Week 1

Question 1

Formulas

Answer 1

P = V * I
P = I^2 * R

Question 2

Microcontrollers

Answer 2

• Microcontrollers can handle I/O and have memory
• Controlled by code
• Reduce need for complex electronics

Question 3

What is serial communication used for

Answer 3

Debugging
• Reading the state of your code
• Measuring inputs
• Measuring voltage
• Showing voltage change over time (oscilloscope)

Question 4

Disadvantages serial communication

Answer 4

Remember that Serial communication is slow and blocking
• Debug lines influence your code execution

Question 5

Digital/analog pins

Answer 5

Digital pins can output/sense either ‘on’ or ‘off’
* Analog pins can work with analog values by sensing voltages, but
can only sense

Question 6

digital pins

Answer 6

oV or 5v

3 I/O modes:
output
input
and pullup

Question 7

positive and neative pole

Answer 7

Flat side/short leg = negative
round/long leg = positive

Question 8

PWM

Answer 8

marked with a dash, particular mode of output, creates a pattern of low and high output. Seems to be analog

Question 9

analog pins