* Re #3827: added mutex to getADC(), because adcRead() is not reentrant * Re #3827: alternative solution to prevent calling getADC() from different threads, because adcRead() is not reentrant * Cosmetics
* Re #3827: added mutex to getADC(), because adcRead() is not reentrant * Re #3827: alternative solution to prevent calling getADC() from different threads, because adcRead() is not reentrant * Cosmetics