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Keypads interfacing with Arduino
Keypads are a great way to let users interact with your project. You can use them to navigate menus, enter passwords, and control games and robots. In this tutorial, we... -
Ultrasonic sensor interfacing with output display on 8x32 LED Matrix
The HCSR04 ultrasonic sensor can sense the distance between itself and the object in front of it. It uses the formula d=(v*t)/2 to calculate the distance. We can display the... -
Analog IR Distance Sensor
In this tutorial, we will learn how to use the Analog IR Distance Sensor with a simple example. We are using the GP2Y0A21YK0F optical sensor which is extremely useful in detecting very... -
PIR Person Detector
The right potentiometer controls sensitivity and the left potentiometer controls the timeout.
Here, we set both the sensitivity and timeout at their lowest (anti-clockwise). It is advised to keep the timeout as low as possible and just change the sensitivity depending on the range required.