Simple soil moisture alarm circuit diagram using 1.5V battery

Simple soil moisture alarm circuit diagram using 1.5V battery

Why withered trees. It is dying. Oh, the soil is too dry. How can we use electronics to help trees? Build Simple soil moisture alarm circuit. The tree is very necessary for humans. Because can clean waste air, as a food, housing, medicine, etc., We should tree planting as well. Water is necessary for the … Read more