Supply voltage: DC 4.5-5V
Universal board size: 7*9cm
Function introduction:
Use the ultrasonic module to measure the distance of the obstacle in front of the surface, send it to the MCU and then use the digital tube to display the actual distance measured. A set of alarm distances can be set. When the measured actual distance is less than the alarm distance, the buzzer sounds and the light is on.
Hardware composition:
MCU + minimum system + digital tube display module + HC-SR04 ultrasonic ranging module + sound and light alarm module + button module
Features:
1. This design uses STC89C52RC microcontroller as the main controller;
2. The alarm distance can be set. When the measured distance is less than the set distance, the sound and light alarm will be given.
3. Measurement range: 2cm - 4.5m, accuracy 1cm.
4. This design can be used as a parking sensor for automobiles.
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The purchase of parts from the self-welding friends noticed that the universal board kit does not solder the components like the PCB board kit. This requires you to plan the placement of the components and the wiring, which is very capable of exercising the welding ability. The basis of welding (read the schematic), such as the parents who are not sure about themselves, please consider.