Solutions

Self-check

Questions

  • Answer: 3.3 V
  • Answer: It is closer to 2.65 V because the transistors inside the microcontroller create some internal resistance causing a voltage drop under load.
  • Answer: “floating” the lead
  • Answer:  There is an increase in voltage.

 

Exercises

  • Answer: from multimeter import*
  • Answer: voltage
  • Answer: Pin 13 is set to both high and low through pin13.write_digital() with each followed by a measurement call.
     

Project

Solution: Make sure to change the pin in the script to 14. The reading should be approximately 2.95 V.