Issues

- When I plug LED in horizontal way, it does not work.

- Remember to notice the push button polarity. When a push button is plugged in the middle of the breadboard, the horizontal pin is connected and they're are the same polarity while the vertically opposing pin is its opposite polarity.

- On analog sensors: it seems the number that was read out by the Arduino only works when the cable is not connected to the Ground. When I connected the analog sensor to ground, the result will be capped at around 20. Also, these numbers are probably noise.

- For the analog sensor issue above, the solution is to either use the 3.3V or if you want to use 5V, do solder the 2 squares behind the Arduino for the connection to work.

The forced sensor works now after changing the power source to 3.3V

- Other important notes that could cause issues are to always close the Serial Monitor when uploading program to Arduino.

- If your circuit is using digital input, you need to define the input and output on setup, but for analog input, you define it in loop.


Lab

The schematics for switch that could turn on the LED alternatively

Incorrect result, the LEDs are not supposed to both light up without the switch being pressed on. That is because the switch has not been connected to the LEDs.

Wrong schematics causes incorrect result in the switch control. Lights lit up randomly!

Correct schematics with intended behavior: each LED lights up alternatingly as I press the switch button.

Analog input tryout with Potentiometer

Connecting this week knowledge with other class' project:

Similar to last week, i'm still connecting this week's PComp Lab to Shared Minds project. Last week for PComp, I programmed digital output of the LED to "HIGH" when it receives the "BLINK" command from the Shared Minds Blinking web app. For this week, I'm replacing the LED with a buzzer, which makes sound when user blinks. Additionally, user can also change the frequency when they touch the force sensor.

Performative Break ☕️🤿

School workload is indeed quiet heavy this semester. I'm mastering life work balance as we speak.

Stream of thoughts
Natural x Intuitive -> they are not the same!

Technology is training us humans to be a user and not a thinker.
Phone is a danger to physical computing as it is very general. Out of curiosity, does this apply to humans too? When we use invisible technology, we become a users that are able to operate multitude of things but we don't understand any of them. Jack of all trades, master of none.

The invisibility of technology reminds me of the 'gen z stares'

Ampere is an attribute of a whole circuit, not just a component.

Scott Snibe - Blow Up (2005)

Hierarchy of how technology has evolved (according to me)

Wires -> Tactile Interfaces -> Invisible Interface

I find it interesting that invisibility is a mystery to us, but wiring is also a mystery.