Arduino HC-SR04 Ultrasonic Range Finder

Arduino HC-SR04 Ultrasonic Range Finder

I recently purchased the Arduino¬†HC-SR04 Ultrasonic Range Finder. You can purchase this item for around ¬£5 and you can use it to calculate the distance from the range finder with an accuracy of 2-400 cm. Although fuzzy in the picture the pins are labelled as such. I have also included instructions on how you can …

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