Introduction: Ultrasonic Measuring Tape
In this Instructables I will show you how to make ultrasonic measuring tape using very few components such as 16 x 2 LCD, HC SR04 ultrasonic sensor and an Arduino Uno.
This is not supposed to replace accurate measuring tools this is just a fun arduino project that you can easily make at home or at a local makerspace.
Step 1: Wire the LCD
Wire the LCD like in the picture:
Step 2: Wire Ultrasonic Sensor
Wire the ultrasonic sensor's trigger pin to pin 6 on the arduino, the echo pin goes to digital pin 7 and vcc goes to 5 volts or probably even 3.3 volts. Then the grd pin goes to any ground pin on the arduino or on the ground rail on the breadboard if you connected it to ground.
Step 3: Download NewPing Library
Download the newping library: https://code.google.com/p/arduino-new-ping/
Drag the folder into the libraries folder by going: Documents --> Arduino --> and libraries. After that change the name to "Newping"
Step 4: Upload the Code
Upload this code to your arduino board:
Step 5: Finished
You have completed this instructable!
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