33 & 35.
Datasheet Link: http://www.newhavendisplay.com/app_notes/US2066.pdf

27
TFTs / Re: NHD-10.1-1024600AF-LSXV-CTP #SUPPORT
« on: August 03, 2017, 09:02:16 AM »
Hello,

This display does not come with a built in Controller.
Can you tell me what MPU you are using to write to the display? Also does your MPU support a LVDS controller?

28
Hello,

Glad to see you have the display working, and thanks for uploading your code.

29
Hello,

Looking at your trace, it looks like you're clocking in the SDA on the falling edge.

When you are sending the Address, it looks like you are sending a 0xF0 instead of the 78. Would you be able to try 0x3C for your address?

30
Character LCDs / Re: NHD-0216K1Z
« on: July 21, 2017, 02:09:25 PM »
That's great to hear, were you able to figure out the command that helps you get to the second line?

Instead of being a new line, this is actually the Set DDRAM address.
You can find a datasheet for one of our displays here: http://www.newhavendisplay.com/specs/NHD-0216K1Z-FL-YBW.pdf

On page 6 of the datasheet, we have the master table of instructions. On this we are using the Set DDRAM Address command (4th command from the bottom).
Using this you can set the cursor to any position of the display, the addresses of the digits can be found on the bottom of page 5.

Pages: 1 [2] 3 4 ... 23