After a terrible couple of days updating Node and Node-Red - all working thanks to DJ... the serial port on the PI3 is not having it. I've turned off console use of serial, disabled BT and Pi user is part of the relevant group but I STILL cant send a simple string to serial (either ama0 or S0) - pe…

I remember when I tested my greenhouse system on the Pi3 (using an SD card from a Pi2) that I was getting rubbish from the serial attached radios (Pi in the house controlling an Arduino in the greenhouse)/ I movedc platform after that to Omega Onion + Arduino expansion. I've since moved house and ha…

No, not using USB serial. There is also an issue with some USB-Serial chips on Arduinos that aren't recognised on boot.

@scargill Are you getting an error shown anywhere (node-red-log, syslog ...)?

[image] scargill: I STILL cant send a simple string to serial (either ama0 or S0) - permissions.... I even simply changed permissions - - there HAS to be a way to do this.. as far as I can tell, the NR serial port node is fine Have you tried from a console terminal?

Sorry - my error. Had to remove bluetooth - then it worked. Their second serial connection is no good so Bluetooth had to go to get serial. They dont make it easy.

[image] scargill: They dont make it easy. No they don't. Nice to see you back and around by the way, hope you are keeping well?

Node-RED

Node-RED Forum

Raspberry Pi 3 B+June Raspbian Serial Port Node-RED

General

zenofmud 13 July 2018 16:46 3

Is this another case? Serial port will not work with cable already plugged in

Topic		Replies	Views
Cant get serialport to work General	13	15153	28 March 2021
Serialport node does not work General	3	364	12 January 2023
Serial on Raspberry PI3B+ don't work General docker	11	325	23 May 2024
Node-red arduino General	10	844	18 July 2021
Node-red on Pi not showing the Serial USBs Hardware node-red-node-serialport	11	288	11 July 2024

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.

Raspberry Pi 3 B+June Raspbian Serial Port Node-RED

Related topics