Arduino robot kit, raindrop, rain, plant leaf humidity sensor, can be used for monitoring various weather conditions, and with relay direct output, control motor start and close.
1. The sensor is made of high-quality fr-04 double-sided material, with a super large area of 5.0 * 4.0cm, and the surface is treated with nickel plating, which has superior performance in anti-oxidation, conductivity and service life;
2. The module is directly equipped with high-power relay to control the load directly;
3. Potentiometer is equipped to adjust the sensitivity and control the opening of relay when water content is different.
When the power supply is connected, the power indicator is on. When there is no water drop on the sensing board, the relay will pull in and start the relevant equipment. The switch indicator light will be on and a drop of water will be dropped. The relay will be disconnected and the switch indicator will not be on,
Module power supply: 5V, static current: 5-12ma
Load capacity of relay: 250V 10A (AC) 30V 10A (DC)
1. One raindrop sensing board and one relay control board
2. Two 20cm DuPont wires, convenient for wiring