Recitation 1 – Electronics & Documentation

 

Circuit1

 

Breadboard – Holds and connects all other components of the circuit.

12 volt Power Supply – Converts the 220v output from the wall into 12v.

Push-Button Switch – Mechanical button that completes the connection to allow electricity to flow.

LM7805 Voltage Regulator – Converts a 12v input to a consistent 5v output

100 nF (0.1uF) Capacitor – Contributes to charge and voltage regulation

Buzzer – Accepts 5v and makes a sound

Barrel Jack Jumper Cables (Hook-up Wires) – used to connect all other components of the circuit

 

Circuit2

 

Breadboard – Holds and connects all other components of the circuit.

12 volt Power Supply – Converts the 220v output from the wall into 12v.

Push-Button Switch – Mechanical button that completes the connection to allow electricity to flow.

LM7805 Voltage Regulator – Converts a 12v input to a consistent 5v output

100 nF (0.1uF) Capacitor – Contributes to charge and voltage regulation

220 ohm Resistor – Lowers the 5v output from the voltage regulator into 3v for the LED

LED – Light diode that accepts 3v and lights up

Barrel Jack Jumper Cables (Hook-up Wires) – used to connect all other components of the circuit

Circuit3

Breadboard – Holds and connects all other components of the circuit.

12 volt Power Supply – Converts the 220v output from the wall into 12v.

Push-Button Switch – Mechanical button that completes the connection to allow electricity to flow.

LM7805 Voltage Regulator – Converts a 12v input to a consistent 5v output

100 nF (0.1uF) Capacitor – Contributes to charge and voltage regulation

Barrel Jack Jumper Cables (Hook-up Wires) – used to connect all other components of the circuit

220 ohm Resistor – Lowers the 5v output from the voltage regulator into 3v for the LED

LED – Light diode that accepts 3v and lights up

10K ohm Variable Resistor (Potentiometer) – A knob to control the amount of voltage/power sent to the LED, which controls it’s brightness

Process:

We followed the circuit diagram and plugged it in together correctly. The power supply was connected to the 220v wall socket, and converted it into 12v output. The voltage regulator + capacitor component of the circuit converted the 12v output into a consistent 5v output, which was used as-is for the buzzer. Alternatively, it was converted further into 3v with the 220 ohm resistor for the LED, as an LED only takes 3vs. Adding the potentiometer in the path allowed for variable resistance of the power to the LED, which allows adjustment of it’s brightness.

 

Reflection:
The circuits worked correctly on the first try.

 

Question 1

The reading defines Interaction as “a cyclic process in which two actors alternatively listen, think, and speak.”

Therefore, the circuits we built today are interactive. If the user is an actor and the circuit is another actor, the two actors alternatively listen, think, and speak. The user commands the circuit, such as by pressing the button or twisting the potentiometer, and the circuit responds – either with a light or with a speaker tone. Subsequently, the user can react to the tone and respond accordingly. With the first or second circuit, they can release the button to turn off the light. Additionally, with the last circuit, they can adjust the brightness of the light if it’s too uncomfortably bright.

Question 2

Actuators:

  • Speakers
  • LED

Sensors:

  • Potentiometer
  • Switch

Question 3

Arduino is an open-source platform for easily developing electronic devices. This allows us to rapidly create and prototype various forms of interactivity in a cheap manner. By being open source, it allows a community to form for modding it into their various creative endeavors. Sensors and actuators are easily connected using Arduino as it provides a standard interface for programmatically controlling them. These sensors and actuators allow us to implement interactivity by interfacing with the world.

One thought on “Recitation 1 – Electronics & Documentation

  1. Hi Kent,
    same thing I commented in your other post, make sure you convert your videos to MP4, since it is better to have them embedded rather than linked. You can use this web:
    https://www.online-convert.com/

    In regard to your answer about interaction, I’d encourage you to think a bit deeply about it. Maybe reflect more about the quality of interaction or “high”
    and “low” interactivity, as it is mentioned in the readings, and apply this to your stupid pet trick project.

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