Hello everyone, after some hours to try everything I found on forum I'm finished to create this topic. I try to send a string through the serial port of my Raspberry PI3B+ with node-red. Even I don't hace the correct sentence on the receiver (just a configuration), it works with the simple bash c…

Hi, Welcome to the forum. Have a look at this topic, [image] Reading from serial. Works in sample-js file, but when running in node-red serial port gets closed Developing Nodes Not clear what pi you are using, however have a look at this.

As you are using Docker, have you enabled the serial port in your Docker environment? docker serial port at DuckDuckGo DuckDuckGo. Privacy, Simplified.

Hello, thanks a lot for your response, i try this this weekend and will give you a feedback. Regards

Finally, I found some minutes to test your proposition. I enable the serial port in docker. The result is no crash of node-red when i inject a string in "serial out". Good evolution. But, the command echo "hello" > /dev/serial0 is already OK : data received the injection of "hello" in "serial o…

You might need to check the node settings to make sure they match the actual settings of the serial port. Also, I'm surprised that worked because I'd expect Node-RED to have locked access to the port. Though I'm not 100% sure to be honest. Have you checked in the dmesg log to see if there is an er…

all settings checked. No message in dmesg. No message in node red console (just inject successfully on top) How can I access to node-red log please?

I don't have the "Connected" at the bottom of the node "serial out" but it appears on the "config" node.

Sorry, the ttyAMA0 doesn't work... even after @TotallyInformation proposal to enable serial port in docker. I don't know how verify the serial port is really enable.

Hello, I found the solution there: https://community.gladysassistant.com/t/node-red-mise-a-jour-de-la-palette-node-red-node-serialport-1-0-1-fait-planter-le-docker-node-red/7154/18 It's in French but the solution is just to rebuild the node-red-node-serialport. It doesn't work with the initial bu…

[image] golfy44: It's in French but the solution is just to rebuild the node-red-node-serialport. It doesn't work with the initial build. Serial requires a compiled C/C++ component. In keeping with all Node.js apps that interface with C/C++ components, when changing major versions of Node.js…

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Serial on Raspberry PI3B+ don't work

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edje11 18 February 2024 20:50 2

Hi, Welcome to the forum.

Have a look at this topic,

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Serial on Raspberry PI3B+ don't work

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