Difference: SolutionsToTheExerciseOnSwitches (2 vs. 3)

Revision 32021-01-27 - UliRaich

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META TOPICPARENT	name="Solutions"

Solutions to the Exercise 3: Switches

Exercise 1:

This is very similar to switching a LED on or off. Again a single GPIO line is used. This time however the pin in programmed as input and we can add a pullup or pulldown resistor:

Changed:

<
<

_PB_PIN = 17
pushButton = Pin(_PB_PIN,Pin.IN,Pin.PULL_UP)

>
>

_PB_PIN = 22
pushButton = Pin(_PB_PIN,Pin.IN,Pin.PULL_UP)

Once the pushButton pin is defined we can get its current state with:

Added:

>
>

state = pushButton.value()

https://afnog.iotworkshop.africa/pub/IoT_Course_English/SolutionsToTheExerciseOnSwitches/pbPoll.py.txt

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