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OLED Display 16x2... doesn't work
#4
(05-16-2018, 12:07 PM)remy1961 Wrote: Hi,
The fact that WinstarOLED_Display.py works means that the wiring is good. What happens when you run the original RaspDacDisplay.py without any modification? And during the installation process there was no error message?
Remy

"the wiring is good" means that the wiires are connected in the right pins AND that the soldering for that pins is OK.. Correct? This was one of my hypothesis (bad soldering...).
Regarding running modules:
1) Running WinstarOLED_display.py as stand-alone script, the OLED tests run correctly
2) Running the original RaspDacDisplay.. non error is raised, no messages on the console (only the ones that I added to have a kind of simply debug...).
3) The RaspDacDisplay.Log file seeems perfect, no error/warning records inside...

OK, I follow your suggestion to move DB7-connected wire from GPIO22 to GPIO27 (changing obviously the constant assignment in the WinstarOLED_Display.py driver


Additional question: is there a simple way to test the status of the RPI GPIOs. Clearly I suppose that this test shall be run with no devices connected to the 20x2 connector.... Only to verify that all the GPIOs are working correctly (remember that I have an HAT DAC plugged on top of the RPi, so I soldered a 20x2 connector on it to replicate the RPIs' one)

thanks
Andrea
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Messages In This Thread
OLED Display 16x2... doesn't work - by mancio61 - 05-13-2018, 07:46 PM
RE: OLED Display 16x2... doesn't work - by mancio61 - 05-16-2018, 01:21 PM

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