Recent Posts

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31
TFTs / Display Font related issue
« Last post by darshana on December 27, 2017, 04:58:41 AM »
Sir,
Im working on Newhavens 2.4 inch display (ST7789S controller, 240X320) certain letters on creating font appears to be stepped ( for example W) this letter does not appear to be smooth, similar is the case with other slanting letters, is it the limitation of the hardware that creates this look for the font. Please do reply for the same.
32
OLEDs / NHD-0220DZW-AB5 help!!!
« Last post by woozlf on December 22, 2017, 03:25:18 AM »
Hello,

1. Question 1:
     After reading the NHD-0220DZW-AB5 datasheet, I did not find a way to control the screen brightness. I do not know if the product does not support it or if it is not my way.
2. Question two:
     I have 3 NHD-0220DZW-AB5 displays, but one of them does not work (screen does not light), +5 V power supply, SPI control.

Thank you in advance for assistance.

Chris
33
OLEDs / Re: Example MikroC code for NHD-0216AW-IB3 I2C
« Last post by Saurabh_B on December 19, 2017, 05:23:30 PM »
Hello Chris,

I'm sorry we do not have any example codes in MicroC or xc8.
Many of the i2c examples do use the Wire.h library, however we do have an example where we are bit banging the data to make it easier to follow.

Would you be able to email nhtech@newhavendisplay.com for this, we would be able to provide this to you.

34
OLEDs / Example MikroC code for NHD-0216AW-IB3 I2C
« Last post by cbrun17 on December 17, 2017, 02:22:27 PM »
Hello,

After reading datasheets for the NHD-0216AW-IB3 and US2066 controller, I am no closer to getting this display to work. Frankly, I have no experience with Arduino yet all I find are examples written using Arduino code and libraries. I am looking for a simple "Hello World" example in either MikroC (preferable) or xc8.

Thank you in advance for assistance.

Chris 
35
Customer Projects / Re: Pachinko Counter Version 1
« Last post by CarlW on December 15, 2017, 07:54:17 PM »
Probably should mention what Newhaven product was used. ::)

NHD-4.3CTP-SHIELD-N


36
Customer Projects / Re: Pachinko Counter Version 1
« Last post by Paul_B on December 14, 2017, 08:21:12 AM »
Brilliant, thank you for sharing Carl! Can't wait to see version 2  ;)
37
Evaluation Tools / NHD-7.0CTP-CAPE use touch screen in portrait mode?
« Last post by Arnie on December 14, 2017, 02:30:15 AM »
Greetings,

I have here NHD-7.0CTP-CAPE with BeagleBone Black and the Ubuntu 14.03-3.8 image up and running ok. I can rotate the display in xorg.conf.d ebdev.conf to portrait mode, but the touchscreen is not rotated. This is regardless of the options set in xorg.conf.d evdev.conf. What could be wrong here?

evdev.conf:

Section "InputClass"
        Identifier "evdev touchscreen catchall"
        MatchIsTouchscreen "on"
        MatchDevicePath "/dev/input/event*"
        Driver "evdev"
#        Option "Rotate" "CCW"
#        Option "InvX"
#        Option "InvY"
#        Option "SwapAxes" "true"
#        Option "InvertX" "true"
#        Option "InvertY" "true"
#        Option "GrabDevice" "true"
EndSection

38
Customer Projects / Pachinko Counter Version 1
« Last post by CarlW on December 13, 2017, 07:16:33 PM »
This was a fun project for my hobby - pachinko.

The folks at the Newhaven Forum were helpful; thanks!

I'm excited to start on version 2 with the new shield and larger displays!
Think my pachinko counter shield will fit in between the new products with no modifications but have not tested.

The housings were 3D printed.

This project "keeps score" of a pachinko machines shots and winnings.

The side boxes are optional and are used for game artwork and have a LED ring inside.
The speaker fits on either side end cap.

https://youtu.be/IjlP6dGSasc





39
TFTs / Re: Touchscreen Defect on NHD-7.0CTP-CAPE-N
« Last post by Saurabh_B on December 13, 2017, 04:34:07 PM »
Hello,

I'm sorry to hear you're having an issue with this.
Would it be possible to contact us via. Email @ nhtech@newhavendisplay.com
40
TFTs / Touchscreen Defect on NHD-7.0CTP-CAPE-N
« Last post by Ives Soares de Oliveira on December 13, 2017, 02:30:08 PM »
We bought about 50 units of NHD-7.0CTP-CAPE-N capes for BeagleBone. We have tested about 15 units here and unfortunately, we have 4 units with a strange behavior.

The touchscreen's area, from the middle to the top, is not working. With an oscilloscope, I saw that when I touch this area, there isn't an INT signal.

Furthermore, I've read the FT5x06 registers and saw that there isn't a change on registers 0x03-0x06 when I touch the defect area. These registers should contain the X and Y coordinates.

Take a look at my i2cdump on the address range 0x00-0xff. At this moment I wasn't touching at any point of the touchscreen.


root@beaglebone:~# i2cdump -y -r 0x00-0xff 2 0x38
No size specified (using byte-data access)
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 dc 93 51 bd aa a5 00 00 11 52 22 34 00 00 74    .??Q???..?R"4..t
10: 05 7f d3 00 00 49 22 11 74 00 00 2a cb c7 46 00    ???..I"?t..*??F.
20: 00 84 b8 61 df 00 00 53 08 5b 8c 00 00 d0 da ca    .??a?..S?[?..???
30: 3f 00 00 be f1 f5 eb 00 00 24 28 39 e7 00 00 00    ?..????..$(9?...
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
80: 19 3c df 00 06 a0 01 0a 0a 28 93 da db df db 9b    ?<?.?????(??????
90: e8 21 32 32 32 32 6e 32 40 1b e4 75 ae 62 f2 5c    ?!2222n2@??u?b?\
a0: ff 30 03 55 01 01 03 01 79 00 00 ce 5d 88 96 05    .0?U????y..?]???
b0: 87 05 e6 64 32 1e 7f cf d1 c9 bf 2d 64 80 27 1a    ???d2??????-d?'?
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00    ............?...


The TFT display is working properly but the touchscreen is not. The touchscreen stopped working after a while, I would say, 2 months. They were running 7 days 24 hours.

My NHD-7.0CTP-CAPE-N capes have the following text on the back: UL: E330731 0117.

We are running Embedded Linux (kernel 4.4) on these BeagleBones and we are using the edt_ft5x06 driver which can be found at the following link: https://raw.githubusercontent.com/beagleboard/linux/4.4/drivers/input/touchscreen/edt-ft5x06.c

Do you have any hint? Maybe I can send these units for your analysis and RMA. I'm worried because we have a lot units here to sell to my customers.
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