Cannot set dynamic Accessory Name? about homespan HOT 2 CLOSED

When passing char arrays variables, such as in your code snippet above, HomeSpan retains the pointer and does not make a new copy of the string. This saves a lot of space, especially since in most use cases the strings are static. However, it is still possible to pass a dynamic string, as long as the pointer to the memory does not go out of scope leaving the memory free for other uses.

In your snippet above, is name[64] a local variable defined within a function? If so, as soon as the function returns, the memory associated with name (which is likely on the stack) will be reused and overwritten by other processes, resulting in what you are seeing.

The solution is to assign some permanent storage to name - this can be done by:

• creating name as a global variable (not the best solution in large-scale programming, but fine for a short sketch), or
• using "new" to allocate memory with a dynamic pointer so the memory is retained even after the pointer to it goes out of scope, or
• declaring name as an object variable as part of a child class containing all the logic and parameters of a HomeSpan Service.

An example of using the first method can be found in the ProgrammableHub Project.

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Thanks for the scopes explanation, moving the variable into a global scope works.

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