Week 6- Journal

First, I started designing the circuit by getting an Arduino, an ultrasonic sensor, and a servo motor. I began by connecting the ultrasonic sensor to the Arduino: I connected its VCC (positive) pin to the Arduino's 5V, the GND (negative) pin to the Arduino's ground, the Trig pin to digital pin 10, and the Echo pin to digital pin 11. 

Then, I connected the servo motor: the positive (VCC) wire to the Arduino's 5V, the negative (GND) wire to the Arduino's ground, and the signal (SIG) wire to digital pin 9 on the Arduino. 

After that, I started writing the code. I created an if condition so that when the ultrasonic sensor reads a distance < 30 cm, the servo motor moves to a 180-degree angle for 3 seconds. If the condition is not met, the servo moves back to a 0-degree angle.