With just a Wemos D1 Mini, a standard PIR sensor, and some open source code, you can create a practical self-contained motion sensor module that can be placed anywhere you want to keep an eye on.

Previously Arduino Cloud allowed the creation of devices based on Arduino or ESP32/ESP8266 hardware, with automatic sketch creation in C/C++ using the Arduino IoT Cloud library.

Using the Arduino Oplá IoT Kit and Arduino Cloud, Robert has created an Internet of Things room condition monitor capable of providing feedback on a number of different data points as well as ...