The servo valve segment of the #PrintAirPipe system can be used as a controllable valve.

The valve blade is controlled by an MG90 servo. Thanks to the built-in ESP32, the servo can be controlled via WiFi or the touch sensor on the housing. 

The LED shows the states open (green) and closed (red). The firmware is based on #ESPhome and the files are available on my blog nerdiy.de

STLs & ESPHome Configuration:

• https://nerdiy.de/en/product-2/printairpipe-125-servo-valve-3d-druckbar-stl-dateien/