Arduino Soil Moisture Sensor (Lesson #14)

Have you ever taken care of a plant? It can be tricky to get it right. You have to remember to water it regularly, and you also have to make sure to give it the right amount of water — not too much or too little. What if technology could help? In this engineering project, you will learn how to automate the entire process of watering a plant. Using a soil moisture sensor and a pump, you will build a circuit that will automatically detect when the soil is too dry, add water, and stop when… Read more

Robots are made to go and do what humans either can not, or do not want to do. They are used in hundreds of ways from exploring Mars, to working tirelessly on a manufacturing line, to providing companionship. Not to mention they make great movie characters! … Read more