DIY Plant Moisture Sensor
This project will calculate the water content of soil around a plant by measuring the dielectric constant (the soil's ability to transmit electricity) and will alert you with a red LED when the plant needs more water or a blue one when it has too much. Step 1: Materials You will need to gather these things in order to build this project: Arduino UNO or equivalent (x1): https://amzn.to/2DLjxR2 220Ω* resistors (for LED) (x3): https://amzn.to/2S2sV5R 10kΩ resistor (x1) - brown black orange: https://amzn.to/2S2sV5R RGB LED (x1) or 3 different colored LEDs: https://amzn.to/2Fzbusx Long Jumper Cables (x2): https://amzn.to/2Q7kiKc Jumper Cables (x6): https://amzn.to/2Q7kiKc Breadboard (x1): https://amzn.to/2RYqiSK Bolts of any size (x2): https://amzn.to/2qWLYTF Nuts same diameter as bolts above (x2): https://amzn.to/2qWLYTF * red-red-brown Step 2: Create Sensor Prongs You will need to repeat this...