AD Keyboard module allows you to use an analog port to read the five key states, save for the Arduino IO port, with Arduino sensor expansion board can be done using multiple buttons for interactive work.

5 buttons occupy an analog port, saving resources

Analog acquisition, press the different buttons of different voltage output

High quality Omron button, sensitive and durable

For Arduino platform, compatible with Arduino sensor interface

Provides schematics, Arduino test code

This is a simple moisture sensor for detecting moisture of the soil. Using this sensor makes and automatic watering system. When you are not at home for a long period of time, it can sense that your plat are thirsty.

5.5V power supply, the greater the humidity, the greater the output voltage.