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48% off HC-SR04 Ultrasonic Distance Alarm DIY Kit Soldering Project US$7.79 (~A$12.12) + US$3 (~A$4.66) Shipping @ ICStation

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What is it?
A hands-on soldering kit that builds into a functional ultrasonic distance measurer (0-270cm range) with real-time digital display, LED visual alerts, and adjustable buzzer alarm (triggers at customizable distances).

Features:
✅ Adjustable warning distance
✅ Learn while building: Clearly labeled PCB with Paper Manual in English for soldering
✅ HC-SR04 sensor – great for robotics/STEM

Ideal for makers, students & tinkerers.
👉 Deal link:
https://www.icstation.com/ultrasonic-ranging-alarm-sr04-ultr…
Free Shipping for Order Over US$20~A$31.1

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Comments

  • +2

    Handy for those that can't park their car…..

    • I have a similar kit hooked up to the reverse lights power in my fathers car; It only beeps at the last 15cm or so of room.

      He can drive, but since it's a long classic american car, getting within 10cm of a wall is the only way to not be an ass, and stick out into the lane, at shopping centres.

      • Can you share a link to the one you used? Seems like a useful DIY project!

  • What does the kit include?
    Do we need to buy the soldering gun and any other item

    • It is all the components but not the tools. In terms of how useful the end product is, for the money it's worth it but the value is definitely in the educational aspect as prebuilt consumer products are 10x better for maybe 5x the price.

  • -1

    Good to be used as a pest deterrent?

    • +2

      Guess you could set it up to start making noise when your kids get near…(like the scanner in the Aliens movies).
      Game over man….game over!

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