Calculating on paper is never an easy job. And when it comes to formulas with sub-formulas of their own, it is nothing short of a nightmare! Take the case of a simple pendulum, which has a variable with a formula of its own.
You guessed it right! With the help of evive, an IR sensor, a computer program, and little DIYing, you can easily find out the time period of the pendulum in a matter of seconds! So, what are you waiting for?
Let’s get into it right away!
Step 1: Things You’ll Need:
- IR Sensor
- Thick Cardboard
- M3 bolts of length 20 mm X 7
- M3 bolts of length 08 mm X 1
- M3 nuts X 8
- Male to Female Jumper Cables
You can also buy the evive Starter Kit , as the above components and even more, are found in it. Also. there are lots of projects listed on Instructables which are made with the help of it.
Step 2: Cutting the Layout
Step 3: Attaching the Sensor Holder Plate
Step 4: Completing the Frame
- Take the piece of size 162 x 150 mm and attach it to the base using M3 bolts of 20 mm and M3 nuts.
- Similarly, take the other piece of the same size and fix it using M3 nuts and bolts to the base.
- Now, take the last Acrylic piece of size 34 x 75 mm and attach it between the gaps of the two large pieces using M3 nuts and bolts. On this plate, we will be attaching the bob of the pendulum.
The base assembly is ready. All we need to attach is the Sensor and the bob which is a small weight attached to the string at its end.
Step 5: Attaching the Sensor
Step 6: Pendulum’s Bob
Now, the free end of the string is passed through the hole on the upper horizontal piece and its length is thus adjusted according to the height required.
Make sure that the pendulum always remains in the same line as that of the sensor’s LEDs.
Now, the assembly of the simple pendulum is thus complete.
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Step 7: Circuitry
- GND to GND of evive
- VCC to +5V
- OUT to Digital Pin 2