(1)The surface using nickel-plated treatment,widened sensor area,can improve the electrical conductivity,to prevent touch the soil is easy to rust,and increase of service life
(2) The comparator uses LM393 chip and works stably
(3)Using the DHT11 with 20PIN female to female Dupont cable and 20PIN male to female Dupont cable for Arduino
(4)Through adjusting the potentiometer to control the soil humidity threshold,can automatic watering the vegetable garden,garden
(5)It can control the soil humidity in a wide range,adjusting the potentiometer to control the corresponding threshold
