Plant watering reminder
A buzzer and a red LED when the soil is dry.
I want to build a plant watering reminder on an Arduino Uno: a soil moisture sensor, and a buzzer and a red LED when the soil is dry.
Parts
Arduino Uno R3 CH340G ATmega328P Board In stock
Capacitive Soil Moisture Sensor V2.0 In stock
Active Piezo Buzzer Module 5V 2.3kHz In stock
5mm LED Assorted Pack (Red, Green, Blue, Yellow, White) In stock
23 AWG Solid Core Hookup Wire In stock
USB Type A to B Cable (1m) In stock
120 Resistors 1/4W Carbon Film Assortment Kit In stock
Pins, wiring and code
The pin table, the wiring steps and the code for this build are in Soldr. Start this build on Soldr - you can change it before you buy.