Proximity sensor

pinshape

Hi again! Here is the new design for "Envision The Future Design Challenge". In this case, I've designed a proximity sensor to help blind people. It's also a fun ghost similar to Pacman's ghost. To make it work, we'll need electronic devices like an ultrasonic sensor and an Arduino Nano. All the materials cost around 30€. The sensor detects the distance between us and an object - for example, a wall. With the help of a buzzer, we hear tones with a frequency that's proportional to the distance. Closer objects produce faster frequencies. Features: - It's useful for detecting objects, which can be used daily to help blind people or as a way to learn about distances, like steps. - It has two supports on the back, making it easy to attach to your belt. - The device can be configured to suit your needs, changing the distance, frequency, or tone. - The case for the battery is available for button batteries or 4xAAA batteries. I recommend using at least 500mA and 5V. Construction: - You'll need wires, an Arduino Nano, a buzzer, an HC-SR04 sensor, and optionally a switch to turn it off and on. - First, insert the program into the Arduino Nano. There are plenty of videos on YouTube explaining the code; I've included the code I used. - Next, plug in all the devices. The buzzer will be the last one to connect. *I'll attach an schematic later. - Insert the components into the Phantom case: first, the HC-SR04 sensor, then the battery and switch, and finally the Arduino and buzzer. I hope this new device will be useful for you! Thank you for your attention!