Echolocation with Arduino

This is a result of the 2016 Connect XMAS Hackathon at Zühlke Eschborn. We built an echolocation device using Arduino, a servo and some sensors. The Arduino is hooked up to the us-sensors, a servo motor and optionally a neopixel LED-ring to visualize the measured distances in blinky-blinky hardware. The Arduino can be connected to other devices (like a RaspberryPi) over the serial interface. A connected device will then receive JSON-data linewise of the form

{'measurements': [{'distance': 1002, 'angle': 135}, {'distance': 674, 'angle': 315}]}
{'measurements': [{'distance': 637, 'angle': 120}, {'distance': 97, 'angle': 300}]}
{'measurements': [{'distance': 201, 'angle': 105}, {'distance': 77, 'angle': 285}]}

with distances in cm and angles in degree.

This repository contains

• an Arduino-Sketch to build a radar-lke echolocation device with Arduino-compatible microcontrollers, two hcsr04-sensors and a (rc) servo motor
• a PyQt-widget to visualize distances on the various angles covered by the servo motor
• CAD-Data to print a mount for the two ultrasonic-sensors

Hooking it up

TODO wire scheme, video

Running it on a Mac

• Hook up the hardware as "described" above.
• Connect the Arduino to your computer (USB)
• Make sure your drivers are installed and the device is available (Arduino IDE/terminal ...)
• Check the EcholocationVisualization's README.md on how to start the Qt-Gui.
• Have fun