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

Topic		Replies	Views
Issue getting serial data into Node-RED General	4	459	18 December 2021
Node-red-node-serialport issue General	4	396	18 February 2022
Node-red-serialport Serial-in Debug No Messages General	7	201	19 February 2023
Serial in node not working in node-red 0.20.5 General	4	453	15 April 2019
Trying to get serial port working General	5	585	18 August 2022

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

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

Related topics