AUTOMATED TANK DRAINER - Microcontroller, pump, water level sensor and a relay switch

This is a system I created to make an automated tank drainer:

• Selected microcontroller: Nodemcu v3 ESP8266
• One XF30 Micro usb module
• A 5v relay
• A 5v Pump
• A 5v transformer
• A water level sensor : I used a ZP4510. You can use other sensors, but make shure to adjust threshold value in the .ino file.

The code is provided as an.ino file
If anyone needs the wiring diagrams, I'll do them.

For box files: the file formats.f3d (Fusion360),.step and.stl are provided