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Messages - Paul_B

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1
These OLEDs are passively drawn, which means that each line is lit at once. If you have a line with almost all the pixels lit it wont be as bright as a line with only 50% or less lit up.

2
TFTs / Re: NHD-7.0-HDMI-N-RSXM -RTV touchscreen calibration
« on: May 16, 2018, 10:35:56 AM »
No problem  ;)

3
TFTs / Re: NHD-7.0-HDMI-N-RSXM -RTV touchscreen calibration
« on: May 16, 2018, 07:59:22 AM »
Hi Roman,

The AR1100 (Resistive Touch Screen Controller IC) shows up like a USB mouse, it works on all operating systems as the computer doesn't even know its a touch screen, it just thinks its a mouse. You can adjust the AR1100 to consider itself a Touch Digitizer, supported by many but possibly not all computers.

You can also re-calibrate the touch screen. We do calibrate it with the 800x480 7" screens but we recommend re-calibrating it if you feel like its not precise enough for your tastes.

If you have a Raspberry Pi available you can re-calibrate the touch IC via USB using the following program:

https://github.com/tom-2015/rpi-AR1100

or

If you have a Windows computer you can re-calibrate the touch IC via USB using the following program:

http://www.microchip.com/wwwproducts/en/AR1100#documentation

4
TFTs / Re: NHD-2.4-240320CF-CSXN#-F and NHD-TFT40
« on: April 12, 2018, 08:05:02 AM »
Hi David,

Im sorry, unfortunately the NHD-2.4-240320CF-CSXN#-F is not compatible with the NHD-TFT40.

The displays listed below are compatible:


NHD-4.3-480272EF-ATXL#
NHD-4.3-480272EF-ASXV#
NHD-4.3-480272EF-ASXN#

NHD-4.3-480272EF-ATXL#-T
NHD-4.3-480272EF-ASXV#-T
NHD-4.3-480272EF-ASXN#-T

NHD-4.3-480272EF-ATXL#-CTP
NHD-4.3-480272EF-ASXV#-CTP
NHD-4.3-480272EF-ASXN#-CTP

NHD-5.0-800480TF-ATXL#

NHD-5.0-800480TF-ATXL#-T

NHD-5.0-800480TF-ATXL#-CTP

NHD-7.0-800480EF-ATXL#
NHD-7.0-800480EF-ASXV#
NHD-7.0-800480EF-ASXN#

NHD-7.0-800480EF-ATXL#-T
NHD-7.0-800480EF-ASXV#-T
NHD-7.0-800480EF-ASXN#-T

NHD-7.0-800480EF-ATXL#-CTP
NHD-7.0-800480EF-ASXV#-CTP
NHD-7.0-800480EF-ASXN#-CTP

5
Hi Lightcalamer!

Thank you so much for sharing! Interesting project and the display looks great  ;)

6
Awesome, thank you for sharing! I actually just picked up a ESP-WROOM-32 module, I'll have to give your library a try in the near future  8)

7
OLEDs / Re: NHD-0216MW-IB3 Command Decoder
« on: March 26, 2018, 08:02:39 AM »
Hi Tim,

The IS, RE and SD bits are flags that are internal to the controller. You would set these using the commands that have the flag in as one of their parameters.

To set the RE & IS flags, you would use the Function Set Command:

(See Image1.png)

You could only set the IS flag if the RE Bit is low.

(See Image2.png)

To set the SD flag, you would first need to enter the Extended Command Set by setting the RE bit high, then using the OLED Characterization Command to set the SD Bit high:

8
OLEDs / Re: Issue about drawing on NHD-0420CW-AY320 in i2c
« on: March 19, 2018, 07:45:52 AM »
Glad to hear you got your display up and running!

9
Graphic LCDs / Re: NHD-12864-WX serial mode
« on: March 12, 2018, 09:44:04 AM »
Hey j.campanelli,

Im sorry to hear about the trouble you are having with the NHD-12864WX-T1TFH# display.

It would be helpful to verify your wiring / pinout. Feel free to post it below  ;)

10
Hi Lightcalamer! Welcome to the Forum  ;)

Brilliant, thank you for sharing your code it will definitely help others.

Best Regards,

Paul B.




12
OLEDs / Re: Issue about drawing on NHD-0420CW-AY320 in i2c
« on: March 06, 2018, 08:26:50 AM »
To verify please check the datasheet for the I2C devices on your PCB  ;)

On the NHD-0420CW-AY3 module there is an address-select line (Pin 4). For troubleshooting purposes you can try to tie the address-select line (Pin 4) HIGH 3.3V. Please note that you will probably have to cut a pin / trace since your schematic shows it tied to GND. Finally, be sure to update the displays I2C Slave address to 0x3D in your software.

Disclaimer: Modified product will void warranty.

13
OLEDs / Re: Issue about drawing on NHD-0420CW-AY320 in i2c
« on: March 05, 2018, 10:30:25 AM »
Can you confirm that the I2C slaves do not have conflicting addresses?

Thanks!

14
OLEDs / Re: Issue about drawing on NHD-0420CW-AY320 in i2c
« on: March 05, 2018, 09:49:46 AM »
Hey Arrgon,

What value pull-up resistors do you have on the SCL and SDA lines?
 
Has the timing been verified on an oscilloscope?

15
OLEDs / Re: Issue about drawing on NHD-1.27-12896UGC3
« on: March 02, 2018, 02:18:48 PM »
Hi Balzs,

The NHD-1.27-12896UGC3 module is mounted in the correct orientation, which is always a good start  8)

At this time I'm not entirely sure what is causing the stretched / misaligned text. There obviously is an issue with the initialization sequence that needs to be pin pointed.

Are you available for a brief call today so I can help you troubleshoot?

Tel: +1 (847) 844 8795 - Ask to speak with Paul


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