Ultrasonic Module with RGB Light Distance Sensor Compatible HC-SR04 obstacle avoidance sensor for Arduino Smart Car Robot. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit. There are only 6 pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo (Receive), RGB, In pin and GND (Ground). The basic principle of work
Features:
Operating Voltage: 3.5V-5.5V
Note: Not allowed to exceed 5.5V
Resonant Frequency: 40KHz; 4
Work Temperature Range: -40℃-100℃
Induction Angle Less then 15 Degrees
Interface Support PH2.0mm-4pin and 2.54mm Pin
Detection range:2cm-4 M (error within 0.2cm)
Dimension: 46mm**21mm*20mm
