Week 6 - Journal

Tinkercad used to design and simulate my electronic circuit.

Code Braking Down

The code start by defining a variable called "distance" and then set that "distance" variable to the Ultrasonic reading value.

Print the value of "distance" in the serial monitor for debugging and read the real time reading of the Ultrasonic sensor.

then by using "if condition" it check if the value of the "distance" variable between 20 CM and 15 CM it sets pin D2 to HIGH which turns on the Green LED and fire up the buzzer which is connected to pin D11 with high delay between every buzz

and then using "if condition" it check if the value of the "distance" variable between 15 CM and 10 CM it sets pin D3 to HIGH which turns on the Yellow LED and fire up the buzzer which is connected to pin D11 with medium delay between every buzz

and then using "if condition" it check if the value of the "distance" variable between 10 CM and 5 CM it sets pin D4 to HIGH which turns on the Red LED and fire up the buzzer which is connected to pin D11 with small delay between every buzz

Other than those 3 conditions all the pins will set to LOW

Full Code

The relay module can be powered with range of 5-24 V DC

and can handle up 250 V AC 🤯