05-17-2018, 01:46 PM
(This post was last modified: 05-17-2018, 02:13 PM by TheOldPresbyope.
Edit Reason: fixed pin ennumeration
)
(05-17-2018, 05:48 AM)mancio61 Wrote:(05-16-2018, 02:03 PM)Tim Curtis Wrote: Try the gpio cmd
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Hi Tim
So, running GPIO readall, this is the output. Consider that Moode 4.1 is running, and that the HifiBerry DAC PRO+ il pluggeg onto the RPi.
I suppose that the GPIO with ALT0 mode are the ones used by DAC. I don't understand the V columns. Are there any GPIOs not properly working? How can I test them using the gpio command parameters (I didn' found any kind of help on web...)
Thanks
Hi, @mancio61
Basically, you have to go to the source code to find out the "V" stands for Value.
The HiFiBerry site states which GPIO pins are taken up by their products (GPIO usage). In summary, stay away from Pins 3 and 5 (used for configuration) 12, 35, 38, and 40 (for the DAC+ sound interface), and 27 and 28 (always reserved...see the description).
I'm having trouble understanding why, if your OLED display works with one Python program but not another, you are looking for a hardware problem, which is what I believe @remy1961 tried to point out as well. Are you using exactly the same hardware with the two programs?
Sorry, I don't (yet) have any displays, OLED or otherwise, to play along with.
Regards,
Kent
