Hello!
I am a student at university using a raspberry pi for the first time. I have it connected to a touchscreen display that uses the "SDA" and "SCL" pins. I want to add a driver board to my current configuration, but that requires bit-banging (I believe?) so I tried to create a new i2c bus by going into my /boot/firmware/config.txt and adding a line "dtoverlay=i2c-gpio,bus=3,sda=17,scl=27", after I sudo reboot, I go to the terminal to type ls /dev/*i2c* and I do not see the /dev/i2c-3 like I would expect.
I also have tried still using the board regardless, but I'm not too sure what addresses are referring to my tablet vs. referring to my driver board.
Please let me know what I am doing wrong![Sad :(]()
I am a student at university using a raspberry pi for the first time. I have it connected to a touchscreen display that uses the "SDA" and "SCL" pins. I want to add a driver board to my current configuration, but that requires bit-banging (I believe?) so I tried to create a new i2c bus by going into my /boot/firmware/config.txt and adding a line "dtoverlay=i2c-gpio,bus=3,sda=17,scl=27", after I sudo reboot, I go to the terminal to type ls /dev/*i2c* and I do not see the /dev/i2c-3 like I would expect.

I also have tried still using the board regardless, but I'm not too sure what addresses are referring to my tablet vs. referring to my driver board.
Please let me know what I am doing wrong

Statistics: Posted by bubblee252 — Thu Feb 22, 2024 3:40 pm — Replies 2 — Views 69