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Messages - dotmatrix

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1
OLEDs / Re: seps525 col/row line troubles
« on: August 15, 2018, 09:53:42 PM »
as you can see , the more I move the  image toward column 159 the worse it gets... the image always starts at 0,0 then finshes at the programed column

2
OLEDs / Re: seps525 col/row line troubles
« on: August 15, 2018, 09:51:43 PM »
another garbled image...

3
OLEDs / Re: seps525 col/row line troubles
« on: August 15, 2018, 09:51:02 PM »
correct image

4
OLEDs / Re: seps525 col/row line troubles
« on: August 15, 2018, 09:50:21 PM »
sorry, pic above is the scrambled image...

5
OLEDs / Re: seps525 col/row line troubles
« on: August 15, 2018, 09:48:50 PM »
here is the correct image:
col: 0-19
row: 0-19

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OLEDs / seps525 col/row line troubles
« on: August 15, 2018, 09:37:16 PM »
I have the 160x128 oled module that I have been trying to get working for the last or year or so, I'm trying to dispay three 20x20 images, but they only display correctly when the row and column start at '0' (zero)
when I set the colmn to start at 0-19 and row 0-19 the image is fine, when I change the columns, for example, to 20-39, the image gets scrambled, the more I move the colums to the right or increment, the worse the image...   

7
Customer Projects / my designs, schematics, pcb's
« on: August 26, 2014, 06:19:12 PM »
how do i post pics and pdf's of my designs here?? thank you

8
OLEDs / Re: NHD-2.8-25664UCY2 PCB revisions?
« on: August 26, 2014, 06:16:20 PM »
i have been using this display fine, did you try a 2nd module??

9
OLEDs / Re: NHD 2.7 Screen Image Streaking
« on: August 26, 2014, 06:03:27 PM »
try making your refresh rate faster....

10
OLEDs / Re: NHD-2.7-12864UMY3 - VDD short to VSS
« on: August 26, 2014, 05:57:26 PM »
sounds like you fried something, unless you got a smt soldering iron, your better off buying a new module. if you do have a smt tip, you can try and desolder the lt1615 and replace it. fyi, i always use a diode in series with the positive side of my power supply to avoid reverse polarity or shorting out the regulator, etc

11
OLEDs / NHD 1.69 color oled osc freq
« on: August 26, 2014, 02:27:49 PM »
page 13 of the data sheet says to set reg 0x03 (clock div) to 0x90 to get 90 frames/sec, but the seps525 data sheet says to make it 0x30 for 90 hz. can you update your data sheet? thanx, good product btw!!

12
New Product Releases / Re: Full Color OLEDs are now available!
« on: August 12, 2014, 03:18:16 PM »
ok, thank you, good product!

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New Product Releases / Re: Full Color OLEDs are now available!
« on: August 11, 2014, 11:48:01 AM »
good afternoon, i read the data sheets on these modules and it says they draw 330ma??? is that correct or a typo?? thanks ....

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