Monitoring temperature and humidity through IoT (Internet of Things) is one of the most popular and practical DIY projects for the home — and for good reason. Whether you’re tracking the temperature in your child’s room or managing a self-regulating indoor heating system, these projects almost always start with a reliable temperature sensor.
There are plenty of sensors available on the market that are fully compatible with Arduino and other development platforms. Choosing the right one can make a huge difference, especially when accuracy matters.
Temperature sensors are widely accessible and affordable — you can find models ranging from $0.50 to $10, both on major Asian e-commerce sites and at your local electronics store. But not all sensors are created equal, so understanding their technical specs and limitations is key before starting your project.