Arduino with HC-SR04 (Ultrasonic Sensor) | Full Tutorial

HC-SR04 Ultrasonic Distance Sensor and Arduino (Lesson #9)

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This simple measuring tape hack helps you work faster and more accurately by combining measuring and marking into one step. By placing a pencil against the tape's metal hook, the tip lines up exactly with the measurement point, so you can mark without moving or retracting the tape. This reduces small shifts that can cause errors and keeps your measurements precise. It's a practical trick often used in DIY and carpentry to make everyday tasks smoother and more efficient. Love Innovation? Follow @

The last tape measure you ever buy - replace a broken blade in 5 minutes or less

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