Hallo, I try to read data from a serial port of raspberry PI. I have connected two PIs via serial Port. With "node serialtest.js" I get a new line for each character I send to node.js With node-red this is my testflow. I now my node sends no messages, so debug window stays empty. [{"id":"cf7998f7…

That was a really nasty error. I've tried with built-in serial node and got the same error: Serialport was closed upon first receiving char. I've tested on another Node-RED instance. There it worked. Problem cost me a few hours, but still I don't know where it came from. I've renamed .node-red di…

edje11 23 November 2020 09:07 10

Not clear what pi you are using, however have a look at this.

Serial on Raspberry PI3B+ don't work

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Reading from serial. Works in sample-js file, but when running in node-red serial port gets closed

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