A solenoid lock is an electric actuator that converts electrical signals to motion. It is commonly found in electronically controlled doors and drawers. Using the solenoid lock with a microcontroller is easy and, if you’re a beginner, this project is just for you.
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When working with IoT, it’s often necessary to track a device’s location for monitoring. Global Positioning Service (GPS) remains the number 1 option for large-area tracking. This project will show you how you can use a GPS with an ESP32 and have the location plotted on Google Maps.
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This ESP32-powered project allows you to write messages to a MAX7219 LED matrix display using your smartphone. Scaled up, this can be used as a WiFi message board for schools or signages for businesses.
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For this article, I will show you how to use an ESP32 microcontroller as a magnetometer – a device that measures the direction and strength of a nearby magnet. In the absence of a nearby magnet, the device detects the Earth’s magnetic field. Hence, a compass is a type of …
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The ESP32 has become one of my favorite microcontrollers as it’s compact, relatively cheap, and contains 125% higher memory than an Arduino UNO.
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