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Messages - Saurabh_B

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316
TFTs / Re: NHD-4.3-480800EF-CTXP#-T EOL, replacement
« on: October 05, 2015, 08:29:58 AM »
Hi Bruce,

Unfortunately we do not have a replacement for that display that would match those specifications. We have a standard 4.3" display that has a resolution of 480x272.

It doesn't come with a built-in controller, you could get the controller board to go along with it or use a MPU with a built-in TFT controller.

On a side note, there are newer high brightness models available to help with readability in areas with a lot of ambient light.

317
Graphic LCDs / Re: NHD-C160100DiZ-FSW-FBW 3D model and assembly
« on: October 02, 2015, 08:36:39 AM »
HI,

To get the 3D model for this display please email a request to nhtech@newhavendisplay.com.

There are multiple ways to mount it onto your case, You could create an enclosure with an opening for the display to house it, or even use some double sided tape to fix it into place.

To connect it to your mpu you would need the Molex 52892-1433 connecter mounted onto a pcb such as the NHD-COG14-36.

318
TFTs / Re: NHD-2.4-240320CF-CTXI#-FT ribbon cable question
« on: October 02, 2015, 08:29:03 AM »
The length of the cable is fixed for the standard display.

However it is possible to customize the display to include a longer cable, this would require a NRE cost along with a MOQ.

If you are interested in this please email: nhtech@newhavendisplay.com

319
Graphic LCDs / Re: NHD-C12864WC-FSW-FBW-3V3 booster
« on: September 25, 2015, 09:35:08 AM »
I was wondering if you could confirm the number of capacitors you have in the circuit along with the values you are using for the following commands:

Power Control Set
Electronic Volume
Booster Ratio Set
Voltage Regulator internal ratio Set

320
Graphic LCDs / Re: NHD-C12864WC-FSW-FBW-3V3 booster
« on: September 24, 2015, 09:40:03 AM »
HI, is that 6V what you're seeing at Vout?

Also what type and values of capacitors are you using?

321
TFTs / Re: NHD-7.0-800480EF-ATXV#-CTP power supply
« on: September 24, 2015, 09:23:19 AM »
Hi Larry,

You shouldn't have any issues running both at 3.3V

322
OLEDs / Re: Shift position after "clear screen" instruction
« on: September 18, 2015, 03:50:30 PM »
I would take a look at page 22 on the Datasheet of the display for a example initialization sequence. The sequence does address the flipped bits. I would suggest adding those along with what you already have.

I will wire one up to see if I can recreate what you were seeing.

323
OLEDs / Re: Shift position after "clear screen" instruction
« on: September 18, 2015, 12:16:51 PM »
This might have something to do with the initialization of the display. This seems like it might be an issue with the Entry Mode command where the display isn't incrementing the position after a datawrite properly.

If you are sending an initialization sequence can you post that as well?

324
OLEDs / Re: Shift position after "clear screen" instruction
« on: September 17, 2015, 04:37:55 PM »
I was wondering if you could post a picture of what you are seeing.

325
OLEDs / Re: Instruction execution time for slim OLEDs?
« on: September 17, 2015, 04:23:32 PM »
I would say follow the timing diagrams.

326
HI,

Unfortunately we do not have a 16 bit controller board for the 5.7" TFT displays. However the NHD-5.7-320240WFB-ETXI#-1 does come with a 16 bit controller.

And for the month of September we have a 10% off sale on all of our TFT displays if you were interested in this display.

327
OLEDs / Re: Calculation of Font Addresses Multi‐Font Displays Help!
« on: September 11, 2015, 10:54:16 AM »
Hi, Here is some information if it can help at all:

  • The dummy Variable is 0xFF
  • You would want to save the information coming back from the MF Chip into an 8X8 Array. The MF chip will give you 8 sets of bytes. With the bytes, B0-B7 will be the font information.
  • The bits will be vertical, so you could display the information one of 2 ways, either using the bit that corresponds with the line you are currently writing and go horizontally, or go through each bit and write vertically

328
You wouldn't have to, the 6.8 ohm resistor is dropping the voltage down by 0.72 V so voltage drop across the backlight is 4.28V.


I just hooked up a the sample which I used to confirm the resistance to a power supply. While at 5V it is using 125 mA. so in this case the resistor is dropping the voltage by .75V, from which the backlight has a drop of 4.25V. You can attach a potentiometer to pin15 to drop the voltage further and decrease the brightness if you would like.

329
Character LCDs / Re: software controlled contrast is not consistent
« on: September 10, 2015, 12:31:38 PM »
Hi,

The hardware will play a role in the contrast. The 2 capacitors are part of a booster circuit that steps up the voltage required to create the contrast.

I was wondering how big of a difference you are seeing in the contrast? If possible to take a picture comparing 2 displays.

Also are there any differences between the boards on which the displays look a little bit darker? (Voltage, Resistance, or capacitance)

330
It is a 6.8 Ohm Resistor.

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