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HC-SR04 ULTRASONIC SENSOR - WHAT it is and HOW to use it.

I'll explain the HC-SR04 Ultrasonic Sensor. They're great for for measuring distances and detecting objects This video is sponsored by PCBway. 👇 More info below 👇 A ultrasonic sensor / detector / measurer is a great little module, and they're cheap enough to keep several to hand for when you need it next. To follow along with the example project in the video you will need a few items, the links automatically redirect you to right item on your local Amazon site: ■ HC-SR04 Ultrasonic Sensor: https://geni.us/HC-SR04_Ultrasonic ■ Arduino Uno: https://geni.us/ArduinoUno ■ Jumper wires: https://geni.us/JumperWires These are some of my favorite tools I use and can recommend: ■ Battery-powered glue gun: http://geni.us/BoschBatteryGlueGun ■ Bosch Bit Driver: https://geni.us/Bosch-Screwdriver ========== CODE The code, wiring diagram and software instructions can be downloaded for free from here: https://www.diymachines.co.uk/hc-sr04... ========== SAY THANKS: Provide continual and dependable support through Patreon: Support us on Patreon:   / diymachines   Buy me a coffee to say thanks: https://ko-fi.com/diymachines SUBSCRIBE: ■    / @diymachines   INSTAGRAM: https://www.instagram.com/diy_machine... FACEBOOK:   / diymachines   ========== List of camera and lighting equipment I use: Sony A7 III: https://geni.us/Sony-Alpha7-III Tamron 28-75mm F2.8 RXD A036SF Lens for Sony-FE : https://geni.us/TamronRXD-28-75mm Aputure Amaran HR672C: https://geni.us/AputureAmaranHR672C Aputure MC: https://geni.us/FAPGL RØDE VideoMic Pro+: https://geni.us/RodeVideoMic-ProPlus Blue Snowball iCE: https://geni.us/BlueSnowball-iCE Philips Hue Lightstrip Plus: https://geni.us/PhilipsHue-LightStrip 00:00 Intro 00:28 What does it look like / Is it made of? 01:29 What can it be used for? 01:49 How does it work? 03:05 How to use it - Example circuit and code 04:11 Understanding the code 05:14 Explanation of 'pulseIn' function 06:37 When it might not work properly 09:34 Outtakes Disclaimer: This video is shared for demonstration purposes only.