Sure! To build a motion sensor that alerts you over Wi-Fi using an Arduino board, you will need a few components: an Arduino board, a motion sensor (such as a PIR sensor), a Wi-Fi module (such as the ESP8266), and some jumper wires to connect everything together.

First, connect the motion sensor to the Arduino board according to the sensor’s datasheet. Then, connect the Wi-Fi module to the Arduino board according to the module’s datasheet. Make sure to use the correct voltage levels for each component.

Next, you will need to program the Arduino board to read data from the motion sensor and send an alert over Wi-Fi when motion is detected. This can be done using the Arduino IDE and uploading code to the board via USB.

In your code, you will need to include libraries for both the motion sensor and the Wi-Fi module. You will also need to set up the Wi-Fi connection by providing your network’s SSID and password.

Once everything is set up and programmed correctly, your motion sensor should be able to detect motion and send an alert over Wi-Fi. You can customize the alert to be sent to your phone or computer, or even trigger another action such as turning on a light or sounding an alarm.
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