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Messages - Paul_B

Pages: 1 ... 14 15 [16] 17
226
OLEDs / Re: interface voltage levels for NHD-0420CW
« on: February 12, 2015, 08:23:58 AM »
Hello Pasquale,

The logic voltage levels will be based on the supply.

With a 2.8V supply, H Level input = 0,8*2.8; and L Level input = 0,2*2.8
With a 5.0V supply, H Level input = 0,8*5.0; and L Level input = 0,2*5.0

Hope this helps!

227
OLEDs / Re: Driving Slim OLED from 3.3V system
« on: February 12, 2015, 08:08:07 AM »
Hello,

Question 1: Confirm that the logic lines can just be connected directly to the PIC

Answer:

Yes, I can confirm that the logic lines can be connected directly to the PIC.


Question 2: Clarify what should be connected to VDD and REGVDD to run at 3.3 volts

Answer:

VDD will be connected to 3.3 volts and REGVDD must be connected to GND.

Hope this helps!

228
No problem John, enjoy the LCD's!

229
Hello John,

The best contrast would be black text with a white background  8)

Please see the link below:
http://www.newhavendisplay.com/nhd0216k1zfswfbwl-p-296.html

230
Hello,

Transmissive:

An LCD screen that uses a backlight. Transmissive LCDs are widely used in portable computers and provide excellent viewing indoors. They must be used outdoors in the shade because direct sunlight overwhelms the backlight, making viewing difficult, if not impossible.

Reflective:

A reflective LCD uses the ambient light in the vicinity. The light passes through the LCD layer to a mirror, which reflects it back to the viewer. Reflective LCDs are the least costly, but require bright light. Viewing is difficult in dark rooms or outside at night. Reflective LCDs can also be built with frontlights, which significantly improve the viewing in dimly lit environments.

Transflective:

A transflective LCD uses both transmissive and reflective methods. It uses a backlight as does transmissive, but also adds a reflective mirror that lets light pass through from the back.

Transflective LCDs are a compromise that allows users to obtain better viewing under both lighting conditions. However, because the mirror is built to let through backlight as well as reflect frontlight, it cannot do both equally as well as mirrors dedicated to one purpose. As a result, transflective LCDs are typically not quite as bright indoors as transmissive units and not as bright outdoors as reflective ones.


Even though transflective appears to be the best method, it may not be the best for you. You need to consider your applications specific needs. For your application you can use either a reflective or a transflective LCD.

Hope this helps!

231
TFTs / Re: NHD-5.0-800480TF-ATXL#-CTP backlight Driver
« on: February 11, 2015, 07:49:17 AM »
Hello,

We do not have a specific part number for driving the backlight, if you search on Mouser for "LED Lighting Drivers" you will find what you are looking for.

Please see the link below:

http://www.mouser.com/ProductDetail/Fairchild-Semiconductor/FAN5333BSX/?qs=7b5JlGc8jUgG8nkhKPwSvQ%3D%3D

Hope this helps!

232
OLEDs / Re: 0420CW-AB3 I2C Talking, Display is off and low current drawn
« on: February 10, 2015, 07:39:49 AM »
No problem, enjoy your display!

233
OLEDs / Re: Need help/wisdom using the new NHD-0420CW-xxx
« on: February 10, 2015, 07:38:06 AM »
No problem George, happy coding!

234
OLEDs / Re: 0420CW-AB3 I2C Talking, Display is off and low current drawn
« on: February 09, 2015, 02:05:33 PM »
Hello,

It is definitely possible that you may have damaged the display, however lets first rule out user error.


Can you please answer the following questions:

What value pull-up resistors are you using?

When using VDD is REGVDD grounded?

Does your initialization sequence match with what is listed in the datasheet.

Finally, if possible can you please upload your code.

Thanks!


235
TFTs / Re: nhd-ffc20-1
« on: February 09, 2015, 09:17:50 AM »
Hello,

Welcome to the forum! To answer your question the pin description of the TFT and controller board can be seen on page 4 of the datasheet.

http://www.newhavendisplay.com/specs/NHD-7.0-800480EF-20%20Controller%20Board.pdf

Regarding the pin numbering please see the mechanical drawing, listed on page 3.

Finally both FFC connectors on the controller board are Top Contact, meaning the pins on the FFC /FPC cable face up.

Hope this helps!


236
OLEDs / Re: Need help/wisdom using the new NHD-0420CW-xxx
« on: February 09, 2015, 08:24:05 AM »
Hello George,

I actually have some example code I can share with you.  It is written for the Arduino Mega.  See below:

https://github.com/NewhavenDisplay/NHD_US2066-Arduino-Mega

Hope this helps and please keep me posted on your progress!

237
OLEDs / Re: NHD-0420DZW 8-bit interface
« on: February 03, 2015, 07:39:54 AM »
No problem, enjoy your OLED!

238
OLEDs / Re: NHD-0420DZW 8-bit interface
« on: February 02, 2015, 02:46:16 PM »
Hello,

The example code provided is 100% verified to work. Please double check your wiring and if possible check your control signals with an oscilloscope, see page 11 in the displays datasheet.

http://www.newhavendisplay.com/specs/NHD-0420DZW-AY5.pdf

Can you also please list your full code. e.g. Initialization sequence

Thanks!


239
TFTs / Re: NHD-5.0-800480TFT-ATXI#CTP TOUCH problem
« on: January 06, 2015, 08:58:05 AM »
Hello,

You're welcome!  Thank you for sharing your issue & solution!

240
OLEDs / Re: NHD-042ODZW-AY5 Jumpers for Serial Interface
« on: December 18, 2014, 02:01:21 PM »
Hello,

Question:

1. When the spec sheet calls for an "OPEN" jumper, do I need to unsolder the factory installed surface mount resister and remove it from the board entirely?

Answer: Yes, you will need to unsolder the surface mount resister and remove it from the board entirely.



Question:

2. When the spec sheet calls for an "L" jumper, do I need to unsolder the factory installed surface mount resister and resolder it in a new position?

Answer: Yes, you will need to unsolder the surface mount resistor and shift it over. You will see 3 pads labeled H_PS_L.
H = High
L = Low

In your case position the resistor across PS and L.

Hope this helps!


P.S. Don't forget to check out the image I attached.

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