Have you ever tried to find a case for your device? And if you need a case with a power supply? Which plug directly into an electrical outlet?
How nice that we all have a magic box for unnecessary phone chargers!
Voila! Now we have a temperature sensor, which we can easily plug into any outlet in our house!
It will be just as easy for you to reprogram this device - the USB port serves not only for powering but also for programming this module.
Enjoy this project?