If you follow my blog you will have noticed that my TemperatureNode is now in a working state. Yes, i know...it's functionality is very limited. But I will not stop here! But for now I am going to mount it a few metres away from my PC and i do not want to cary my node every time to my computer to flash it. The solution is named OTA-updates or in it's long version over-the-air-updates. In this short posting I am going to describe one of two ways to realize it.