Book 2 chapter 3

Question 1

What does a pull up resistor look like

Answer 1

DRAW IT

Question 2

What does a pull up resistor output when the switch isn’t pressed

Answer 2

It outputs 1

Question 3

What does a pull up resistor output when the switch is pressed

Answer 3

It outputs 0

Question 4

What does a pull down resistor look like

Answer 4

DRAW IT

Question 5

What does a pull down resistor output when the switch isn’t pressed

Answer 5

It outputs 0

Question 6

What does a pull down resistor output when the switch is pressed

Answer 6

It outputs 1

Question 6

What does a schmitt inverter do

Answer 6

Schmitt inverters convert an analogue signal into a digital signal.

Question 7

How do you debounce a switch without a schmidt inverter

Answer 7

Place a capacitor in parallel with the switch and have a schmitt inverter

Question 8

How do you debounce a switch

Answer 8

The capacitor is placed in parallel with the switch and the switch is placed at the bottom of the resistor because the schmitt inverter inverts it and then the capacitor is placed in parallel with the switch.