Pixel firework

The firework will be on a 3 metre stem with 10 spokes at the top each measuring 1 metre in length. I will use 12v 30/10 strip - 20 nodes (60 leds) for the stem and 8 nodes (24 leds) for each of the 10 arms. So this adds up to 300 leds, or 2 x 5m strips.

The second image shows the dc/dc converter so that the Pi zero can run off the same 12v power supply as the led's. I had to use a 5v bullet pixel to drive the 12v strip because the data output from the Pi is 3v3. The proper way to do this would be to use a level shifter (3v3 to 5v), however this seems to work ok.

You may also notice that there is no usb memory stick for the sequences. This is because the Pi zero only has 1 usb port - which I am using for the wifi. All of the sequences are stored on the SD card.

All of the electronics will slide into an off-cut of 40mm pvc pipe (sealed at the top) to weatherproof it.

The raspberry pi is running the Falcon player software as a remote device which is synchronised via wifi to my master pi controlling the whole show.

Lastly I just need to beg my neighbour opposite to place it on his house! (fingers crossed)