HC-SR04 Ultrasonic Sensor Distance Measurement Module
It is used in distance measurement applications using the HC-SR04 ultrasonic sensor. You can view the distance of an object or obstacle on the 3-digit LED display. You can also retrieve its data via serial pins on the board.
NOTE: HC-SR04 Ultrasonic Sensor is not included.
Technical Specifications
- Built-in STM8S103 high-performance microprocessor
- Digital display
- Data can be output via serial port
- Effective measuring distance: 3cm - 400cm
- Measurement Unit: cm
- Largest error: about 1%
- Operating voltage: 5V
Interface Description:
VCC, GND: 5V power interface
2.54mm white socket: 5V power supply interface
TX: serial port pin
RX: serial port pin
NRST, SWIN: STM8 program download port
Instructions for use:
- Measuring distance, digital display and serial port
- For digital display use, directly plug the ultrasonic module and connect to 5V power supply
- Serial port output: TTL module to VCC, TX, RX, GND USB of the ultrasonic module 5V, RX, TX, GND, serial communication baud rate 9600
- Variable, the measured object area should not be less than 0.5 square meters, and should be as flat as possible and slightly stronger reflecting ability, otherwise it will affect the test results.
- Effective measuring distance is 3cm-400cm, data beyond this range is not allowed or may cause 000 displays.
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