Week 6 Notes

February 13th Class Notes

TCI - multifunction tester

• tests components and tells what it is
• tells with leg is positive or negative

Flipper Zero - multitool for hackers

Lab Questions

• arduino can send information faster than the computer can recieve
  • can lead to lag from buildup of input
  • change code in p5 to have it ask for information instead of arduino contstantly sending
• When code is not working….
  • add console.log to see where the problem could be
  • check serial monitor to see if data is being sent

Arduino Code

• const int - variable that will never change
• serial.begin(bod rate) - sets up serial communication
• pinmode(pin#,mode) - sets input or output mode of a pin
• while - keep doing code until criteria is not met

  • while (

    ) or while(TRUE) - loop forever

• serial.available - something was sent to arduino
• serial.print(“ “) - print value
• serial.println(“ “) -print value with the return after

Github Copilot - not useful for us right now, you write a comment of what you want the code to do and it will write the code for you Arduino is not capable of concurrency

P5JS Code

IncomingSerialData[#] - reads data after it has been converted to a list, # is the place in list starting at 0, you need to know which value corresponds to which input

• example: joystick - x = 0 / y = 1 / button = 2

Adding other Languages to Markdown

use
‘’’ language
code
‘’’

mermaid language allows creation of diagrams and charts

• mermaind notation

will need a mermaid preview extension –> Markdown Preview Mermaid Support

Multimeter Functions

• continuity test - sees if two points are electronically connected
• diode - can work continuity test
• check voltage
• check ohms
• check current
  • need current to flow through multimeter
  • 

7805 - voltage regulator, has a limit to how much it can disipate

• 

benchtop power supply - can change voltage and current, tells current on screen

inductive load - electromagnet, motor, speaker

• dont want direct communication to arduino, draws too much power

LM386 - low voltage audio power amplifier
HiLetGo - amazon components

February 15th Class Notes

ultrasonic sensor tip - to avoid outlier outputs, can tell to ingore outputs that are drastically different than previous output

for electronic parts:

• allelectronics
• American Science and Surplus

DIP - dual inline pin
the chips on our boards are in a socket, not soldered directly to the board

Soldering Tips:

• do not use acid core solder
• ~325 degrees - suggested start temperature
• use leaded solder
  • leadfree solder is used for machine soldering, not hand soldering and requires a higher temperature (~400-450 degrees)
  • when using leaded solder, use a fan with a charcoal filter
  • throughhole components should be soldered from the back of the board
  • reflow - reheating solder on the board to get it to flow again to clean up and stabilize connections

Tin Whiskers
Rory Sparks

Midterm Notes

particle systems - maybe smoke or sparks ?
api - application programming interface, systems talking to eachother