Ultrasonic distance sensor with different distances

Good morning friends!!

Today we present to you an electronic project consisting of an alarm that is activated when it detects an object less than 40 centimetres away.

The elements are:

• Arduino.
• Protoboard
• Cables
• Ultrasonic sensor
• Speaker

The operation is as follows:

When the sensor detects an object less than 40 cm away, it sends a HIGH signal to pin 2 of the Arduino, which we have programmed to send in that case a HIGH signal, through pin 3 that activates the speaker in order to sound the alarm.


This way the parking sensors work, also a Lunar Rover, could use it not to collide with rocks.


Click here to see the design