A Raspberry Pi based light show and web app. Check out the docs here
When you first turn on your pi, use the welcome screen to choose your language, set a password, and connect your Pi to your wireless network. Then open up a terminal window and run the following commands
This command will print out your ip configuration:
ip r | grep default
which will look like this:
default via 192.168.4.1 dev wlan0 proto dhcp src 192.168.4.70 metric 302so in this case, my Raspberry Pi's IP address is 192.168.4.70 ( not 192.168.4.1)
sudo systemctl enable ssh
sudo systemctl start ssh
sudo bash -c "$(curl -fsSL https://raw.githubusercontent.com/jdthorpe/ras-lights/main/setup.sh)"On my raspberry pi zero, I couldn't use the browser to view this page, because the browser wouldn't open. So for this step, I logged onto my pi from my main computer using SSH, by opening a terminal window on my computer and typing
ssh pi@192.168.4.64where the ip address is the ip address of the Pi on my local network. I then copied the above command from my browser into the ssh session.
If the install script worked, you can open a browser and navigate to your Pi's IP address to view the app.
- make an IP address reservation on your router (so you can find your pi online)
- disable visual mode on your pi (optional, probably)
Plug an 8 light strand like this one into GPIO pin 18 (typially pin 12 on the
pi) and visit the app at http://<<your pi's ip address here>>/
The /home/pi/ras-lights/config.ini file contains the confifuration parameters.
These are the ones you should touch
Includes settings for the rpi-ws281x library which is used to interface with the light strand.
ledsindicates the number of leds on the strand.dma, `brightness indicates the number of leds on the strand.
loop_delay_mscontrols the delaty time time in the event loop that runs the light show. The default (50) will refresh the lights about 20 times per second.