Control up to 3 servomotoes by Bluetooth and an Arduino board, access the board code (.ino file), schematics in PDF completely free, you can integrate up to 3 motors controlled by grades 0 to 180 and with deactivation time all through the application with a single click, within it you can consult the schematic and a quick start guide, very simple connections for a complete integration.
Enjoy version 1.0

-Degrees 0 - 180 per motor (3 individually controlled engines)
-Minimum time 1 second maximum 4 min 15 sec. (250 seconds)

Minimum requirements: Having an Arduino Uno board, Bluetooth Module HC-05 or HC-06, A Servomotor SG90 or MG996R, these are not included in the application are necessary materials to enjoy the app. Make sure you have such materials.
Enjoy it