hwt901b-plugin error: Resource temporarily unavailable
Hey everyone! I'm having some trouble with my WIT IMU as I won't get it to work with signalk. I already checked the device in the calibration software of the manufacturer it's running perfectly fine. Though I have selected the right port it cannot lock on it. I'm currently using a Raspberry Pi 4 B with the latest stable of openplotter headless and all installed software is up to date. I will post the debug logs below. Thank you already for taking your time!
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2025-02-27T17:18:22.454Z signalk-hwt901b-imu-plus plugin.connect
connecting to /dev/ttyUSB0:0
2025-02-27T17:15:22.458Z signalk-hwt901b-imu-plus plugin.connect.error
signalk-hwt901b-imu-plus:Error: Error Resource temporarily unavailable Cannot lock port
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3 Replies
Don’t know the specifics of your device, but this error usually means that something else has the device/port open. Only one thing can access it at a time.
Thanks a lot for help. Weren‘t able to figure out what was using that device or port. Even had the same problem on bareboat necessities OS as well. But I now changed to Ubuntu lite and got it working, installing signal k and the plugins myself
There is a way to find out which process has it open. Guessing it was some part of openplotter