Water level sensor bracket for self watering christmas tree!

thingiverse

This is part of the automatic christmas tree watering device that I built with an Arduino Uno, a Relay module, 2 water level floating sensors and a submersible pump. This is a bracket to mount 2 float sensors at slightly different heights. One of the floats will measure the low level of water, the other one measures the high level of water. When the low level sensor is triggered, the arduino code will enable the pump until the high level sensor is triggered. Basically it keeps the water level at the base of the christmas tree between the high and low levels. One comment that's important to note, the tube from the pump to the base of the christmas tree to have a small hole in it to allow for some air to get into the line. Otherwise, when you turn the pump on it will create a siphon and it will overfill the christmas tree. By adding the hole into the supply line tubing some air is allowed in when the pump is turned off and this breaks the vacuum that is causing the siphon. Enjoy! Bill of Materials: 1 submersible water pump Tubing (to connect pumo in reservoir tank to bottom of christmas tree) 5 gallon bucket ( to act as the reservoir tank ) 1 arduino uno 1 relay module 2 float sensors ( I used these ones : https://www.amazon.com/QX-Electronics-Switch-Plastic-Arduino/dp/B07252VQCM ) I also used this as the case for my arduino, it seemed to work well. https://www.thingiverse.com/thing:2163844