PCBWay 3rd PCB Design Contest
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Design 1/4
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Usability 2/4
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Content 4/4

It will detect object from about 2ft away

& the beep sound will be change according to distance of object. If light is very low then the buzzer will beep once per second.

So it is possible to gauge the distance & Light condition by hearing different beep sound. 

It will also works in complete dark condition  

 You can make with it a smart gloves or you can install it on a regular blind stick.


Download Arduino code & more details from here

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Bill of materials used in this project

Resistor – 10K, 330E
1
IC 7805
1
Ceramic capacitor 22pf
2
Ceramic capacitor 0.1uf
1
Electrolytic capacitor – 47uf/63v
1
LED
2
5V Active Buzzer
1
LDR
1
4mm SPDT switch
1
16 MHZ Crystal
1
HC SR 04 Ultrasonic module
1
28 pin IC base
1
atmega328p
1
Terminal block
1
Female header pin
1
Mar 21,2020
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    VOTING 4 votes
    • jordanyte from UNITED STATES OF AMERICA
      Ben Jordan is a board level electronics and embedded systems design engineer. Always an avid tinkerer, Ben started with his first soldering iron at the age of 8, designing and etching his own PCBs soon after. Ben is an expert in EDA with Altium, Protel, CircuitMaker and CircuitStudio and has a Bachelor of Engineering (CompSys) Hon I. from the University of Southern Queensland, Australia. He is an IPC-CID+ certified PCB designer, and makes training videos for Altium Academy.
      • 5
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      7.00
    • www.cursoderobotica.com
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      6.50
    • Jorge from SPAIN
      maker. I like to build things, to understand how things work. Co-founder of Ripolab Hacklab, a non-profit organization to explain the culture maker
      • 6
        design
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      7.25
    • Emre KONCA from TURKEY
      I'm system engineer. https://www.youtube.com/ArduinoHaberTV
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      8.75