4
votes
Accepted
How to convert a reading to percentage in Arduino
You wrote:
return (reading - 54)/(100/920);
In C++, 100/920 is zero. This is because, when both operands are
integers, the division operator performs an integer division. You can
overcome this ...
- 36.2k
2
votes
Accepted
How to do 'for' loop over inline anonymous array
I'm trying to enrich my C++ skills & be fancy
The Arduino Mega is probably not the right platform to learn fancy C++.
The development environment doesn't support all the modern C++ stuff. In
...
- 36.2k
1
vote
Accepted
Create member object using constructor arguments, or pass reference to object via constructor
When you define
HD44780LCD lcd;
at global scope, you are creating a global variable that is initialized
before main() is called. In this case, it is initialized with the
default constructor ...
- 36.2k
1
vote
Where should unit tests go in the Arduino IDE
One way to do it is to use preprocessor conditionals. Name your project file and unit-test files with .cpp extensions and put them in a subfolder (called "sources" in my example). Then your ....
- 14.5k
1
vote
How to do 'for' loop over inline anonymous array
Edgar Bonet answers why for (int pin : {DIP5, DIP4, DIP3, DIP2, DIP1, DIP0}) { isn't working. What you would get (where supported) with this syntax is an initializer_list which itself is not an array ...
- 3,913
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