Course on Internet of Things

Exercises Session 1:

Exercise 1:

Connect to your ESP32 with minicom or thonny.

Using REPL:

• print “Hello World!”

• read in a text using input() and print it

• Calculate

  

• Calculate sin(30°)
  If you see errors, how do you correct them? Are the results correct?

Exercise 2:

Write a script that assigns the values 5 and 3 to the variables a and b respectively

Print the results of 4 basic arithmetic operations:

• a+b

• a-b

• a*b

• a/b

Improve this program asking the user to enter 2 integers separated by a space. If this happens when the user mistypes and enters something that is not an integer can you capture the error and simply ask him to repeat his input until you get 2 correct integer numbers?

Bonus points: Writing a parser is quite easy if the numbers are separated. It is quite a bit more tricky if you allow entering calculations with spaces between the operands and the operator. Can you write a parser accomplishing this?

Exercise 1:

Connect to your ESP32 with minicom or thonny.

Using REPL:

• print “Hello World!”

• read in a text using input() and print it

• Calculate

• Calculate sin(30°)
  If you see errors, how do you correct them? Are the results correct?

Exercise 2:

Write a script that assigns the values 5 and 3 to the variables a and b respectively

Print the results of 4 basic arithmetic operations:

• a+b

• a-b

• a*b

• a/b

Improve this program asking the user to enter 2 integers separated by a space. What happens when the user mistypes and enters something that is not an integer?

Can you capture the error and simply ask him to repeat his input until you get 2 correct integer numbers?

Exercise 3:

Ask the user for 2 integer numbers. Check with one is bigger and print the result:

Running the program should result in output as shown below:

Exercise 3:

Ask the user for 2 integer numbers. Check with one is bigger and print the result:

Running the program should result in output as shown below:

-- Uli Raich - 2020-05-03

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