Week #6 - Journal

First, i used tinker cad to design and test my circuit and make sure everything works fine before assembly. Then i used an Arduino uno board, a breadboard, a microwave motion detection sensor (RCWL-0516), a LED bulb and a 220 ohm resistor. Since the microwave sensor is not available on tinker cad, i used an infrared sensor instead which works in a similar fashion for design and testing purposes.

Using tinker cad i connect the IR sensor to the the Arduino (out pin) and to the power source and ground coming from the Arduino board too. The Led bulb was also connected to the Arduino board with a 220ohm resistor. Using the coding option in tinker cad, i set up the Led bulb to light up in 0.25 seconds interval when the sensor detects any motion. After a successful simulation i attempted to build the real circuit using the above mentioned components. Then connecting the Arduino board to the computer and uploading the new code using Arduino software.

Using the breadboard, i connected the microwave sensor and the led lamp to the arduino board. The led lamp was also connected to a 220 ohm resistor at its cathode end. With the proper code written and uploaded to the Arduino uno board, the device now functions as intended. If anything move around the sensor, the led light blinks a few times and thus acting like a silent alarm.

Implementation

The challenge was to come up with an idea that was not explained in the videos. But all it took was looking around my everyday life i found this idea to be the most entertaining for me to make.

The other challenge was wrinting the code using the code blocks, but the video tutorials helped alot.

otherwise this was a relatively simple project with no major challenges.

Here is a short video of the smart device in a action.