Hello all, I am attempting to run the LabVIEW LINX example Blink_Advanced VI but seem to be falling at the first hurdle. I can connect to the raspberry pi OK but when I run the Blink VI I get the error 'Warning: Connection to the target (raspberrypi) has been lost.' I click ok and the VI stops. I right click the Raspberry Pi entry in the project file and try to connect to the Pi again and get the error message 'failed to connect to the target' I have looked through various forums and people have said could be a PSU issue. I am using a 5V 3A PSU so shouldn't be that, plus I am running the pi with no monitor or mouse and keyboard. I have attached some images of my system configuration and error messages that I am seeing. I am running LabVIEW 2020 professional and have downloaded the latest version of Labview LINX. If anyone can offer any assistance it will be much appreciated, Thanks in advance, Iain

Hello David, I have managed to get it working! What was causing my issue was I had the 1-wire interface enabled. (Preferences > Raspberry Pi Configuration > Interfaces) I disabled this and it now connects and runs fine. The other confusing thing is that in the Digital output you set seems to refer to 40 way pin number rather than GPIO number?? i.e. I set Digital Output as 7 in the VI expecting GPIO 7 (pin 26) to pulse but GPIO 4 (pin 7) pulses.

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LabView LINX - Connection to the target (raspberrypi) has been lost

Solved!

I face the same issue with you, let me try to disable the 1-wire interface as your suggestion.

Yes, great! After disable the 1-wire interface, this issue is really resolved.

Colin Zhang
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LabView LINX - Connection to the target (raspberrypi) has been lost

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