How to Use HM-10 BLE Module with Arduino to Control an LED using Android App
Bluetooth is one of the most popular and easy to use wireless technology. Over the few years there have been many upgrades of Bluetooth standard to keep pace with the current ongoing technology with future technology and to satisfy needs of users. Starting from the Bluetooth version 1.0 to Bluetooth version 5.0, there are many things changed including higher data rates, the ability to be used for IoT with low current consumption, improved security, etc.
[original story: Circuit Digest]