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33% off
25% off
33% off
HC-SR04 Ultrasonic Sensor
200 299
This is the HC-SR04 ultrasonic distance 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.
25% off
IR Sensor module
75 100
IR Sensor module has great adaptive capability of the ambient
light, having a pair of infrared transmitter and the receiver tube, the
infrared emitting tube to emit a certain frequency, encounters an obstacle
detection direction (reflecting surface), infrared reflected back to the
receiver tube receiving, after a comparator circuit processing, the green LED
lights up, while the signal output will output digital signal (a low-level
signal), through the potentiometer knob to adjust the detection distance, the
effective distance range 2 - 10cm working voltage of 3.3V-5V. The detection
range of the sensor can be adjusted by the potentiometer, with little
interference, easy to assemble, easy to use features, can be widely used robot
obstacle avoidance, obstacle avoidance car assembly line count and
black-and-white line tracking and many other occasions.
