Description
Introduction
This module contains an ultrasonic sensor to detect the distance to an obstacle in front. It is usually used on robots to avoid obstacles. With the two holes, it can be installed easily on the robot. The sensor detects obstacles 0.79 inch-275.6 inch away, though it keeps stable signal output within 196.85 inch and the signals become weaker and weaker when it gets farther away from the obstacle beyond 196.85 inch.
There is power indicator light added onside to indicate power on/off. The 3-pin design makes it unique among most of the ultrasonic module in the market: the same pin to trigger and receive signals. The 3-pin anti-reverse cable included make the wiring tighter and more convenient. Also the beautiful cartoon design and the red PCB add to its fascination.
For more information, refer to http://wiki.sunfounder.cc/index.php?title=SF-SR02_Ultrasonic_Module
Note: Pin NSE is to burn firmware to the chip when it s manufactured and does not need to use later. If you hear some slight noise during the application, it s fine.
Compents list
1 * SF-SR02 Ultrasonic Module
1 * 4pin anti-reverse cable
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