Transparent adhesive tape
Let’s prepare the basketball backboard first. Cut a piece of cardboard or hard paper sheet. Would be great to have a thickness to be at least 2 mm to make it sturdy. The dimensions are provided in the image here.
Pierce the backboard at three places as mentioned in the image above. These are the insertion points of your hoop and IR LEDs. Observe the dimensions carefully.
You can use the compass to make the first hole and then a pencil to pierce a broader hole further.
Now is the time to make the hoop. Draw two circles and a connection strip as provided in the image. And then cut the inner disc out. That makes your hoop.
Get a paper straw and cut the piece of length 2.4 cm out of it.
Insert the disc strip into this straw piece.
Your straw diameter, disc width, and hole diameter in the backboard must match with each other to keep the grip well.
Get a project paper sheet and do all the folds as provided in the image. Observe the measurements well.
Interlock the paper folds and it prepares a box. This serves as the stand/ base. Pierce into the middle of it using a compass and pencil so the pole fits well into it.
TIP: You can use a readymade box as well to avoid this step.
A paper straw is your pole. Stick the straw using adhesive tape at the back of the board. The other end of the straw goes into the hole of the base.
Now is the time to prepare the circuit as shown here.
Tune in the IR so it detects the object at around 1.5 to 2 inches.
Fix the LEDs into the holes of the backboard. They should fit well and won’t need any adhesive to remain there.
Your smart basketball system with hoop, backboard, pole, and base is ready to play with. Use a small lightweight ball if you have or make a paper ball and start playing.
Every time the ball passes through the hope, the buzzer will make the sound.
How does it work?
IR sensor element detects Ball as an object and passes the YES signal to the buzzer element. To understand it better, checkout how IR element works.
Advantages when implemented in the real world.
The same circuit can be used along with a real-sized basketball hoop. Every goal makes the buzzer sound and brings cheers and excitement amongst the players. This also marks an “audio proof” of the goal.
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