Use an Arduino Nano connected to the Pi via USB. Write a simple sketch to read serial commands (e.g., "L1" for light pattern 1). The Nano then drives transistors to trigger the original light effects. Even better: use LEDs and a NeoPixel ring replaced inside the bubble tubes.
: Many NSM jukeboxes are compatible with remote control kits. These often have a dedicated "Credit" button that allows you to add plays remotely without opening the machine. 3. Digital NSM App Hacks Nsm Music Jukebox Hack
Once in service mode, use the keypad to navigate to step (often labeled as "Price for Credits"). Enter the value 255 . Use an Arduino Nano connected to the Pi via USB
: You can wire an Arduino Mega to the original 40-year-old buttons to read user input, then pass that data to a Raspberry Pi to stream music from Spotify or local MP3 files. Even better: use LEDs and a NeoPixel ring