i am trying to control a WS2812B ledstrip with the neopixel node.
i am using a raspberry pi 3B with 2022-01-28-raspios-bullseye-armhf and node red version 2.2.2.
i followed the instruction of installing the unicorn hat as suggested on node-red-node-pi-neopixel (node) - Node-RED
but i am not able to get it to work.
everything seems ok but it looks like the output signal is nog set to the giopin.
if i flash a old project with 2017 versions on the sd card using the same hardware it works.
does anybody know what the issu can be?
here some more information about the project that is not working.
Once Node-RED has started, point a browser at http://192.168.68.122:1880
On Pi Node-RED works better with the Firefox or Chrome browser
Use node-red-stop to stop Node-RED
Use node-red-start to start Node-RED again
Use node-red-log to view the recent log output
Use sudo systemctl enable nodered.service to autostart Node-RED at every boot
Use sudo systemctl disable nodered.service to disable autostart on boot
To find more nodes and example flows - go to http://flows.nodered.org
Starting as a systemd service.
6 Mar 12:47:46 - [info]
Welcome to Node-RED
6 Mar 12:47:46 - [info] Node-RED version: v2.2.2
6 Mar 12:47:46 - [info] Node.js version: v14.19.0
6 Mar 12:47:46 - [info] Linux 5.10.92-v7+ arm LE
6 Mar 12:47:47 - [info] Loading palette nodes
6 Mar 12:47:51 - [info] Settings file : /home/pi/.node-red/settings.js
6 Mar 12:47:51 - [info] Context store : 'default' [module=memory]
6 Mar 12:47:51 - [info] User directory : /home/pi/.node-red
6 Mar 12:47:51 - [warn] Projects disabled : editorTheme.projects.enabled=false
6 Mar 12:47:51 - [info] Flows file : /home/pi/.node-red/flows.json
6 Mar 12:47:51 - [info] Server now running at http://127.0.0.1:1880/
6 Mar 12:47:51 - [warn]
Your flow credentials file is encrypted using a system-generated key.
If the system-generated key is lost for any reason, your credentials
file will not be recoverable, you will have to delete it and re-enter
You should set your own key using the 'credentialSecret' option in
your settings file. Node-RED will then re-encrypt your credentials
file using your chosen key the next time you deploy a change.
6 Mar 12:47:51 - [info] Starting flows
6 Mar 12:47:51 - [info] Started flows
pi : PWD=/home/pi ; USER=root ; COMMAND=/usr/bin/python3 -u /home/pi/.node-red/node_modules/node-red-node-pi-neopixel/neopix.py 24 40 pixels 100 true 0 18
pam_unix(sudo:session): session opened for user root(uid=0) by (uid=1000)