This blog post is aimed at students and enthusiasts who want to make a contactless hand sanitizer dispenser machine with Arduino. A step-by-step tutorial is provided in this blog, along with the required components and the Arduino code. In times of COVID-19, along with social distancing and masks being required in public places, these sanitizers can also be used at various locations, such as outside your house, near lifts in apartments, or at your college canteen.
Happy Electronics!

This informational blog regarding Soil Moisture Sensor is aimed at beginners and students. In this blog, Pooja explains the working principle of a Soil Moisture Sensor, the circuits integration with Arduino Nano (along with relevant Code), specifications and pin configuration.

Furthermore some relevant information regarding Frequently Asked Questions about the Soil Moisture Sensor; like 'Can soil moisture sensor be placed in water? How to test soil moisture sensor?', 'Can soil moisture sensor be used as pH sensor?', and 'What is the output of soil moisture sensor?', 'How to set threshold value in soil moisture sensor?', and 'Can humidity sensor be used as moisture sensor in soil?' are provided.

Plants are the best buddies we can wish for. Their high levels of selfless service deserve utmost care and innovation in handling. Maintaining the right amount of humidity within the soil is paramount for our plants, and our busy lives sometimes restrict us in providing their necessity of water.

VOILA! Pooja has solved this problem for you. Additionally you shall also find this as a fun and engaging project, while sparing you the guilt of a plant dying due to loss of action at our hands.

Special: You also have multiple options to explore and we've left out hints for you to innovate and build multiple modes into this Plant Life Support System!