Smartisant soil moisture level sensor is designed to provide an accurate and reliable method to detect the moisture level in soil. The primary application is automated or smart irrigation systems.
The sensor was designed to address the main issue with many of the sensors currently available, which use a resistance technique to measure soil moisture content. This approach results in galvanic corrosion of the probes, leading to them failing. To address this, our sensor uses an alternating current (ac) sensing method and A4 (marine grade) stainless-steel probes. The sensor is also resin encapsulated to make it fully waterproof.
The sensor has a three wire interface for a supply voltage of 5V to 12V dc. Power consumption is less than 5mA. The output is proportional to the moisture level and varies between 0V and the supply voltage. This sensor is ideal for interfacing to an Arduino processor using a 5V analogue input port.
The standard sensor comes with probes that are 90mm long and 1.5m long leads.
We have documented a project to build an automated irrigation system using this sensor on our Dream Green House website, including software examples and the hardware.
Our @smartest_home occasionally tweets about the soil moisture levels for the plants that it looks after for us. This includes an avocado plant. Soil moisture sensors allow each plant to have a customised watering plan.
Our @smartest_home occasionally tweets about the soil moisture levels for the plants that it looks after for us. This includes an orange tree. The use of soil moisture sensors means that each plant is watered optimally and the irrigation system is incredibly efficient in using water.
