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HC-05 Bluetooth Module compatible with Arduino
RM30.00This is the popular Bluetooth module, HC05 which can be configured as master or slave.
- Master Bluetooth will be able to search for other Bluetooth devices and initiate a connection.
- Slave Bluetooth cannot search for other Bluetooth devices and can wait for the master to initiate a connection and accept the connection.
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HC-SR04 Ultrasonic Distance Range Finder Sensor for Arduino
RM5.00DescriptionIf you’ve been searching for distance measurement and object detection sensors at a rock-bottom price, look no further! This legendary HC-SR04 ultrasonic sensor is your perfect choice. It offers excellent range accuracy and fairly stable readings at a very low cost. It requires two digital I/O pins (an output pin and an input pin) to interface with it.
An ultrasonic sensor is created based on the principle of echolocation used by animals like bats and dolphins. Since the ultrasonic sensor uses sonar to determine the distance to an object, its operation is not affected by sunlight, spotlight, and object’s surface color which will affect the readings of any infrared distance sensors. However acoustically soft materials such as clothes can be difficult to detect.
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