The purpose of this project is to create a pocket-sized tool for measuring distance from objects. We are going to need an ultrasonic ranging module to get the distance between our tool and the target-object.
Pushing a button connected to the ProTrinket will trigger the sensor and then the distance from the object will be displayed on the LCD screen.
We would also like to create a 3D-printed case for our tool and make it look cool!!!
Components
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ProTrinket
Adafruit's ProTrinket with atmega328 microprocessor
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Ultrasonic ranging module
Started with Sharp's 2D120X IR sensor, but switched to an ultrasonic sensor with bigger range (HC-SR04)
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PushButton
4x-pin pushbutton
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LCD display with I2C
I2C compatible lcd display