The devices are now under the tty group.change the group of the new serial devices.KERNEL='ttyAMA0', SYMLINK+='serial1' GROUP='tty' MODE='0660'Īnd reload your udev rules: sudo udevadm control -reload-rules & sudo udevadm trigger disable the serial console: sudo systemctl stop & sudo systemctl disable make sure you have pyserial installed if you're using the python serial library, not python-serial from apt. I am trying to get the SPI work and my sensor is responding but for some reason the MISO pin (pin 19) is not accepting any input.I tested the output of the sensor and it gives the expected output for the WHOAMI register but as soon as I connect the SDO of the sensor to MISO, the output goes down to zero and I don't see anything oscilloscope.remove console=serial0,115200 from /boot/firmware/cmdline.txt on Ubuntu and /boot/cmdline.txt on Raspberry Pi OS.I got this to work on Ubuntu20.04, Ubuntu18.04 and raspberry pi OS (raspbian) 2020 Sensors > MPX5010DP Pressure Sensor The problem is that I dont know how to wire the pins In the case of the KY-040, they Rotary encoders are used. Here's some things I needed to do specifically to connect to a device like the Roboclaw.

Wire library not working with serial