Schill: Arduino + Adafruit Sound Effects board prototype
Schill: Ghostbusters (1984) Proton Pack, Sound Effects Upgrade: Arduino + Adafruit Sound FX board test
Schill: Testing new sound on pack amplifier
Schill: Ghostbusters Proton Pack, El-wire (2018 update)
Schill: Mattel “Matty” wand (Ghostbusters) innards
Schill: El-wire
Schill: Proton pack with DIY Arduino and Adafruit SFX-based sound
Schill: Ghostbusters Proton Pack, 2018 Update: Motion El-wire, new sound system
Schill: Ghostbusters Proton Pack, 2018 Update
Schill: Ghostbuster Proton Pack, 2018 Post-Halloween Update