After the first introduction to basic electronic circuits, the assignment was to create a simple switch for a LED circuit.
Starting the assignment, I began with creating a basic switch circuit with a push-button.
As this was done, I started to research about different conductive materials. I was drinking some water, when I remember that when (iodized) salt is added to water, the ions break apart and make the salt+water mixture conductive. I thereafter looked throw many videos and examples of how to build a basic circuit using saltwater.
After research, I concluded a basic circuit needed to light up an LED with the use of saltwater.
As I was trying to come up with an idea for how to use this circuit in a simple but a bit more interactive way, I was drinking some orange juice form a little plastic bottle and with a straw. That is when I realized that I could create a circuit that lights up an LED when bubbles are blown into the salt water. The straw was plastic, which means no electricity is led to my body, hopefully.
I gathered all the necessary parts for the circuit.
And I assembled the parts. I used extra pieces of copper wire to create the circuit – the red and black long wires. Both of the ends went into the saltwater. The other end of the red long wire, was connected to the positive (+) leg of the LED and the black wire connected the 5V power and the saltwater. I taped both of the wires to the plastic bottle, making sure that these are not touching the water.
Going on, I had to adjust the water level to make sure that the bubbles will reach the wires
Here is the final result.