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Messages - Paul_B

Pages: 1 ... 7 8 [9] 10 11 ... 17
121
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!

122
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  ;)

123
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.










124
TFTs / Re: nhd-7.0-800480ef-atxv color issues
« on: September 25, 2015, 10:36:33 AM »
Not a problem, have a great weekend!

125
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  ;)


126
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!


127
OLEDs / Re: NHD-1.5-128128UGC3 + Beaglebone Black
« on: September 24, 2015, 08:14:33 AM »
Hi Parsec!

A great place to start is by viewing our example Arduino code:

https://github.com/NewhavenDisplay/NHD-1.5-128128UGC3_Example/blob/master/examples/test/test.ino

You will need to modify the initialization sequence in the BBB iolib to match the NHD-1.5-128128UGC3 parameters.

Be sure to have the NHD-1.5-128128UGC3 example code open and scroll down until you see the "Initialization Start", see lines 1055 - 1106 and modify the appropriate files in iolib  ;)

Hope this helps!

128
Character LCDs / Re: Trouble with serial interface on NHD-0420D3Z-FL-GBW-V3
« on: September 24, 2015, 07:53:27 AM »
Hello chughes!

Iím sorry to hear about the trouble you are having with NHD-0420D3Z-FL-GBW-V3.

To start off can you please post a screen capture of your terminal log.

Finally have you received your second display? If so can you please confirm the operation status.

Thanks!

129
Very exciting!

Be sure to keep us posted on your progress  ;)

130
Hello Michael!

I highly recommend you check out CadSoft's community library repository. This is where Eagle users can upload files to share with other EAGLE users.

http://www.cadsoftusa.com/downloads/libraries

Hope this helps!

131
OLEDs / Re: NHD-1.5-128128UGC3 + Beaglebone Black
« on: September 17, 2015, 04:36:59 PM »
Hi Parsec!

I highly recommend you check out this link  ;)

http://www.element14.com/community/community/designcenter/single-board-computers/next-gen_beaglebone/blog/2014/01/04/bbb--small-oled-graphic-display


Please note the following write up uses the SEPS525 controller (same as our 1.69" Color OLED: NHD-1.69-160128UGC3). You will need to modify the initialization sequence and other various parameters if you would like to use NHD-1.5-128128UGC3.

Hope this helps!

132
OLEDs / Re: NHD-2.7-12864UMY3 Mechanical Info
« on: September 09, 2015, 04:39:23 PM »
To answer your second question, yes resistive touch screens work with gloved hands  8)


The resistive touchscreen is the most common type of touchscreen. Except for modern smartphones, tablets and trackpads, most touchscreens we come in contact with are actually resistive touchscreens. As youíve probably guessed, the resistive touchscreen relies on resistance. In that respect, itís pretty intuitive to understand Ė the pressure you apply causes the screen to respond.

Hope this helps!

133
OLEDs / Re: NHD-2.7-12864UMY3 Mechanical Info
« on: September 09, 2015, 04:35:27 PM »
Hi mnauss,

NHD-12864WG-BTMI-V#N and NHD-12864WG-BTFH-V#N-ND are both transmissive displays meaning all of the light is provided from the backlight of the LCD Panel.

A transmissive LCD looks great in indoor environments, but can be quite dim when in direct sunlight.


I highly recommend you use NHD-12864WG-BTFH-V#N

http://www.newhavendisplay.com/nhd12864wgbtfhvn-p-1095.html

NHD-12864WG-BTFH-V#N is a transflective LCD, which is a combination of a transmissive and reflective LCD.

Feel free to contact me if you have any questions or concerns. :D


134
In a Liquid Crystal Display (LCD), V0 is used to vary the screen brightness or contrast. Contrast, simply put is the ratio of the light areas to the dark areas in a LCD.

135
Hello Gregory,

I recommend using a 10K potentiometer  ;)

This will let you adjust the contrast. Each LCD will have slightly different contrast settings so adjust accordingly and always consult with the displays datasheet.

http://www.newhavendisplay.com/specs/NHD-0216BZ-FL-YBW.pdf

Hope this helps!

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