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Messages - Paul_B

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151
Character LCDs / Re: NHD-C0220BiZ-FSW-FBW-3V3M Problem -- Doesn't power on
« on: December 10, 2015, 08:07:52 AM »
Hi Sukho,

If you would like to power on the displays backlight you will need to apply 3V @30mA (Typ.) respectively to the Anode and Cathode pins.

The wiring diagram (See page 4) shows the anode A connected to power (upward facing triangle) and the cathodes are shown connected to ground (downwards facing triangles).

http://www.newhavendisplay.com/specs/NHD-C0220BiZ-FSW-FBW-3V3M.pdf


152
Character LCDs / Re: NHD-C0220BiZ-FSW-FBW-3V3M Problem -- Doesn't power on
« on: December 09, 2015, 11:36:29 AM »
Hi Sukho,

To answer your question, No you will not see any characters appear on the LCD. Before you can really use the LCD, you must initialize and configure it. This is accomplished by sending a number of initialization instructions to the LCD.


153
Character LCDs / Re: NHD-C0220BiZ-FSW-FBW-3V3M Problem -- Doesn't power on
« on: December 08, 2015, 08:48:16 AM »
Hello Sukho!

I’m sorry to hear about the trouble you are having with NHD-C0220BiZ-FSW-FBW-3V3M. Before you can really use the LCD, you must initialize and configure it. This is accomplished by sending a number of initialization instructions to the LCD.

Please see our "Example Initialization Program" listed on page 11 in the displays datasheet:

http://www.newhavendisplay.com/specs/NHD-C0220BiZ-FSW-FBW-3V3M.pdf

Next, it would be helpful to verify your wiring / pinout. Feel free to post it below.

Finally the pin connection / wiring diagram in the displays datasheet is correct. The pin numbering listed in the mechanical drawing 8 - 1 (left to right) is there to help distinguish the correct pin order.

Please following the pin description table listed on page 4 in the displays datasheet and take special note of where pin 1 is located on the physical display when wiring.

Hope this helps!







154
OLEDs / Re: OLED SPI Chip Select (CS)
« on: November 10, 2015, 01:32:55 PM »
Hello,

I highly recommend you check out the controllers datasheet, see page 20 - 21:

http://www.newhavendisplay.com/app_notes/SSD1351.pdf

Table 8-5 and Figure 8-5 should clear things up  ;)






155
TFTs / Re: NHD-7.0-800480EF-ATXV#-CTP Backlight converter
« on: November 02, 2015, 04:17:40 PM »
Hi Paul!

One recommendation off the top of my head is the FAN5333BSX.

Digi-Key Part#: FAN5333BSXCT-ND
Datasheet: www.fairchildsemi.com/datasheets/FA/FAN5333A.pdf

Hope this helps, feel free to contact me if you have any questions!



156
OLEDs / Re: NHD0420CW-Ax3 display with Arduino Uno - Tutorials
« on: October 20, 2015, 07:46:58 AM »
In order for you to send the “Set Contrast Control”  command RE and SD must be set to 1, please see the attachment.

E.g. The following commands set RE – SD  to the appropriate values before setting the contrast.

command(0x78);
command(0x2A);
command(0x79);             

I recommend you review the US2066 datasheet, this will give you a better understanding on how to send commands.

http://www.newhavendisplay.com/app_notes/US2066.pdf

Hope this helps  ;)

157
OLEDs / Re: NHD0420CW-Ax3 display with Arduino Uno - Tutorials
« on: October 20, 2015, 07:44:56 AM »
Please try this code, let me know if the contrast changes.

https://github.com/NewhavenDisplay/NHD_US2066

Code: [Select]
//---------------------------------------------------------
/*

NHD_0216AW_XB3.ino

Program for writing to Newhaven Display Slim OLEDs based on US2066 controller.

Pick one up today in the Newhaven Display shop!
------> http://www.newhavendisplay.com/oled-slim-character-oleds-c-119_825.html

This code is written for the Arduino Mega.

Copyright (c) 2015 - Newhaven Display International, LLC.

Newhaven Display invests time and resources providing this open source code,
please support Newhaven Display by purchasing products from Newhaven Display!

*/
//---------------------------------------------------------

#include <SPI.h>
#include <Arduino.h>
#include <Wire.h>
#include <avr\io.h>

#include "NHD_US2066.h"
unsigned char text1[] = {" Please Support "};
unsigned char text2[] = {"  Open-Source   "};
unsigned char text3[] = {"   Hardware &   "};
unsigned char text4[] = {"   Software !!  "};

unsigned char text5[] = {"Newhaven Display"};
unsigned char text6[] = {" 2X16 Character "};
unsigned char text7[] = {"  Slim  Design  "};
unsigned char text8[] = {"----------------"};



void output()
{
                int i;

        command(0x01);
        delay(2);
        for(i=0;i<16;i++){
          data(text1[i]);
        }
       
        command(0xA0);
        for(i=0;i<16;i++){
          data(text2[i]);
        }

        delay(2000);

        command(0x01);
        delay(2);
        for (i=0;i<16;i++){
                                data(text3[i]);
        }
               
        command(0xA0);
        for (i=0;i<16;i++){
                                data(text4[i]);
        }

        delay(3500);
       
        command(0x01);
        delay(2);
        for(i=0;i<16;i++){
          data(text5[i]);
        }
       
        command(0xA0);
        for(i=0;i<16;i++){
          data(text6[i]);
        }

        delay(2000);

        command(0x01);
        delay(2);
        for (i=0;i<16;i++){
                                data(text7[i]);
        }
               
        command(0xA0);
        for (i=0;i<16;i++){
                                data(text8[i]);
        }

}

void blocks()
{
                int i;

        command(0x01);
        delay(2);

        for(i=0;i<16;i++){
          data(0x1F);
        }

        command(0xA0);
        for(i=0;i<16;i++){
          data(0x1F);
        }
}

void setup()
{
init_oled();
}

void loop()

  while(1)
  {
    //output();
   
    blocks();
    command(0x78);
    command(0x2A);
    command(0x79);
   
    command(0x81);  //set contrast control
    command(0x01);  //set contrast control
   
    delay(2000);
   
    command(0x81);  //set contrast control
    command(0xFF);  //set contrast control
   
    delay(2000); 
  }
}


158
OLEDs / Re: Connector type on NHD-2.7-12864UCY3
« on: October 09, 2015, 08:07:04 AM »
Hello,

Please see the part numbers below:

Molex Part# (20-Pin 1.0mm Pitch Top Contact):
52207-2060

Molex Part# (20-Pin 1.0mm Pitch Bottom Contact):
52271-2069

Feel free to contact me if you have any questions  ;)

160
Accessories / Re: Captouch TFT bexel mount
« on: September 29, 2015, 11:34:10 AM »
Hello Graham,

The same design details can be applied to the CTP panel, as always be sure to consult with the displays datasheet.

It will list vital information such as the capacitive touch panel material characteristics and other useful information which should be taken into account.

Hope this helps!

161
Character LCDs / Re: Trouble with serial interface on NHD-0420D3Z-FL-GBW-V3
« on: September 29, 2015, 11:16:48 AM »
Glad to hear you got your display up and running!

Thank you for sharing your solution  ;)

162
Hi Alias,

When prototyping I highly recommend you focus on one section at a time, there's a lot to cover in your post.

First I would suggest trying to get your display operational in 16bit mode (default state when using the BB-BONE-LCD7-01-00A3.dts) and verify that your overlay has loaded / configured correctly.
It would also be helpful to see your boot process if possible. 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.

Second when posting a pinout table please be sure to include the pin numbers from the display to the BeagleBone Black.

e.g.
Display :                                BBB
Pin  1       : LED-                    --> P8_3


Finally, it is extremely difficult to verify if your back-light circuit it correct without a schematic / wiring diagram.










163
TFTs / Re: nhd-7.0-800480ef-atxv color issues
« on: September 25, 2015, 10:36:33 AM »
Not a problem, have a great weekend!

164
TFTs / Re: nhd-7.0-800480ef-atxv color issues
« on: September 25, 2015, 08:02:38 AM »
Hello!

Thank you for sharing, sounds like your making progress.

Looking forward to the final verdict  ;)


165
TFTs / Re: nhd-7.0-800480ef-atxv color issues
« on: September 24, 2015, 08:42:23 AM »
Hi Robin!

Thank you for the information, it appears there is an issue with your data lines (RGB Data Signals).

Can you please confirm that you are grounding the LSB's on our display when using 16bit mode.

E.g.

R0  -GND (LSB)
R1 - GND
R2 - GND
R3
R4
R5
R6
R7
R8 (MSB)

G0  -GND (LSB)
G1 - GND
G2
G3
G4
G5
G6
G7
G8 (MSB)

B0  -GND (LSB)
B1 - GND
B2 - GND
B3
B4
B5
B6
B7
B8 (MSB)


Finally, can you please post the datasheet for the Truly display so I can look it over  ;)

Thanks!


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