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The HC-SR04 Ultrasonic Distance Sensor is a sensor used for detecting the distance to an object using sonar. It’s ideal for any robotics projects your have which require you to avoid objects, by detecting how close they are you can steer away from them!

Digital temperature and humidity sensor

A simple 48×84 dot matrix display for your graphical projects.

Standard 16 character by 2 line display with common  HD44780 parallel interface chipset for your standalone project

This is a 20×4 character display, 20 characters wide, 4 rows, white text on blue background

Joystick Module can measure position coordinates on the X and Y axis by moving the “hat”. Similar to what is used in the PS2, XBOX controller.

PIR sensors allow you to sense motion.They are mostly used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don’t wear out.