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Solutions to the exercises |
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- if argv[1] is "write", make sure argc is exactly 4
- convert the pin number from string to integer. You may be tempted to use atoi() but you must not, because atoi() does not check for conversion errors. Use strtol() instead.
- Make sure the converted pin number is in the range 0..7
For the "read" case we are done with our checks here
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- for the "write" case convert the logic level and make sure you get either 0 or 1
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- for the "write" case convert the logic level and make sure you get either 0 or 1
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In addition to the solutions on the Raspberry Pi I wrote a simple Qt GUI:
https://iotworkshop.africa/pub/Embedded_Systems/SolutionsToTheExercises/QtLED.tar.gz |
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- Solutions to the exercises on switches
These exercises have also been skipped because of lack of time but I attach the solution codes nevertheless such that you can have a look at them and/or use them in a future course
https://iotworkshop.africa/pub/Embedded_Systems/SolutionsToTheExercises/switches.tar.gz |
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