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maxwellhadley / node-red-contrib-rfxcom

node-RED nodes to access an RFXtrx433 transceiver
BSD 2-Clause "Simplified" License
22 stars 13 forks source link

No connection to RFXtrx433E #38

Closed bergh-io closed 6 years ago

bergh-io commented 6 years ago

Hello

I'm trying to get this thing working but I can't get it to connect to my RFXtrx433E.

I set the port to /dev/ttyUSB0 witch work great in Home Assistant with the component https://home-assistant.io/components/rfxtrx/ but here it just say disconnected.

I tried to remove all settings in HA in relation to the RFXtrx component so only Node-red would try to connect to the unit but it did not work either.

I have no clue on how I should move forward, hoping someone could give me a hand in this.

maxwellhadley commented 6 years ago

First (obvious) question: have you stopped Home Assistant, so that the RFXtrx433E is available for another program to use? Second, some Linux systems have a habit of changing the device file path allocated to a USB serial device if the device is unplugged and plugged back in again, so it may not be /dev/ttyUSB0 any more. There is a utility script provided with the node to search all available serial ports for RFXCOM devices. From a shell prompt, cd to the node-red-contrib-rfxcom install directory (the one containing the package.json file), and type:

npm run find-rfxcom

This will print the device port for, and basic information about, all the RFXCOM devices it can find. Note, though, that if some other program has the RFXCOM device open, find-rfxcom will not be able to locate it.

bergh-io commented 6 years ago

Yes, and as I said, I also removed all settings in HA so it would not connect to the RFXtrx433E.

The system says that it only has something connected to /dev/ttyUSB0 so that should be the right port. Hass.io is som kind of Docker-thing, so I have no idea how to cd to the correct folder to try that script.

I can solve things another way by using the RFXtrx in Home Assistant and then use node-red-contrib-home-assistant to connect to it via Home Assistant, maybe not the correct way but at least it works :)

maxwellhadley commented 6 years ago

The script is installed as a part of node-red-contrib-rfxcom, you should run from the install directory (usually somewhere under ~/.node-red). It's not part of Home Assistant

bergh-io commented 6 years ago

Hass.io is the OS, based on resinOS and comes preinstalled with Home Assistant. I then installed Node-Red with the add-on from here https://github.com/notoriousbdg/hassio-addons

So I have no access, via ssh, to the install directory of node-red, or at least I have no idea where it is installed.

maxwellhadley commented 6 years ago

You mean you installed Node-RED as an add-on to Home Assistant? I suspect you may need to set some permission in a config somewhere to allow it to use the serial port. I'm afraid I can't really help you. Maybe try asking on https://community.home-assistant.io/t/repository-notoriousbdg-add-ons-node-red-ha-bridge-and-gogs/23247.

If you do get it to work please add a comment here and I will add a note to the documentation.

If you can get access to the log output from Node-RED it will report its working directory

maxwellhadley commented 6 years ago

Did you get anywhere?

bergh-io commented 6 years ago

No, I got another RPi with Rasbian and installed it on that one.