L298 Dual H-Bridge Motor Driver (2A) 7410 It uses a capacitive humidity

It uses a capacitive humidity sensor and a thermistor to measure thsurrounding air

When there is light

low-noise amplifiers

74HC08 is  a Quad 2-Input  AND Gate

Connection with Arduino on SPI port

L298 Dual H-Bridge Motor Driver (2A) 7410 It uses a capacitive humidityIntroduction : L298 Dual H Bridge Motor Driver (2A) is based on the L298N heavy duty dual H bridge controller, which can be used to drive two DC motors at up to 2A each, with a voltage between 5 and 35V DC or one stepper motor. Connections : Features : Logical voltage : 5V. Motor supply voltage : 5V 35VDC. Drive current : 2A (MAX single bridge). Chip : L298N. Max power : 25W. Dimensions : 43 x 43 x 27mm. Weight : 30g .