wb2dyb
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Activity overview
Latest activity by wb2dyb-
wb2dyb created a post,
NHD0420CW-A*3 tHREE LINE MODE, MIDDLE LINE DOUBLE HEIGHT
Well, learned more but really having trouble figuring out the command structure. And have a display lash up on the desk, and keep fiddling with codes and cannot seem to figure out the three line ...
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wb2dyb commented,
Success! I was getting no results yet. So I cut and paste the init from the OLED pdf instead of what I had. Your last app ran first time, pictures enclosed...My cpp file: (it's a real mess, but it ...
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wb2dyb commented,
LCD.sendData(0)Sends that character from ROM CLCD.sendData(1)Likewise sends that from ROM C, if I make itLCD.sendData(It sends the lefty pointing arrow, etcGeorge
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wb2dyb created a post,
Library that works fine on the NHD-0420CW-A*3
I found a library that works very nicely with the 420CW displays.https://github.com/gadjet/1602-OLED-Arduino-Library/blob/master/OLedI2C.cppThere is one modification needed,original: void OLedI2C::...
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wb2dyb commented,
Paul, been down with a bug all week, finally tried this code, display's fine with 0x10 on other slim char OLEDs modification. Thanks, y'all!I need to study what that all means now...GeorgeC
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wb2dyb commented,
it didn't upload the second pix...[attachment deleted by admin]
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wb2dyb commented,
Well, I get 4 lines. The picture with the arrows are the code in SPI more, the two-wide gibberish is in I2C mode...I need to give my brain a rest...GeorgeC [attachment deleted by admin]
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wb2dyb commented,
Well, it looks like it is really for I2C, seeing Wire.beginTransmission(slave2w),Wire.write(tx_packet[ix]);, Wire.endTransmission();, and when commenting out #Wire.h and un commenting #SPI.h get ...
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wb2dyb commented,
Thanks Paul, I'll try that in a few. I am not as stupid as I thought. I had figured that 0x01 was to clear and that with r/e tied low then 0xa0 was "next line" because it changes the DDRAM address....
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wb2dyb commented,
OK. I'm trying to understand what is going on in NHD_US2066.cpp, but being an RF jockey by trade, not really following this code. I know my problem is in there. After using the mentioned code from ...