This is the HC-SR04 ultrasonic ranging sensor. 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 four pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground). You will find this sensor very easy to set up and use for your next range-finding project!
How can you use this product
Ultrasonic Sensor HC-SR04 and Arduino Tutorial
Arduino Robot Project: A DIY obstacle avoiding robot using an SG90 servo.
CODE OF THE PROJECT ——————– http://educ8s.tv/arduino-robot-easy-d…
hc-sr04 arduino library,
ultrasonic sensor hc-sr04 working
hc-sr04 raspberry pi,
hc sr04 working principle,
ultrasonic sensor hc-sr04 wiki,
sonar sensor hc sr04,
ir sensor price in bd,
pir sensor price in bangladesh,
pressure sensor price in bangladesh,
arduino nano price in bangladesh,
sensor bd tk,