Devices and machines are evolving into their smarter version with the requirement of additional sensors, smarter display and ability to contact to the outside world. Along with these features also comes the complexity. And if something goes wrong, the devices need to be opened up or are connected to ports to diagnose the problem.
These issues add several limitations such as waterproofing, product cost and serviceability cost of the device. Many times, it not possible to add a dedicated display to the device because of cost or form factor reasons.
This article discusses some of these issues in smart devices and how BLE is increasingly used to tackle those issues.