What Is Difference Between IR Sensor and Ultrasonic Sensor?

About: Since 1998 Shenzhen Grande Electronics Co., Ltd has been providing PCB Layout, PCB Fabrication, Components Procurement ,PCB Assembly and IC Decoding.

The difference between IR sensor and ultrasonic sensor:

IR sensor, Infra-Red sensor, whose circuit is simple; However, it is heavily influenced by light and ranging unavailable;

Ultrasonic sensor: Stable, ranging available and little influenced by light; However, it’s expensive and it’s impossible to use wildely due to its price;

BTW, generally, the ultrasonic module ranging is as far as 4-5 meters.

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