This circuit consists mainly of the following components: a solar cell, a DC pump, a 555 timer, and an LM311 comparator. It worked well and was also very efficient, requiring only power from the solar cell rather than a battery. Read more
Let’s make a simple plant watering alarm circuit that sounds alarms when the soil is dry. It’s powered by a self-sustainable 6V solar cell. Read more
It worked by sounding an alarm when the water level rose to the set level. So we can close the water valve in time and prevent an overflow. Read more
Tank empty! No water! You do not like it. Let’s make automatic water level controller circuit. Keep constant water. Simple parts. You can do. Read more
Simple ideals of soil moisture detector circuit projects, can alarm with LED and buzzer, and controller as water for plants Read more