Day 3 of Mechatronics
Today we learned about the basic concept of what a switch , a relay and a capacitor can do as well as why that is. If my understanding is correct a relay is a coil with magnetically sensitive two way switch above that coil so that when there isn't a current running through the coil and one of the two ways of the switch is connected, electricity will flow through that particular circuit without a problem. However, if there in fact is a current running through the coil, the coil would act as a electromagnet (becomes magnetic only if there is a current running through it) which then results to the magnetic sensitive switch inside to relay electricity to the second way. A capacitor acts as a way to store energy then releases it which can be helpful to cause delay for the circuit we were assigned to do.
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| Figure 1. Our assigned set up incorporating our new-found lessons. |
| Our objective was to set up a circuit that initially has one of two LED lights on and when one pushes on a push switch it will cause the two LED's to switch in a pattern where one will be on when the other is off then vice versa. This was apparently difficult for me since I am still very new to electronics so there were things about the relays that many of us students were not aware of. Since the breadboards were set up in the fashion that they are, it had not occurred to us to place the relay so that no two sides of leads would not be in the same connected row or they will "short".
Squarebot:
After spending most of the class time on this set up, I spent the rest of my time constructing the "squarebot" to the point where mechanically it is completed and is fully powered and wired I just need to program it.
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| Figure 2. The construction of the chasis and motor installation of the square bot. |
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| Figure 3. A completed Squarebot with a "brain" and battery pack. |
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