Toolkit for workshop: Photometer with optic & acoustic indicator

The photonics materials of this toolkit are available for purchase.  Cool! Make me a quote.

Photonics Components

Photonics Components: 
Neopixel ring

Electronic Components

Electronic Components: 
WeMos Controller
Loudspeaker 45 Ohms
Photodiode BPW34
USB A to Micro B
Electrolytic caps 4,7 micro Volt/16V
Resistor 270 Ohm
Switch for loudspeaker