Sensors
Choose modules that can transmit information about the surroundings to your board. Sensors are categorized based on the type of information they convey and the manner in which they deliver that information
The main two groups of sensors are analog and digital.
Digital sensors are less numerous, providing a Boolean output of "True" or "False." They are user-friendly and often cheaper than their analog counterparts. However, the binary nature of their output limits the information they convey. Digital sensors are thus ideal for functioning as triggers in systems that activate when a particular environmental condition exceeds a predefined threshold. Commonly used sensors include temperature, humidity, and pressure sensors well-suited for example for creating a DIY weather station.
Analog sensors provide precise data values from the surroundings (with some rounding). Despite their digital output, they provide accurate data values, not binary values. Technically, sensors using I2C, SPI, or OneWire also fall into this category
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These are the main cathegories:
Temperature, humidity, and presure sensors are suitable, for example, for measuring water in a pool or for automated irrigation systems. Each sensor is based on different principles depending on the type.
Tip: If you are curious about which specific sensors might be suitable for your DIY weather station, check out our article.
Tip: If you want to monitor CO2 levels in the air, sensors like the CO2 MH-Z19B or MH-Z14 may come in handy. For more information, check out our article.
Motion sensors can be a part of many projects. Whether you're just a beginner in electronic design or need to refresh your knowledge, check out our article on how motion sensors work and how to connect them.
Liquid sensors will come in handy even if you don´t have a garden pool. These sensors measure various paramenters such as water level, pH, or water resistance. You'll find everything you need here for any irrigation, pool, or other water systems.
Tip: Do you need a lightning detector? You're in luck! We've written an amazing guide just for you on how to assemble a Franklin lightning detector on your own.
When measuring current, you'll often utilize Hall sensors. Did you know that the Hall sensor is named after the discoverer of the Hall effect, Edwin Hall? Discover more fascinating details in our article "Hall Sensor – Function, Principle, and Applications."
Do you want t feel like a doctor or detective? You're in the right place. With sensors from this category, you can measure heart rate or capture fingerprints. This will come in handy, for example, if you need to secure your project. You can try a fingerprint scanner or this heart rate monitor.
