Mustpoint Automatic Watering System Manager with Mini Water Pump for Arduino DIY

• This is a must have tool for a connected garden! It will be helpful to remind you to water your indoor plants or to monitor the soil moisture in your garden. Through adjusting the potentiometer to control the soil humidity threshold,can automatic watering the vegetable garden, garden, control the flower pot soil moisture. Particularly suitable for people who travel frequently! Test relay module: connect the relay module VCC to 5V, GND to ground, IN to GND, the relay will jump, and when IN is suspended, the relay will resume, so repeatedly, you can hear the relay "Kaka" sound. Test the soil moisture sensor module: Connect the fork probe and transmitter module with two DuPont wires. The transmitter module VCC is connected to 5V, GND is grounded. When the power is on, the red power light is always on, and the green (blue) light is flashing once. The fork probe is used. Directly inserted into the water, the green (blue) color indicator light is on. The red line of the water pump is connected to 5V, the black line is grounded, the pump works, pay attention to the test for 1 second, and it is not allowed to work in the air for a long time. Connect the system, powere on and if the pump has been working, it is correct. Because in the air, the probe can not detect the humidity, there is no problem if it is installed correctly in the pot.