Mini Weather Station: DHT11 Temperature & Humidity on OLED
A desk-friendly weather station that shows live temperature and humidity on a crisp OLED display — a perfect first sensor
PIR Motion Detector Alarm with Buzzer and LED
Build a simple intruder alarm in under an hour: a PIR sensor watches for movement and instantly sounds a buzzer
Automatic Plant Watering System with Soil Moisture Sensor
Never forget to water your plants again. This project senses how dry the soil is and switches on a small