markdpend
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Recent activity by markdpend-
Thanks for the reply. That's a great idea on the PIR sensor. I already incorporated an LDR sensor in the latest model to turn off the display at night but replacing it with a sensor that can turn...
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Well the problem went away as mysteriously as it showed up. It's been sitting several hours unplugged since the first pictures were taken. Pics below. You can see some of the burn-in on this o...
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Thanks for the quick reply. Sorry, I had the wrong part number. It's the NHD-0420DZW-AG5, not the slim one. The displays are mounted in a plastic box. All power (VCC) and ground is via connecto...
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Adding two pictures. Removed the protective cellophane tape and shows a call from Newhaven. Used a different contrast for the second picture, display color shows up much stronger while the bloc...
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The following pictures illustrate how one can use Newhaven's NHD-0420DZW-XXX OLED 4x20 character OLEDs to display data in a 'bar chart' fashion. Two pictures show the Number of Calls that came i...
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Bridgett,Thanks for the discount coupon. I just bought 4 more OLED displays and saved some money. I now have enough parts to build and sell another dozen or so, then off to the next hobby unless ...
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Thanks for taking the time to help. Several buttons failed early too which could corroborate humidity is the culprit. I'll see what I can do about sealing it better.
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It's hooked up in 4-bit parallel mode. Pins 1-2 are VSS and VDD respectively. Pin-3 is NC. Pins 4-5-6 are control pins RS, R/W, and E. Pins 7-10 are NC. Pins 11-14 are data pins DB4-DB7 driv...
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Hi, What happens if one does connect pin-2 to VDD?