Which system do you use? Android, Ubuntu, OOWOW or others?
Linux
Hi,
I would like to know which pins on the 40 pins can be set as digital input/ digital output. I need around 23 I/O pins. can any of the 40 pins except the 5V,3.3, 1.8V and GND pins be configured as digital input or output.
I am also wondering this question. Got an alternative solution that is using spi based gpio extender. Is there a way for use i2c or i2s pins as a GPIO pin?
I already tried this method and really worked fine. However i am still working for change the pins 18-19-25-26 as gpio pins. Also i don’t know these pins are able to change.
I do see the document to enable I2C using device tree overlay.
Can you please guide me into how I can access device tree overlay on VIM3 Ubuntu 20.04 Khadas official image emmc flash, as I get the error: permission denied or no such directory exists even under root.
Is there any documentation or video that explains the steps on how to do it?