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Documentation 01




//Labs Setting up a breadboard

I set up the breadboard instead of using the Arduino Nano 33 IoT. I orignally tried to power the breadboard using the DC power supply power jack and but noticed I don’t have a DC power supply by hand. So I decided to use the computer as the power source connecting to the arduino as an alternative.


fig 1. Setting up a breadboard 


fig 1a. trying to set up the breadboard with a DC power jack but didn’t have a DC power supply

//LEDs

Here I started with build the circut to supply the LED light. Spent a little long time trying to know what the resistor do in the circut but finally understood that it reduce the current and limit the voltage from the power supply and pass it to the LED light.

fig 2. build the circut to supply the LED light


//Electronics and Using the Multimeter

 

fig 3. Check the continuity of the multimeter


fig 4. Measuring resistance of a resistor


fig 5. Measuring resistance across my hand


fig 6. Measuring voltage across an LED

// A Switched LED circuit


At first the switch did not work and I noticed this might be because the LED light’s leg is not tightly connected to the breadboard and the previous LED’s leg is too distorted. Therefore, I replaced the LED and it worked.

fig 7. adding a switch to the circuit


video 1. showing how the switch worked

//Adding Up Voltage




fig 8. adding one more light to the circuit


video 2. turning on and off the switch

I noticed that only one of the LED light up. But since the latter one lights up, the first one should be working, so I looked closer to the circuit and noticed that the first one is working only with a very dim light. So I understand it may be because the LEDs sharing the current and voltage which makes one of them appear to be dimmer. 


video 3. close up look of the LEDs


fig 9. Using the potentiometer to controll the LED


video 4. Using the potentiometer to controll the LED



//Switches



Project 1. Switches in Parallel
turning on either of the switch could turn on the LED

Project 2. Switches in series
have to press all three of the switches to turn on the LED because they are connected in series

Project 3. Switching a motor


//Create my own switch


Final: I covered the LED light with a origami rabbit and use the lipstick switch to controll the light and the motor.


video 5. final

Process:
I started with doing some simple tests.

Test 1: I started with building a very simple circuit with only one LED light. I disconnected the part between the resistor and the LED light and make the in-between section a very simple switch using the copper tape. Via using my hand to connect/disconnect the copper tape, I built a very simple switch only to test whether I understand the concept clearly.


video 6. A test

Test 2: Then I continued with adding more components to the breadboard. Here I put the LED light and the motor in parallele while disconnect the part from the arduino power to the breadboard power to add a switch in between. This video down below is another test I tried with using hand to control the switch.
video 7. test 2 (LED and motor in parallel with a switch between the microcontroller power and the breadboard power)

lipstick switch: I further build up the circuit by replacing my hands as switch to using a lipstick as the switch.
video 8. lipstick switch


video 9. using a manikin’s hands as a switch