Some aspects that motivated the development of iRain
In irrigation process, the whater must be spread arround uniformly, so iRain prevent irrigation when is windy. This avoids watering places that don't have plants or grass.
Because the garden soil is no uniform, the water absortion is not equal from garden to garden. The soil humidity sensor measures the need of water in the garden.
Using the weather forecast up to 3 days, iRain determines if it's appropriate irrigate your garden today or wait for tomorrow, because it is expected to rain.
Does not make sense water the garden if it is very hot, because the water that was suposed to infiltrate the soil will evaporate due the high temperature, at that momment. iRain will choose the best time to irrigate your garden.